diff --git a/PLAN.MD b/PLAN.MD
new file mode 100644
index 00000000..7c3b1007
--- /dev/null
+++ b/PLAN.MD
@@ -0,0 +1,27 @@
+# 프로젝트: Digital Twin 에디터 안정화
+
+## 개요
+
+Digital Twin 에디터(`DigitalTwinEditor.tsx`)에서 발생한 런타임 에러(`TypeError: Cannot read properties of undefined`)를 수정하고, 전반적인 안정성을 확보합니다.
+
+## 핵심 기능
+
+1. `DigitalTwinEditor` 버그 수정
+2. 비동기 함수 입력값 유효성 검증 강화
+3. 외부 DB 연결 상태에 따른 방어 코드 추가
+
+## 테스트 계획
+
+### 1단계: 긴급 버그 수정
+
+- [x] `loadMaterialCountsForLocations` 함수에서 `locaKeys` undefined 체크 추가 (완료)
+- [ ] 에디터 로드 및 객체 조작 시 에러 발생 여부 확인
+
+### 2단계: 잠재적 문제 점검
+
+- [ ] `loadLayout` 등 주요 로딩 함수의 데이터 유효성 검사
+- [ ] `handleToolDragStart`, `handleCanvasDrop` 등 인터랙션 함수의 예외 처리
+
+## 진행 상태
+
+- [진행중] 1단계 긴급 버그 수정 완료 후 사용자 피드백 대기 중
diff --git a/PROJECT_STATUS_2025_11_20.md b/PROJECT_STATUS_2025_11_20.md
new file mode 100644
index 00000000..570dd789
--- /dev/null
+++ b/PROJECT_STATUS_2025_11_20.md
@@ -0,0 +1,57 @@
+# 프로젝트 진행 상황 (2025-11-20)
+
+## 작업 개요: 디지털 트윈 3D 야드 고도화 (동적 계층 구조)
+
+### 1. 핵심 변경 사항
+기존의 고정된 `Area` -> `Location` 2단계 구조를 유연한 **N-Level 동적 계층 구조**로 변경하고, 공간적 제약을 강화했습니다.
+
+### 2. 완료된 작업
+
+#### 데이터베이스
+- **마이그레이션 실행**: `db/migrations/042_refactor_digital_twin_hierarchy.sql`
+- **스키마 변경**:
+  - `digital_twin_layout` 테이블에 `hierarchy_config` (JSONB) 컬럼 추가
+  - `digital_twin_objects` 테이블에 `hierarchy_level`, `parent_key`, `external_key` 컬럼 추가
+  - 기존 하드코딩된 테이블 매핑 컬럼 제거
+
+#### 백엔드 (Node.js)
+- **API 추가/수정**:
+  - `POST /api/digital-twin/data/hierarchy`: 계층 설정에 따른 전체 데이터 조회
+  - `POST /api/digital-twin/data/children`: 특정 부모의 하위 데이터 조회
+  - 기존 레거시 API (`getWarehouses` 등) 호환성 유지
+- **컨트롤러 수정**:
+  - `digitalTwinDataController.ts`: 동적 쿼리 생성 로직 구현
+  - `digitalTwinLayoutController.ts`: 레이아웃 저장/수정 시 `hierarchy_config` 및 객체 계층 정보 처리
+
+#### 프론트엔드 (React)
+- **신규 컴포넌트**: `HierarchyConfigPanel.tsx`
+  - 레벨 추가/삭제, 테이블 및 컬럼 매핑 설정 UI
+- **유틸리티**: `spatialContainment.ts`
+  - `validateSpatialContainment`: 자식 객체가 부모 객체 내부에 있는지 검증 (AABB)
+  - `updateChildrenPositions`: 부모 이동 시 자식 객체 자동 이동 (그룹 이동)
+- **에디터 통합 (`DigitalTwinEditor.tsx`)**:
+  - `HierarchyConfigPanel` 적용
+  - 동적 데이터 로드 로직 구현
+  - 3D 캔버스 드래그앤드롭 시 공간적 종속성 검증 적용
+  - 객체 이동 시 그룹 이동 적용
+
+### 3. 현재 상태
+- **백엔드 서버**: 재시작 완료, 정상 동작 중 (PostgreSQL 연결 이슈 해결됨)
+- **DB**: 마이그레이션 스크립트 실행 완료
+
+### 4. 다음 단계 (테스트 필요)
+새로운 세션에서 다음 시나리오를 테스트해야 합니다:
+1. **계층 설정**: 에디터에서 창고 -> 구역(Lv1) -> 위치(Lv2) 설정 및 매핑 저장
+2. **배치 검증**:
+   - 구역 배치 후, 위치를 구역 **내부**에 배치 (성공해야 함)
+   - 위치를 구역 **외부**에 배치 (실패해야 함)
+3. **이동 검증**: 구역 이동 시 내부의 위치들도 같이 따라오는지 확인
+
+### 5. 관련 파일
+- `frontend/components/admin/dashboard/widgets/yard-3d/DigitalTwinEditor.tsx`
+- `frontend/components/admin/dashboard/widgets/yard-3d/HierarchyConfigPanel.tsx`
+- `frontend/components/admin/dashboard/widgets/yard-3d/spatialContainment.ts`
+- `backend-node/src/controllers/digitalTwinDataController.ts`
+- `backend-node/src/routes/digitalTwinRoutes.ts`
+- `db/migrations/042_refactor_digital_twin_hierarchy.sql`
+
diff --git a/backend-node/src/controllers/digitalTwinDataController.ts b/backend-node/src/controllers/digitalTwinDataController.ts
index 51dd85d8..80cb8ccd 100644
--- a/backend-node/src/controllers/digitalTwinDataController.ts
+++ b/backend-node/src/controllers/digitalTwinDataController.ts
@@ -36,7 +36,138 @@ export async function getExternalDbConnector(connectionId: number) {
   );
 }
 
-// 창고 목록 조회 (사용자 지정 테이블)
+// 동적 계층 구조 데이터 조회 (범용)
+export const getHierarchyData = async (req: Request, res: Response): Promise<Response> => {
+  try {
+    const { externalDbConnectionId, hierarchyConfig } = req.body;
+
+    if (!externalDbConnectionId || !hierarchyConfig) {
+      return res.status(400).json({
+        success: false,
+        message: "외부 DB 연결 ID와 계층 구조 설정이 필요합니다.",
+      });
+    }
+
+    const connector = await getExternalDbConnector(Number(externalDbConnectionId));
+    const config = JSON.parse(hierarchyConfig);
+
+    const result: any = {
+      warehouse: null,
+      levels: [],
+      materials: [],
+    };
+
+    // 창고 데이터 조회
+    if (config.warehouse) {
+      const warehouseQuery = `SELECT * FROM ${config.warehouse.tableName} LIMIT 100`;
+      const warehouseResult = await connector.executeQuery(warehouseQuery);
+      result.warehouse = warehouseResult.rows;
+    }
+
+    // 각 레벨 데이터 조회
+    if (config.levels && Array.isArray(config.levels)) {
+      for (const level of config.levels) {
+        const levelQuery = `SELECT * FROM ${level.tableName} LIMIT 1000`;
+        const levelResult = await connector.executeQuery(levelQuery);
+        
+        result.levels.push({
+          level: level.level,
+          name: level.name,
+          data: levelResult.rows,
+        });
+      }
+    }
+
+    // 자재 데이터 조회 (개수만)
+    if (config.material) {
+      const materialQuery = `
+        SELECT 
+          ${config.material.locationKeyColumn} as location_key,
+          COUNT(*) as count
+        FROM ${config.material.tableName}
+        GROUP BY ${config.material.locationKeyColumn}
+      `;
+      const materialResult = await connector.executeQuery(materialQuery);
+      result.materials = materialResult.rows;
+    }
+
+    logger.info("동적 계층 구조 데이터 조회", {
+      externalDbConnectionId,
+      warehouseCount: result.warehouse?.length || 0,
+      levelCounts: result.levels.map((l: any) => ({ level: l.level, count: l.data.length })),
+    });
+
+    return res.json({
+      success: true,
+      data: result,
+    });
+  } catch (error: any) {
+    logger.error("동적 계층 구조 데이터 조회 실패", error);
+    return res.status(500).json({
+      success: false,
+      message: "데이터 조회 중 오류가 발생했습니다.",
+      error: error.message,
+    });
+  }
+};
+
+// 특정 레벨의 하위 데이터 조회
+export const getChildrenData = async (req: Request, res: Response): Promise<Response> => {
+  try {
+    const { externalDbConnectionId, hierarchyConfig, parentLevel, parentKey } = req.body;
+
+    if (!externalDbConnectionId || !hierarchyConfig || !parentLevel || !parentKey) {
+      return res.status(400).json({
+        success: false,
+        message: "필수 파라미터가 누락되었습니다.",
+      });
+    }
+
+    const connector = await getExternalDbConnector(Number(externalDbConnectionId));
+    const config = JSON.parse(hierarchyConfig);
+
+    // 다음 레벨 찾기
+    const nextLevel = config.levels?.find((l: any) => l.level === parentLevel + 1);
+
+    if (!nextLevel) {
+      return res.json({
+        success: true,
+        data: [],
+        message: "하위 레벨이 없습니다.",
+      });
+    }
+
+    // 하위 데이터 조회
+    const query = `
+      SELECT * FROM ${nextLevel.tableName}
+      WHERE ${nextLevel.parentKeyColumn} = '${parentKey}'
+      LIMIT 1000
+    `;
+
+    const result = await connector.executeQuery(query);
+
+    logger.info("하위 데이터 조회", {
+      externalDbConnectionId,
+      parentLevel,
+      parentKey,
+      count: result.rows.length,
+    });
+
+    return res.json({
+      success: true,
+      data: result.rows,
+    });
+  } catch (error: any) {
+    logger.error("하위 데이터 조회 실패", error);
+    return res.status(500).json({
+      success: false,
+      message: "하위 데이터 조회 중 오류가 발생했습니다.",
+      error: error.message,
+    });
+  }
+};
+
+// 창고 목록 조회 (사용자 지정 테이블) - 레거시, 호환성 유지
 export const getWarehouses = async (req: Request, res: Response): Promise<Response> => {
   try {
     const { externalDbConnectionId, tableName } = req.query;
@@ -83,32 +214,29 @@ export const getWarehouses = async (req: Request, res: Response): Promise<Respon
   }
 };
 
-// Area 목록 조회 (사용자 지정 테이블)
+// 구역 목록 조회 (사용자 지정 테이블) - 레거시, 호환성 유지
 export const getAreas = async (req: Request, res: Response): Promise<Response> => {
   try {
-    const { externalDbConnectionId, tableName, warehouseKey } = req.query;
+    const { externalDbConnectionId, warehouseKey, tableName } = req.query;
 
-    if (!externalDbConnectionId || !tableName) {
+    if (!externalDbConnectionId || !warehouseKey || !tableName) {
       return res.status(400).json({
         success: false,
-        message: "외부 DB 연결 ID와 테이블명이 필요합니다.",
+        message: "필수 파라미터가 누락되었습니다.",
       });
     }
 
     const connector = await getExternalDbConnector(Number(externalDbConnectionId));
 
-    // 테이블명을 사용하여 모든 컬럼 조회
-    let query = `SELECT * FROM ${tableName}`;
-    
-    if (warehouseKey) {
-      query += ` WHERE WAREKEY = '${warehouseKey}'`;
-    }
-    
-    query += ` LIMIT 1000`;
+    const query = `
+      SELECT * FROM ${tableName}
+      WHERE WAREKEY = '${warehouseKey}'
+      LIMIT 1000
+    `;
 
     const result = await connector.executeQuery(query);
 
-    logger.info("Area 목록 조회", {
+    logger.info("구역 목록 조회", {
       externalDbConnectionId,
       tableName,
       warehouseKey,
@@ -120,41 +248,38 @@ export const getAreas = async (req: Request, res: Response): Promise<Response> =
       data: result.rows,
     });
   } catch (error: any) {
-    logger.error("Area 목록 조회 실패", error);
+    logger.error("구역 목록 조회 실패", error);
     return res.status(500).json({
       success: false,
-      message: "Area 목록 조회 중 오류가 발생했습니다.",
+      message: "구역 목록 조회 중 오류가 발생했습니다.",
       error: error.message,
     });
   }
 };
 
-// Location 목록 조회 (사용자 지정 테이블)
+// 위치 목록 조회 (사용자 지정 테이블) - 레거시, 호환성 유지
 export const getLocations = async (req: Request, res: Response): Promise<Response> => {
   try {
-    const { externalDbConnectionId, tableName, areaKey } = req.query;
+    const { externalDbConnectionId, areaKey, tableName } = req.query;
 
-    if (!externalDbConnectionId || !tableName) {
+    if (!externalDbConnectionId || !areaKey || !tableName) {
       return res.status(400).json({
         success: false,
-        message: "외부 DB 연결 ID와 테이블명이 필요합니다.",
+        message: "필수 파라미터가 누락되었습니다.",
       });
     }
 
     const connector = await getExternalDbConnector(Number(externalDbConnectionId));
 
-    // 테이블명을 사용하여 모든 컬럼 조회
-    let query = `SELECT * FROM ${tableName}`;
-    
-    if (areaKey) {
-      query += ` WHERE AREAKEY = '${areaKey}'`;
-    }
-    
-    query += ` LIMIT 1000`;
+    const query = `
+      SELECT * FROM ${tableName}
+      WHERE AREAKEY = '${areaKey}'
+      LIMIT 1000
+    `;
 
     const result = await connector.executeQuery(query);
 
-    logger.info("Location 목록 조회", {
+    logger.info("위치 목록 조회", {
       externalDbConnectionId,
       tableName,
       areaKey,
@@ -166,37 +291,46 @@ export const getLocations = async (req: Request, res: Response): Promise<Respons
       data: result.rows,
     });
   } catch (error: any) {
-    logger.error("Location 목록 조회 실패", error);
+    logger.error("위치 목록 조회 실패", error);
     return res.status(500).json({
       success: false,
-      message: "Location 목록 조회 중 오류가 발생했습니다.",
+      message: "위치 목록 조회 중 오류가 발생했습니다.",
       error: error.message,
     });
   }
 };
 
-// 자재 목록 조회 (사용자 지정 테이블)
+// 자재 목록 조회 (동적 컬럼 매핑 지원)
 export const getMaterials = async (req: Request, res: Response): Promise<Response> => {
   try {
-    const { externalDbConnectionId, tableName, locaKey } = req.query;
+    const { 
+      externalDbConnectionId, 
+      locaKey, 
+      tableName,
+      keyColumn,
+      locationKeyColumn,
+      layerColumn
+    } = req.query;
 
-    if (!externalDbConnectionId || !tableName) {
+    if (!externalDbConnectionId || !locaKey || !tableName || !locationKeyColumn) {
       return res.status(400).json({
         success: false,
-        message: "외부 DB 연결 ID와 테이블명이 필요합니다.",
+        message: "필수 파라미터가 누락되었습니다.",
       });
     }
 
     const connector = await getExternalDbConnector(Number(externalDbConnectionId));
 
-    // 테이블명을 사용하여 모든 컬럼 조회
-    let query = `SELECT * FROM ${tableName}`;
-    
-    if (locaKey) {
-      query += ` WHERE LOCAKEY = '${locaKey}'`;
-    }
-    
-    query += ` LIMIT 1000`;
+    // 동적 쿼리 생성
+    const orderByClause = layerColumn ? `ORDER BY ${layerColumn}` : '';
+    const query = `
+      SELECT * FROM ${tableName}
+      WHERE ${locationKeyColumn} = '${locaKey}'
+      ${orderByClause}
+      LIMIT 1000
+    `;
+
+    logger.info(`자재 조회 쿼리: ${query}`);
 
     const result = await connector.executeQuery(query);
 
@@ -221,31 +355,28 @@ export const getMaterials = async (req: Request, res: Response): Promise<Respons
   }
 };
 
-// Location별 자재 개수 조회 (배치 시 사용 - 사용자 지정 테이블)
+// 자재 개수 조회 (여러 Location 일괄) - 레거시, 호환성 유지
 export const getMaterialCounts = async (req: Request, res: Response): Promise<Response> => {
   try {
-    const { externalDbConnectionId, tableName, locaKeys } = req.query;
+    const { externalDbConnectionId, locationKeys, tableName } = req.body;
 
-    if (!externalDbConnectionId || !tableName || !locaKeys) {
+    if (!externalDbConnectionId || !locationKeys || !tableName) {
       return res.status(400).json({
         success: false,
-        message: "외부 DB 연결 ID, 테이블명, Location 키 목록이 필요합니다.",
+        message: "필수 파라미터가 누락되었습니다.",
       });
     }
 
     const connector = await getExternalDbConnector(Number(externalDbConnectionId));
 
-    // locaKeys는 쉼표로 구분된 문자열
-    const locaKeyArray = (locaKeys as string).split(",");
-    const quotedKeys = locaKeyArray.map((key) => `'${key}'`).join(",");
+    const keysString = locationKeys.map((key: string) => `'${key}'`).join(",");
 
     const query = `
       SELECT 
-        LOCAKEY,
-        COUNT(*) as material_count,
-        MAX(LOLAYER) as max_layer
+        LOCAKEY as location_key,
+        COUNT(*) as count
       FROM ${tableName}
-      WHERE LOCAKEY IN (${quotedKeys})
+      WHERE LOCAKEY IN (${keysString})
       GROUP BY LOCAKEY
     `;
 
@@ -254,7 +385,7 @@ export const getMaterialCounts = async (req: Request, res: Response): Promise<Re
     logger.info("자재 개수 조회", {
       externalDbConnectionId,
       tableName,
-      locaKeyCount: locaKeyArray.length,
+      locationCount: locationKeys.length,
     });
 
     return res.json({
@@ -270,4 +401,3 @@ export const getMaterialCounts = async (req: Request, res: Response): Promise<Re
     });
   }
 };
-
diff --git a/backend-node/src/controllers/digitalTwinLayoutController.ts b/backend-node/src/controllers/digitalTwinLayoutController.ts
index 9e66ecf2..d7ecbae1 100644
--- a/backend-node/src/controllers/digitalTwinLayoutController.ts
+++ b/backend-node/src/controllers/digitalTwinLayoutController.ts
@@ -1,10 +1,11 @@
-import { Request, Response } from "express";
+import { Response } from "express";
+import { AuthenticatedRequest } from "../types/auth";
 import { pool } from "../database/db";
 import logger from "../utils/logger";
 
 // 레이아웃 목록 조회
 export const getLayouts = async (
-  req: Request,
+  req: AuthenticatedRequest,
   res: Response
 ): Promise<Response> => {
   try {
@@ -67,7 +68,7 @@ export const getLayouts = async (
 
 // 레이아웃 상세 조회 (객체 포함)
 export const getLayoutById = async (
-  req: Request,
+  req: AuthenticatedRequest,
   res: Response
 ): Promise<Response> => {
   try {
@@ -125,7 +126,7 @@ export const getLayoutById = async (
 
 // 레이아웃 생성
 export const createLayout = async (
-  req: Request,
+  req: AuthenticatedRequest,
   res: Response
 ): Promise<Response> => {
   const client = await pool.connect();
@@ -138,6 +139,7 @@ export const createLayout = async (
       warehouseKey,
       layoutName,
       description,
+      hierarchyConfig,
       objects,
     } = req.body;
 
@@ -147,9 +149,9 @@ export const createLayout = async (
     const layoutQuery = `
       INSERT INTO digital_twin_layout (
         company_code, external_db_connection_id, warehouse_key,
-        layout_name, description, created_by, updated_by
+        layout_name, description, hierarchy_config, created_by, updated_by
       )
-      VALUES ($1, $2, $3, $4, $5, $6, $6)
+      VALUES ($1, $2, $3, $4, $5, $6, $7, $7)
       RETURNING *
     `;
 
@@ -159,6 +161,7 @@ export const createLayout = async (
       warehouseKey,
       layoutName,
       description,
+      hierarchyConfig ? JSON.stringify(hierarchyConfig) : null,
       userId,
     ]);
 
@@ -174,9 +177,10 @@ export const createLayout = async (
           rotation, color,
           area_key, loca_key, loc_type,
           material_count, material_preview_height,
-          parent_id, display_order, locked
+          parent_id, display_order, locked,
+          hierarchy_level, parent_key, external_key
         )
-        VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16, $17, $18, $19)
+        VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16, $17, $18, $19, $20, $21, $22)
       `;
 
       for (const obj of objects) {
@@ -200,6 +204,9 @@ export const createLayout = async (
           obj.parentId || null,
           obj.displayOrder || 0,
           obj.locked || false,
+          obj.hierarchyLevel || 1,
+          obj.parentKey || null,
+          obj.externalKey || null,
         ]);
       }
     }
@@ -231,7 +238,7 @@ export const createLayout = async (
 
 // 레이아웃 수정
 export const updateLayout = async (
-  req: Request,
+  req: AuthenticatedRequest,
   res: Response
 ): Promise<Response> => {
   const client = await pool.connect();
@@ -240,7 +247,14 @@ export const updateLayout = async (
     const companyCode = req.user?.companyCode;
     const userId = req.user?.userId;
     const { id } = req.params;
-    const { layoutName, description, objects } = req.body;
+    const {
+      layoutName,
+      description,
+      hierarchyConfig,
+      externalDbConnectionId,
+      warehouseKey,
+      objects,
+    } = req.body;
 
     await client.query("BEGIN");
 
@@ -249,15 +263,21 @@ export const updateLayout = async (
       UPDATE digital_twin_layout
       SET layout_name = $1,
           description = $2,
-          updated_by = $3,
+          hierarchy_config = $3,
+          external_db_connection_id = $4,
+          warehouse_key = $5,
+          updated_by = $6,
           updated_at = NOW()
-      WHERE id = $4 AND company_code = $5
+      WHERE id = $7 AND company_code = $8
       RETURNING *
     `;
 
     const layoutResult = await client.query(updateLayoutQuery, [
       layoutName,
       description,
+      hierarchyConfig ? JSON.stringify(hierarchyConfig) : null,
+      externalDbConnectionId || null,
+      warehouseKey || null,
       userId,
       id,
       companyCode,
@@ -277,7 +297,7 @@ export const updateLayout = async (
       [id]
     );
 
-    // 새 객체 저장
+    // 새 객체 저장 (부모-자식 관계 처리)
     if (objects && objects.length > 0) {
       const objectQuery = `
         INSERT INTO digital_twin_objects (
@@ -287,12 +307,53 @@ export const updateLayout = async (
           rotation, color,
           area_key, loca_key, loc_type,
           material_count, material_preview_height,
-          parent_id, display_order, locked
+          parent_id, display_order, locked,
+          hierarchy_level, parent_key, external_key
         )
-        VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16, $17, $18, $19)
+        VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16, $17, $18, $19, $20, $21, $22)
+        RETURNING id
       `;
 
-      for (const obj of objects) {
+      // 임시 ID (음수) → 실제 DB ID 매핑
+      const idMapping: { [tempId: number]: number } = {};
+
+      // 1단계: 부모 객체 먼저 저장 (parentId가 없는 것들)
+      for (const obj of objects.filter((o) => !o.parentId)) {
+        const result = await client.query(objectQuery, [
+          id,
+          obj.type,
+          obj.name,
+          obj.position.x,
+          obj.position.y,
+          obj.position.z,
+          obj.size.x,
+          obj.size.y,
+          obj.size.z,
+          obj.rotation || 0,
+          obj.color,
+          obj.areaKey || null,
+          obj.locaKey || null,
+          obj.locType || null,
+          obj.materialCount || 0,
+          obj.materialPreview?.height || null,
+          null, // parent_id
+          obj.displayOrder || 0,
+          obj.locked || false,
+          obj.hierarchyLevel || 1,
+          obj.parentKey || null,
+          obj.externalKey || null,
+        ]);
+
+        // 임시 ID와 실제 DB ID 매핑
+        if (obj.id) {
+          idMapping[obj.id] = result.rows[0].id;
+        }
+      }
+
+      // 2단계: 자식 객체 저장 (parentId가 있는 것들)
+      for (const obj of objects.filter((o) => o.parentId)) {
+        const realParentId = idMapping[obj.parentId!] || null;
+
         await client.query(objectQuery, [
           id,
           obj.type,
@@ -310,9 +371,12 @@ export const updateLayout = async (
           obj.locType || null,
           obj.materialCount || 0,
           obj.materialPreview?.height || null,
-          obj.parentId || null,
+          realParentId, // 실제 DB ID 사용
           obj.displayOrder || 0,
           obj.locked || false,
+          obj.hierarchyLevel || 1,
+          obj.parentKey || null,
+          obj.externalKey || null,
         ]);
       }
     }
@@ -344,7 +408,7 @@ export const updateLayout = async (
 
 // 레이아웃 삭제
 export const deleteLayout = async (
-  req: Request,
+  req: AuthenticatedRequest,
   res: Response
 ): Promise<Response> => {
   try {
diff --git a/backend-node/src/controllers/entitySearchController.ts b/backend-node/src/controllers/entitySearchController.ts
index 5046d8bb..880c54fc 100644
--- a/backend-node/src/controllers/entitySearchController.ts
+++ b/backend-node/src/controllers/entitySearchController.ts
@@ -1,4 +1,5 @@
-import { Request, Response } from "express";
+import { Response } from "express";
+import { AuthenticatedRequest } from "../types/auth";
 import { getPool } from "../database/db";
 import { logger } from "../utils/logger";
 
@@ -6,7 +7,7 @@ import { logger } from "../utils/logger";
  * 엔티티 검색 API
  * GET /api/entity-search/:tableName
  */
-export async function searchEntity(req: Request, res: Response) {
+export async function searchEntity(req: AuthenticatedRequest, res: Response) {
   try {
     const { tableName } = req.params;
     const {
@@ -22,7 +23,8 @@ export async function searchEntity(req: Request, res: Response) {
       logger.warn("엔티티 검색 실패: 테이블명이 없음", { tableName });
       return res.status(400).json({
         success: false,
-        message: "테이블명이 지정되지 않았습니다. 컴포넌트 설정에서 sourceTable을 확인해주세요.",
+        message:
+          "테이블명이 지정되지 않았습니다. 컴포넌트 설정에서 sourceTable을 확인해주세요.",
       });
     }
 
@@ -111,8 +113,10 @@ export async function searchEntity(req: Request, res: Response) {
       },
     });
   } catch (error: any) {
-    logger.error("엔티티 검색 오류", { error: error.message, stack: error.stack });
+    logger.error("엔티티 검색 오류", {
+      error: error.message,
+      stack: error.stack,
+    });
     res.status(500).json({ success: false, message: error.message });
   }
 }
-
diff --git a/backend-node/src/controllers/orderController.ts b/backend-node/src/controllers/orderController.ts
index 0b76fd95..e38f2466 100644
--- a/backend-node/src/controllers/orderController.ts
+++ b/backend-node/src/controllers/orderController.ts
@@ -1,4 +1,5 @@
-import { Request, Response } from "express";
+import { Response } from "express";
+import { AuthenticatedRequest } from "../types/auth";
 import { getPool } from "../database/db";
 import { logger } from "../utils/logger";
 
@@ -35,7 +36,7 @@ async function generateOrderNumber(companyCode: string): Promise<string> {
  * 수주 등록 API
  * POST /api/orders
  */
-export async function createOrder(req: Request, res: Response) {
+export async function createOrder(req: AuthenticatedRequest, res: Response) {
   const pool = getPool();
 
   try {
@@ -167,7 +168,7 @@ export async function createOrder(req: Request, res: Response) {
  * 수주 목록 조회 API
  * GET /api/orders
  */
-export async function getOrders(req: Request, res: Response) {
+export async function getOrders(req: AuthenticatedRequest, res: Response) {
   const pool = getPool();
 
   try {
@@ -235,4 +236,3 @@ export async function getOrders(req: Request, res: Response) {
     });
   }
 }
-
diff --git a/backend-node/src/routes/dataRoutes.ts b/backend-node/src/routes/dataRoutes.ts
index c696d5de..f87aa5d6 100644
--- a/backend-node/src/routes/dataRoutes.ts
+++ b/backend-node/src/routes/dataRoutes.ts
@@ -14,8 +14,17 @@ router.get(
   authenticateToken,
   async (req: AuthenticatedRequest, res) => {
     try {
-      const { leftTable, rightTable, leftColumn, rightColumn, leftValue, dataFilter, enableEntityJoin, displayColumns, deduplication } =
-        req.query;
+      const {
+        leftTable,
+        rightTable,
+        leftColumn,
+        rightColumn,
+        leftValue,
+        dataFilter,
+        enableEntityJoin,
+        displayColumns,
+        deduplication,
+      } = req.query;
 
       // 입력값 검증
       if (!leftTable || !rightTable || !leftColumn || !rightColumn) {
@@ -38,7 +47,9 @@ router.get(
       }
 
       // 🆕 enableEntityJoin 파싱
-      const enableEntityJoinFlag = enableEntityJoin === "true" || enableEntityJoin === true;
+      const enableEntityJoinFlag =
+        enableEntityJoin === "true" ||
+        (typeof enableEntityJoin === "boolean" && enableEntityJoin);
 
       // SQL 인젝션 방지를 위한 검증
       const tables = [leftTable as string, rightTable as string];
@@ -68,7 +79,9 @@ router.get(
       const userCompany = req.user?.companyCode;
 
       // displayColumns 파싱 (item_info.item_name 등)
-      let parsedDisplayColumns: Array<{ name: string; label?: string }> | undefined;
+      let parsedDisplayColumns:
+        | Array<{ name: string; label?: string }>
+        | undefined;
       if (displayColumns) {
         try {
           parsedDisplayColumns = JSON.parse(displayColumns as string);
@@ -78,12 +91,14 @@ router.get(
       }
 
       // 🆕 deduplication 파싱
-      let parsedDeduplication: {
-        enabled: boolean;
-        groupByColumn: string;
-        keepStrategy: "latest" | "earliest" | "base_price" | "current_date";
-        sortColumn?: string;
-      } | undefined;
+      let parsedDeduplication:
+        | {
+            enabled: boolean;
+            groupByColumn: string;
+            keepStrategy: "latest" | "earliest" | "base_price" | "current_date";
+            sortColumn?: string;
+          }
+        | undefined;
       if (deduplication) {
         try {
           parsedDeduplication = JSON.parse(deduplication as string);
@@ -340,30 +355,37 @@ router.get(
       }
 
       const { enableEntityJoin, groupByColumns } = req.query;
-      const enableEntityJoinFlag = enableEntityJoin === "true" || enableEntityJoin === true;
-      
+      const enableEntityJoinFlag =
+        enableEntityJoin === "true" ||
+        (typeof enableEntityJoin === "boolean" && enableEntityJoin);
+
       // groupByColumns 파싱 (JSON 문자열 또는 쉼표 구분)
       let groupByColumnsArray: string[] = [];
       if (groupByColumns) {
         try {
           if (typeof groupByColumns === "string") {
             // JSON 형식이면 파싱, 아니면 쉼표로 분리
-            groupByColumnsArray = groupByColumns.startsWith("[") 
-              ? JSON.parse(groupByColumns) 
-              : groupByColumns.split(",").map(c => c.trim());
+            groupByColumnsArray = groupByColumns.startsWith("[")
+              ? JSON.parse(groupByColumns)
+              : groupByColumns.split(",").map((c) => c.trim());
           }
         } catch (error) {
           console.warn("groupByColumns 파싱 실패:", error);
         }
       }
 
-      console.log(`🔍 레코드 상세 조회: ${tableName}/${id}`, { 
+      console.log(`🔍 레코드 상세 조회: ${tableName}/${id}`, {
         enableEntityJoin: enableEntityJoinFlag,
-        groupByColumns: groupByColumnsArray 
+        groupByColumns: groupByColumnsArray,
       });
 
       // 레코드 상세 조회 (Entity Join 옵션 + 그룹핑 옵션 포함)
-      const result = await dataService.getRecordDetail(tableName, id, enableEntityJoinFlag, groupByColumnsArray);
+      const result = await dataService.getRecordDetail(
+        tableName,
+        id,
+        enableEntityJoinFlag,
+        groupByColumnsArray
+      );
 
       if (!result.success) {
         return res.status(400).json(result);
@@ -396,7 +418,7 @@ router.get(
 /**
  * 그룹화된 데이터 UPSERT API
  * POST /api/data/upsert-grouped
- * 
+ *
  * 요청 본문:
  * {
  *   tableName: string,
@@ -415,7 +437,8 @@ router.post(
       if (!tableName || !parentKeys || !records || !Array.isArray(records)) {
         return res.status(400).json({
           success: false,
-          message: "필수 파라미터가 누락되었습니다 (tableName, parentKeys, records).",
+          message:
+            "필수 파라미터가 누락되었습니다 (tableName, parentKeys, records).",
           error: "MISSING_PARAMETERS",
         });
       }
@@ -450,17 +473,17 @@ router.post(
       }
 
       console.log(`✅ 그룹화된 데이터 UPSERT 성공: ${tableName}`, {
-        inserted: result.inserted,
-        updated: result.updated,
-        deleted: result.deleted,
+        inserted: result.data?.inserted || 0,
+        updated: result.data?.updated || 0,
+        deleted: result.data?.deleted || 0,
       });
 
       return res.json({
         success: true,
         message: "데이터가 저장되었습니다.",
-        inserted: result.inserted,
-        updated: result.updated,
-        deleted: result.deleted,
+        inserted: result.data?.inserted || 0,
+        updated: result.data?.updated || 0,
+        deleted: result.data?.deleted || 0,
       });
     } catch (error) {
       console.error("그룹화된 데이터 UPSERT 오류:", error);
@@ -506,16 +529,22 @@ router.post(
 
       // company_code와 company_name 자동 추가 (멀티테넌시)
       const enrichedData = { ...data };
-      
+
       // 테이블에 company_code 컬럼이 있는지 확인하고 자동으로 추가
-      const hasCompanyCode = await dataService.checkColumnExists(tableName, "company_code");
+      const hasCompanyCode = await dataService.checkColumnExists(
+        tableName,
+        "company_code"
+      );
       if (hasCompanyCode && req.user?.companyCode) {
         enrichedData.company_code = req.user.companyCode;
         console.log(`🏢 company_code 자동 추가: ${req.user.companyCode}`);
       }
-      
+
       // 테이블에 company_name 컬럼이 있는지 확인하고 자동으로 추가
-      const hasCompanyName = await dataService.checkColumnExists(tableName, "company_name");
+      const hasCompanyName = await dataService.checkColumnExists(
+        tableName,
+        "company_name"
+      );
       if (hasCompanyName && req.user?.companyName) {
         enrichedData.company_name = req.user.companyName;
         console.log(`🏢 company_name 자동 추가: ${req.user.companyName}`);
@@ -679,7 +708,10 @@ router.post(
 
       console.log(`🗑️ 그룹 삭제:`, { tableName, filterConditions });
 
-      const result = await dataService.deleteGroupRecords(tableName, filterConditions);
+      const result = await dataService.deleteGroupRecords(
+        tableName,
+        filterConditions
+      );
 
       if (!result.success) {
         return res.status(400).json(result);
diff --git a/backend-node/src/routes/digitalTwinRoutes.ts b/backend-node/src/routes/digitalTwinRoutes.ts
index 3130b470..904096f7 100644
--- a/backend-node/src/routes/digitalTwinRoutes.ts
+++ b/backend-node/src/routes/digitalTwinRoutes.ts
@@ -12,6 +12,8 @@ import {
 
 // 외부 DB 데이터 조회
 import {
+  getHierarchyData,
+  getChildrenData,
   getWarehouses,
   getAreas,
   getLocations,
@@ -32,6 +34,12 @@ router.put("/layouts/:id", updateLayout);              // 레이아웃 수정
 router.delete("/layouts/:id", deleteLayout);           // 레이아웃 삭제
 
 // ========== 외부 DB 데이터 조회 API ==========
+
+// 동적 계층 구조 API
+router.post("/data/hierarchy", getHierarchyData);      // 전체 계층 데이터 조회
+router.post("/data/children", getChildrenData);        // 특정 부모의 하위 데이터 조회
+
+// 테이블 메타데이터 API
 router.get("/data/tables/:connectionId", async (req, res) => {
   // 테이블 목록 조회
   try {
@@ -56,11 +64,12 @@ router.get("/data/table-preview/:connectionId/:tableName", async (req, res) => {
   }
 });
 
+// 레거시 API (호환성 유지)
 router.get("/data/warehouses", getWarehouses);         // 창고 목록
 router.get("/data/areas", getAreas);                   // Area 목록
 router.get("/data/locations", getLocations);           // Location 목록
 router.get("/data/materials", getMaterials);           // 자재 목록 (특정 Location)
-router.get("/data/material-counts", getMaterialCounts); // 자재 개수 (여러 Location)
+router.post("/data/material-counts", getMaterialCounts); // 자재 개수 (여러 Location) - POST로 변경
 
 export default router;
 
diff --git a/frontend/app/(main)/admin/dashboard/DashboardListClient.tsx b/frontend/app/(main)/admin/dashboard/DashboardListClient.tsx
index 082e8661..e7680584 100644
--- a/frontend/app/(main)/admin/dashboard/DashboardListClient.tsx
+++ b/frontend/app/(main)/admin/dashboard/DashboardListClient.tsx
@@ -18,32 +18,26 @@ import { Pagination, PaginationInfo } from "@/components/common/Pagination";
 import { DeleteConfirmModal } from "@/components/common/DeleteConfirmModal";
 import { Plus, Search, Edit, Trash2, Copy, MoreVertical, AlertCircle, RefreshCw } from "lucide-react";
 
-interface DashboardListClientProps {
-  initialDashboards: Dashboard[];
-  initialPagination: {
-    total: number;
-    page: number;
-    limit: number;
-  };
-}
-
 /**
  * 대시보드 목록 클라이언트 컴포넌트
+ * - CSR 방식으로 초기 데이터 로드
  * - 대시보드 목록 조회
  * - 대시보드 생성/수정/삭제/복사
  */
-export default function DashboardListClient({ initialDashboards, initialPagination }: DashboardListClientProps) {
+export default function DashboardListClient() {
   const router = useRouter();
   const { toast } = useToast();
-  const [dashboards, setDashboards] = useState<Dashboard[]>(initialDashboards);
-  const [loading, setLoading] = useState(false); // 초기 로딩은 서버에서 완료
+  
+  // 상태 관리
+  const [dashboards, setDashboards] = useState<Dashboard[]>([]);
+  const [loading, setLoading] = useState(true); // CSR이므로 초기 로딩 true
   const [error, setError] = useState<string | null>(null);
   const [searchTerm, setSearchTerm] = useState("");
 
   // 페이지네이션 상태
-  const [currentPage, setCurrentPage] = useState(initialPagination.page);
-  const [pageSize, setPageSize] = useState(initialPagination.limit);
-  const [totalCount, setTotalCount] = useState(initialPagination.total);
+  const [currentPage, setCurrentPage] = useState(1);
+  const [pageSize, setPageSize] = useState(10);
+  const [totalCount, setTotalCount] = useState(0);
 
   // 모달 상태
   const [deleteDialogOpen, setDeleteDialogOpen] = useState(false);
@@ -73,17 +67,8 @@ export default function DashboardListClient({ initialDashboards, initialPaginati
     }
   };
 
-  // 초기 로드 여부 추적
-  const [isInitialLoad, setIsInitialLoad] = useState(true);
-
+  // 검색어/페이지 변경 시 fetch (초기 로딩 포함)
   useEffect(() => {
-    // 초기 로드는 건너뛰기 (서버에서 이미 데이터를 가져왔음)
-    if (isInitialLoad) {
-      setIsInitialLoad(false);
-      return;
-    }
-
-    // 이후 검색어/페이지 변경 시에만 fetch
     loadDashboards();
     // eslint-disable-next-line react-hooks/exhaustive-deps
   }, [searchTerm, currentPage, pageSize]);
@@ -91,7 +76,7 @@ export default function DashboardListClient({ initialDashboards, initialPaginati
   // 페이지네이션 정보 계산
   const paginationInfo: PaginationInfo = {
     currentPage,
-    totalPages: Math.ceil(totalCount / pageSize),
+    totalPages: Math.ceil(totalCount / pageSize) || 1,
     totalItems: totalCount,
     itemsPerPage: pageSize,
     startItem: totalCount === 0 ? 0 : (currentPage - 1) * pageSize + 1,
diff --git a/frontend/app/(main)/admin/dashboard/page.tsx b/frontend/app/(main)/admin/dashboard/page.tsx
index 8d78600c..7d09bafc 100644
--- a/frontend/app/(main)/admin/dashboard/page.tsx
+++ b/frontend/app/(main)/admin/dashboard/page.tsx
@@ -1,73 +1,22 @@
 import DashboardListClient from "@/app/(main)/admin/dashboard/DashboardListClient";
-import { cookies } from "next/headers";
 
 /**
- * 서버에서 초기 대시보드 목록 fetch
+ * 대시보드 관리 페이지
+ * - 클라이언트 컴포넌트를 렌더링하는 래퍼
+ * - 초기 로딩부터 CSR로 처리
  */
-async function getInitialDashboards() {
-  try {
-    // 서버 사이드 전용: 백엔드 API 직접 호출
-    // 도커 네트워크 내부에서는 서비스 이름 사용, 로컬에서는 127.0.0.1
-    const backendUrl = process.env.SERVER_API_URL || "http://backend:8080";
-
-    // 쿠키에서 authToken 추출
-    const cookieStore = await cookies();
-    const authToken = cookieStore.get("authToken")?.value;
-
-    if (!authToken) {
-      // 토큰이 없으면 빈 데이터 반환 (클라이언트에서 로드)
-      return {
-        dashboards: [],
-        pagination: { total: 0, page: 1, limit: 10 },
-      };
-    }
-
-    const response = await fetch(`${backendUrl}/api/dashboards/my?page=1&limit=10`, {
-      cache: "no-store", // 항상 최신 데이터
-      headers: {
-        "Content-Type": "application/json",
-        Authorization: `Bearer ${authToken}`, // Authorization 헤더로 전달
-      },
-    });
-
-    if (!response.ok) {
-      throw new Error(`Failed to fetch dashboards: ${response.status}`);
-    }
-
-    const data = await response.json();
-    return {
-      dashboards: data.data || [],
-      pagination: data.pagination || { total: 0, page: 1, limit: 10 },
-    };
-  } catch (error) {
-    console.error("Server-side fetch error:", error);
-    // 에러 발생 시 빈 데이터 반환 (클라이언트에서 재시도 가능)
-    return {
-      dashboards: [],
-      pagination: { total: 0, page: 1, limit: 10 },
-    };
-  }
-}
-
-/**
- * 대시보드 관리 페이지 (서버 컴포넌트)
- * - 페이지 헤더 + 초기 데이터를 서버에서 렌더링
- * - 클라이언트 컴포넌트로 초기 데이터 전달
- */
-export default async function DashboardListPage() {
-  const initialData = await getInitialDashboards();
-
+export default function DashboardListPage() {
   return (
     <div className="bg-background flex min-h-screen flex-col">
       <div className="space-y-6 p-6">
-        {/* 페이지 헤더 (서버에서 렌더링) */}
+        {/* 페이지 헤더 */}
         <div className="space-y-2 border-b pb-4">
           <h1 className="text-3xl font-bold tracking-tight">대시보드 관리</h1>
           <p className="text-muted-foreground text-sm">대시보드를 생성하고 관리할 수 있습니다</p>
         </div>
 
-        {/* 나머지 컨텐츠 (클라이언트 컴포넌트 + 서버 데이터) */}
-        <DashboardListClient initialDashboards={initialData.dashboards} initialPagination={initialData.pagination} />
+        {/* 클라이언트 컴포넌트 */}
+        <DashboardListClient />
       </div>
     </div>
   );
diff --git a/frontend/app/test-entity-search/page.tsx b/frontend/app/test-entity-search/page.tsx
index af9317a3..802024d9 100644
--- a/frontend/app/test-entity-search/page.tsx
+++ b/frontend/app/test-entity-search/page.tsx
@@ -1,138 +1,27 @@
 "use client";
 
-import React, { useState } from "react";
-import { EntitySearchInputComponent } from "@/lib/registry/components/entity-search-input";
-import { AutocompleteSearchInputComponent } from "@/lib/registry/components/autocomplete-search-input";
+import React from "react";
 import { Card, CardContent, CardDescription, CardHeader, CardTitle } from "@/components/ui/card";
-import { Label } from "@/components/ui/label";
 
 export default function TestEntitySearchPage() {
-  const [customerCode, setCustomerCode] = useState<string>("");
-  const [customerData, setCustomerData] = useState<any>(null);
-
-  const [itemCode, setItemCode] = useState<string>("");
-  const [itemData, setItemData] = useState<any>(null);
-
   return (
-    <div className="container mx-auto p-6 space-y-6">
+    <div className="container mx-auto space-y-6 p-6">
       <div>
         <h1 className="text-3xl font-bold">EntitySearchInput 테스트</h1>
-        <p className="text-muted-foreground mt-2">
-          엔티티 검색 입력 컴포넌트 동작 테스트
-        </p>
+        <p className="text-muted-foreground mt-2">이 페이지는 빌드 에러로 인해 임시로 비활성화되었습니다.</p>
       </div>
 
-      {/* 거래처 검색 테스트 - 자동완성 방식 */}
       <Card>
         <CardHeader>
-          <CardTitle>거래처 검색 (자동완성 드롭다운 방식) ⭐ NEW</CardTitle>
-          <CardDescription>
-            타이핑하면 바로 드롭다운이 나타나는 방식 - 수주 등록에서 사용
-          </CardDescription>
+          <CardTitle>빌드 에러 수정 중</CardTitle>
+          <CardDescription>순환 참조 문제를 해결한 후 다시 활성화됩니다.</CardDescription>
         </CardHeader>
-        <CardContent className="space-y-4">
-          <div className="space-y-2">
-            <Label>거래처</Label>
-            <AutocompleteSearchInputComponent
-              tableName="customer_mng"
-              displayField="customer_name"
-              valueField="customer_code"
-              searchFields={["customer_name", "customer_code", "business_number"]}
-              placeholder="거래처명 입력하여 검색"
-              showAdditionalInfo
-              additionalFields={["customer_code", "address", "contact_phone"]}
-              value={customerCode}
-              onChange={(code, fullData) => {
-                setCustomerCode(code || "");
-                setCustomerData(fullData);
-              }}
-            />
-          </div>
-
-          {customerData && (
-            <div className="mt-4 p-4 bg-muted rounded-md">
-              <h3 className="font-semibold mb-2">선택된 거래처 정보:</h3>
-              <pre className="text-xs">
-                {JSON.stringify(customerData, null, 2)}
-              </pre>
-            </div>
-          )}
-        </CardContent>
-      </Card>
-
-      {/* 거래처 검색 테스트 - 모달 방식 */}
-      <Card>
-        <CardHeader>
-          <CardTitle>거래처 검색 (모달 방식)</CardTitle>
-          <CardDescription>
-            버튼 클릭 → 모달 열기 → 검색 및 선택 방식
-          </CardDescription>
-        </CardHeader>
-        <CardContent className="space-y-4">
-          <div className="space-y-2">
-            <Label>거래처</Label>
-            <EntitySearchInputComponent
-              tableName="customer_mng"
-              displayField="customer_name"
-              valueField="customer_code"
-              searchFields={["customer_name", "customer_code", "business_number"]}
-              mode="combo"
-              placeholder="거래처를 검색하세요"
-              modalTitle="거래처 검색 및 선택"
-              modalColumns={["customer_code", "customer_name", "address", "contact_phone"]}
-              showAdditionalInfo
-              additionalFields={["address", "contact_phone", "business_number"]}
-              value={customerCode}
-              onChange={(code, fullData) => {
-                setCustomerCode(code || "");
-                setCustomerData(fullData);
-              }}
-            />
-          </div>
-        </CardContent>
-      </Card>
-
-      {/* 품목 검색 테스트 */}
-      <Card>
-        <CardHeader>
-          <CardTitle>품목 검색 (Modal 모드)</CardTitle>
-          <CardDescription>
-            item_info 테이블에서 품목을 검색합니다
-          </CardDescription>
-        </CardHeader>
-        <CardContent className="space-y-4">
-          <div className="space-y-2">
-            <Label>품목</Label>
-            <EntitySearchInputComponent
-              tableName="item_info"
-              displayField="item_name"
-              valueField="id"
-              searchFields={["item_name", "id", "item_number"]}
-              mode="modal"
-              placeholder="품목 선택"
-              modalTitle="품목 검색"
-              modalColumns={["id", "item_name", "item_number", "unit", "selling_price"]}
-              showAdditionalInfo
-              additionalFields={["item_number", "unit", "selling_price"]}
-              value={itemCode}
-              onChange={(code, fullData) => {
-                setItemCode(code || "");
-                setItemData(fullData);
-              }}
-            />
-          </div>
-
-          {itemData && (
-            <div className="mt-4 p-4 bg-muted rounded-md">
-              <h3 className="font-semibold mb-2">선택된 품목 정보:</h3>
-              <pre className="text-xs">
-                {JSON.stringify(itemData, null, 2)}
-              </pre>
-            </div>
-          )}
+        <CardContent>
+          <p className="text-muted-foreground text-sm">
+            에러 메시지: ReferenceError: Cannot access &apos;h&apos; before initialization
+          </p>
         </CardContent>
       </Card>
     </div>
   );
 }
-
diff --git a/frontend/app/test-order-registration/page.tsx b/frontend/app/test-order-registration/page.tsx
index 689c5434..fe6a005f 100644
--- a/frontend/app/test-order-registration/page.tsx
+++ b/frontend/app/test-order-registration/page.tsx
@@ -1,87 +1,27 @@
 "use client";
 
-import React, { useState } from "react";
-import { OrderRegistrationModal } from "@/components/order/OrderRegistrationModal";
-import { Button } from "@/components/ui/button";
+import React from "react";
 import { Card, CardContent, CardDescription, CardHeader, CardTitle } from "@/components/ui/card";
 
 export default function TestOrderRegistrationPage() {
-  const [modalOpen, setModalOpen] = useState(false);
-
-  const handleSuccess = () => {
-    console.log("수주 등록 성공!");
-  };
-
   return (
-    <div className="container mx-auto p-6 space-y-6">
+    <div className="container mx-auto space-y-6 p-6">
       <div>
         <h1 className="text-3xl font-bold">수주 등록 테스트</h1>
-        <p className="text-muted-foreground mt-2">
-          EntitySearchInput + ModalRepeaterTable을 활용한 수주 등록 화면
-        </p>
+        <p className="text-muted-foreground mt-2">이 페이지는 빌드 에러로 인해 임시로 비활성화되었습니다.</p>
       </div>
 
       <Card>
         <CardHeader>
-          <CardTitle>수주 등록 모달</CardTitle>
-          <CardDescription>
-            모달 버튼을 클릭하여 수주 등록 화면을 테스트하세요
-          </CardDescription>
+          <CardTitle>빌드 에러 수정 중</CardTitle>
+          <CardDescription>ModalRepeaterTable 순환 참조 문제를 해결한 후 다시 활성화됩니다.</CardDescription>
         </CardHeader>
         <CardContent>
-          <Button onClick={() => setModalOpen(true)}>
-            수주 등록 모달 열기
-          </Button>
+          <p className="text-muted-foreground text-sm">
+            에러 메시지: ReferenceError: Cannot access &apos;h&apos; before initialization
+          </p>
         </CardContent>
       </Card>
-
-      <Card>
-        <CardHeader>
-          <CardTitle>구현된 기능</CardTitle>
-        </CardHeader>
-        <CardContent className="space-y-2 text-sm">
-          <div className="flex items-start gap-2">
-            <span className="text-primary">✓</span>
-            <span>EntitySearchInput: 거래처 검색 및 선택 (콤보 모드)</span>
-          </div>
-          <div className="flex items-start gap-2">
-            <span className="text-primary">✓</span>
-            <span>ModalRepeaterTable: 품목 검색 및 동적 추가</span>
-          </div>
-          <div className="flex items-start gap-2">
-            <span className="text-primary">✓</span>
-            <span>자동 계산: 수량 × 단가 = 금액</span>
-          </div>
-          <div className="flex items-start gap-2">
-            <span className="text-primary">✓</span>
-            <span>인라인 편집: 수량, 단가, 납품일, 비고 수정 가능</span>
-          </div>
-          <div className="flex items-start gap-2">
-            <span className="text-primary">✓</span>
-            <span>중복 방지: 이미 추가된 품목은 선택 불가</span>
-          </div>
-          <div className="flex items-start gap-2">
-            <span className="text-primary">✓</span>
-            <span>행 삭제: 추가된 품목 개별 삭제 가능</span>
-          </div>
-          <div className="flex items-start gap-2">
-            <span className="text-primary">✓</span>
-            <span>전체 금액 표시: 모든 품목 금액의 합계</span>
-          </div>
-          <div className="flex items-start gap-2">
-            <span className="text-primary">✓</span>
-            <span>입력 방식 전환: 거래처 우선 / 견대 방식 / 단가 방식</span>
-          </div>
-        </CardContent>
-      </Card>
-
-      {/* 수주 등록 모달 */}
-      <OrderRegistrationModal
-        open={modalOpen}
-        onOpenChange={setModalOpen}
-        onSuccess={handleSuccess}
-      />
     </div>
   );
 }
-
diff --git a/frontend/components/admin/dashboard/data-sources/MultiDatabaseConfig.tsx b/frontend/components/admin/dashboard/data-sources/MultiDatabaseConfig.tsx
index 9f5d21f3..b8eb31ef 100644
--- a/frontend/components/admin/dashboard/data-sources/MultiDatabaseConfig.tsx
+++ b/frontend/components/admin/dashboard/data-sources/MultiDatabaseConfig.tsx
@@ -199,14 +199,14 @@ export default function MultiDatabaseConfig({ dataSource, onChange, onTestResult
           onValueChange={(value: "current" | "external") => onChange({ connectionType: value })}
         >
           <div className="flex items-center space-x-2">
-            <RadioGroupItem value="current" id={"current-${dataSource.id}"} />
-            <Label htmlFor={"current-${dataSource.id}"} className="text-xs font-normal">
+            <RadioGroupItem value="current" id={`current-${dataSource.id}`} />
+            <Label htmlFor={`current-${dataSource.id}`} className="text-xs font-normal">
               현재 데이터베이스
             </Label>
           </div>
           <div className="flex items-center space-x-2">
-            <RadioGroupItem value="external" id={"external-${dataSource.id}"} />
-            <Label htmlFor={"external-${dataSource.id}"} className="text-xs font-normal">
+            <RadioGroupItem value="external" id={`external-${dataSource.id}`} />
+            <Label htmlFor={`external-${dataSource.id}`} className="text-xs font-normal">
               외부 데이터베이스
             </Label>
           </div>
@@ -216,7 +216,7 @@ export default function MultiDatabaseConfig({ dataSource, onChange, onTestResult
       {/* 외부 DB 선택 */}
       {dataSource.connectionType === "external" && (
         <div className="space-y-2">
-          <Label htmlFor={"external-conn-${dataSource.id}"} className="text-xs">
+          <Label htmlFor={`external-conn-${dataSource.id}`} className="text-xs">
             외부 데이터베이스 선택 *
           </Label>
           {loadingConnections ? (
@@ -246,7 +246,7 @@ export default function MultiDatabaseConfig({ dataSource, onChange, onTestResult
       {/* SQL 쿼리 */}
       <div className="space-y-2">
         <div className="flex items-center justify-between">
-          <Label htmlFor={"query-${dataSource.id}"} className="text-xs">
+          <Label htmlFor={`query-${dataSource.id}`} className="text-xs">
             SQL 쿼리 *
           </Label>
           <Select
@@ -313,7 +313,7 @@ ORDER BY 하위부서수 DESC`,
           </Select>
         </div>
         <Textarea
-          id={"query-${dataSource.id}"}
+          id={`query-${dataSource.id}`}
           value={dataSource.query || ""}
           onChange={(e) => onChange({ query: e.target.value })}
           placeholder="SELECT * FROM table_name WHERE ..."
@@ -340,6 +340,9 @@ ORDER BY 하위부서수 DESC`,
             <SelectItem value="arrow" className="text-xs">
               화살표
             </SelectItem>
+            <SelectItem value="truck" className="text-xs">
+              트럭
+            </SelectItem>
           </SelectContent>
         </Select>
         <p className="text-muted-foreground text-[10px]">지도에 표시할 마커의 모양을 선택합니다</p>
diff --git a/frontend/components/admin/dashboard/widgets/yard-3d/DigitalTwinEditor.tsx b/frontend/components/admin/dashboard/widgets/yard-3d/DigitalTwinEditor.tsx
index 83c90e70..88e844d3 100644
--- a/frontend/components/admin/dashboard/widgets/yard-3d/DigitalTwinEditor.tsx
+++ b/frontend/components/admin/dashboard/widgets/yard-3d/DigitalTwinEditor.tsx
@@ -2,10 +2,11 @@
 
 import { useState, useEffect, useMemo } from "react";
 import { Button } from "@/components/ui/button";
-import { ArrowLeft, Save, Loader2, Grid3x3, Move, Box, Package, Truck } from "lucide-react";
+import { ArrowLeft, Save, Loader2, Grid3x3, Move, Box, Package, Truck, Check } from "lucide-react";
 import { Input } from "@/components/ui/input";
 import { Label } from "@/components/ui/label";
 import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select";
+import { Accordion, AccordionContent, AccordionItem, AccordionTrigger } from "@/components/ui/accordion";
 import dynamic from "next/dynamic";
 import { useToast } from "@/hooks/use-toast";
 import type { PlacedObject, ToolType, Warehouse, Area, Location, ObjectType } from "@/types/digitalTwin";
@@ -17,9 +18,14 @@ import {
   updateLayout,
   getMaterialCounts,
   getMaterials,
+  getHierarchyData,
+  getChildrenData,
+  type HierarchyData,
 } from "@/lib/api/digitalTwin";
 import type { MaterialData } from "@/types/digitalTwin";
 import { ExternalDbConnectionAPI } from "@/lib/api/externalDbConnection";
+import HierarchyConfigPanel, { HierarchyConfig } from "./HierarchyConfigPanel";
+import { validateSpatialContainment, updateChildrenPositions, getAllDescendants } from "./spatialContainment";
 
 // 백엔드 DB 객체 타입 (snake_case)
 interface DbObject {
@@ -85,25 +91,49 @@ export default function DigitalTwinEditor({ layoutId, layoutName, onBack }: Digi
   const [materials, setMaterials] = useState<MaterialData[]>([]);
   const [loadingMaterials, setLoadingMaterials] = useState(false);
   const [showMaterialPanel, setShowMaterialPanel] = useState(false);
-  
-  // 테이블 매핑 관련 상태
+
+  // 동적 계층 구조 설정
+  const [hierarchyConfig, setHierarchyConfig] = useState<HierarchyConfig | null>(null);
   const [availableTables, setAvailableTables] = useState<string[]>([]);
   const [loadingTables, setLoadingTables] = useState(false);
-  const [selectedTables, setSelectedTables] = useState({
+
+  // 레거시: 테이블 매핑 (구 Area/Location 방식 호환용)
+  const [selectedTables, setSelectedTables] = useState<{
+    warehouse: string;
+    area: string;
+    location: string;
+    material: string;
+  }>({
     warehouse: "",
     area: "",
     location: "",
     material: "",
   });
-  const [tableColumns, setTableColumns] = useState<{ [key: string]: string[] }>({});
-  const [selectedColumns, setSelectedColumns] = useState({
+  const [tableColumns, setTableColumns] = useState<{
+    warehouse?: { name: string; code: string };
+    area?: { name: string; code: string; warehouseCode: string };
+    location?: { name: string; code: string; areaCode: string };
+  }>({});
+  const [selectedColumns, setSelectedColumns] = useState<{
+    warehouseKey: string;
+    warehouseName: string;
+    areaKey: string;
+    areaName: string;
+    areaWarehouseKey: string;
+    locationKey: string;
+    locationName: string;
+    locationAreaKey: string;
+    materialKey?: string;
+  }>({
     warehouseKey: "WAREKEY",
     warehouseName: "WARENAME",
     areaKey: "AREAKEY",
     areaName: "AREANAME",
+    areaWarehouseKey: "WAREKEY",
     locationKey: "LOCAKEY",
     locationName: "LOCANAME",
-    materialKey: "STKKEY",
+    locationAreaKey: "AREAKEY",
+    materialKey: "LOCAKEY",
   });
 
   // placedObjects를 YardPlacement 형식으로 변환 (useMemo로 최적화)
@@ -140,7 +170,10 @@ export default function DigitalTwinEditor({ layoutId, layoutName, onBack }: Digi
       try {
         const connections = await ExternalDbConnectionAPI.getConnections({ is_active: "Y" });
         console.log("🔍 외부 DB 연결 목록 (is_active=Y):", connections);
-        console.log("🔍 연결 ID들:", connections.map(c => c.id));
+        console.log(
+          "🔍 연결 ID들:",
+          connections.map((c) => c.id),
+        );
         setExternalDbConnections(
           connections.map((conn) => ({
             id: conn.id!,
@@ -166,7 +199,7 @@ export default function DigitalTwinEditor({ layoutId, layoutName, onBack }: Digi
   useEffect(() => {
     if (!selectedDbConnection) {
       setAvailableTables([]);
-      setSelectedTables({ warehouse: "", area: "", location: "", material: "" });
+      setSelectedTables({ warehouse: "", area: "", location: "", material: "" }); // warehouse는 HierarchyConfigPanel에서 관리
       return;
     }
 
@@ -196,6 +229,63 @@ export default function DigitalTwinEditor({ layoutId, layoutName, onBack }: Digi
     // eslint-disable-next-line react-hooks/exhaustive-deps
   }, [selectedDbConnection]);
 
+  // 동적 계층 구조 데이터 로드
+  useEffect(() => {
+    const loadHierarchy = async () => {
+      if (!selectedDbConnection || !hierarchyConfig) {
+        return;
+      }
+
+      // 필수 필드 검증: 창고가 선택되었는지 확인
+      if (!hierarchyConfig.warehouseKey) {
+        return;
+      }
+
+      // 레벨 설정 검증
+      if (!hierarchyConfig.levels || hierarchyConfig.levels.length === 0) {
+        return;
+      }
+
+      // 각 레벨의 필수 필드 검증
+      for (const level of hierarchyConfig.levels) {
+        if (!level.tableName || !level.keyColumn || !level.nameColumn) {
+          return;
+        }
+      }
+
+      try {
+        const response = await getHierarchyData(selectedDbConnection, hierarchyConfig);
+        if (response.success && response.data) {
+          const { warehouse, levels, materials } = response.data;
+
+          // 창고 데이터 설정
+          if (warehouse) {
+            setWarehouses(warehouse);
+          }
+
+          // 레벨 데이터 설정
+          // 기존 호환성을 위해 레벨 1 -> Area, 레벨 2 -> Location으로 매핑
+          // TODO: UI를 동적으로 생성하도록 개선 필요
+          const level1 = levels.find((l) => l.level === 1);
+          if (level1) {
+            setAvailableAreas(level1.data);
+          }
+
+          const level2 = levels.find((l) => l.level === 2);
+          if (level2) {
+            setAvailableLocations(level2.data);
+          }
+
+          console.log("계층 데이터 로드 완료:", response.data);
+        }
+      } catch (error) {
+        console.error("계층 데이터 로드 실패:", error);
+      }
+    };
+
+    loadHierarchy();
+  }, [selectedDbConnection, hierarchyConfig]);
+
   // 테이블 컬럼 로드
   const loadColumnsForTable = async (tableName: string, type: "warehouse" | "area" | "location" | "material") => {
     if (!selectedDbConnection || !tableName) return;
@@ -203,18 +293,18 @@ export default function DigitalTwinEditor({ layoutId, layoutName, onBack }: Digi
     try {
       const { getTablePreview } = await import("@/lib/api/digitalTwin");
       const response = await getTablePreview(selectedDbConnection, tableName);
-      
+
       console.log(`📊 ${type} 테이블 미리보기:`, response);
 
       if (response.success && response.data && response.data.length > 0) {
         const columns = Object.keys(response.data[0]);
-        setTableColumns(prev => ({ ...prev, [type]: columns }));
-        
+        setTableColumns((prev) => ({ ...prev, [type]: columns }));
+
         // 자동 매핑 시도 (기본값 설정)
         if (type === "warehouse") {
-          const keyCol = columns.find(c => c.includes("KEY") || c.includes("ID")) || columns[0];
-          const nameCol = columns.find(c => c.includes("NAME") || c.includes("NAM")) || columns[1] || columns[0];
-          setSelectedColumns(prev => ({ ...prev, warehouseKey: keyCol, warehouseName: nameCol }));
+          const keyCol = columns.find((c) => c.includes("KEY") || c.includes("ID")) || columns[0];
+          const nameCol = columns.find((c) => c.includes("NAME") || c.includes("NAM")) || columns[1] || columns[0];
+          setSelectedColumns((prev) => ({ ...prev, warehouseKey: keyCol, warehouseName: nameCol }));
         }
       } else {
         console.warn(`⚠️ ${tableName} 테이블에 데이터가 없습니다.`);
@@ -238,9 +328,12 @@ export default function DigitalTwinEditor({ layoutId, layoutName, onBack }: Digi
     }
 
     const loadWarehouses = async () => {
+      if (!hierarchyConfig?.warehouse?.tableName) {
+        return;
+      }
       try {
         setLoadingWarehouses(true);
-        const response = await getWarehouses(selectedDbConnection, selectedTables.warehouse);
+        const response = await getWarehouses(selectedDbConnection, hierarchyConfig.warehouse.tableName);
         console.log("📦 창고 API 응답:", response);
         if (response.success && response.data) {
           console.log("📦 창고 데이터:", response.data);
@@ -279,7 +372,7 @@ export default function DigitalTwinEditor({ layoutId, layoutName, onBack }: Digi
 
     loadWarehouses();
     // eslint-disable-next-line react-hooks/exhaustive-deps
-  }, [selectedDbConnection, selectedTables.warehouse]); // toast 제거, warehouse 테이블 추가
+  }, [selectedDbConnection, hierarchyConfig?.warehouse?.tableName]); // hierarchyConfig.warehouse.tableName 추가
 
   // 창고 선택 시 Area 목록 로드
   useEffect(() => {
@@ -288,6 +381,12 @@ export default function DigitalTwinEditor({ layoutId, layoutName, onBack }: Digi
       return;
     }
 
+    // Area 테이블명이 설정되지 않으면 API 호출 스킵
+    if (!selectedTables.area) {
+      setAvailableAreas([]);
+      return;
+    }
+
     const loadAreas = async () => {
       try {
         setLoadingAreas(true);
@@ -324,6 +423,51 @@ export default function DigitalTwinEditor({ layoutId, layoutName, onBack }: Digi
           const { layout, objects } = response.data;
           setLayoutData({ layout, objects }); // 레이아웃 데이터 저장
 
+          // 외부 DB 연결 ID 복원
+          if (layout.external_db_connection_id) {
+            setSelectedDbConnection(layout.external_db_connection_id);
+          }
+
+          // 계층 구조 설정 로드
+          if (layout.hierarchy_config) {
+            try {
+              // hierarchy_config가 문자열이면 파싱, 객체면 그대로 사용
+              const config =
+                typeof layout.hierarchy_config === "string"
+                  ? JSON.parse(layout.hierarchy_config)
+                  : layout.hierarchy_config;
+              setHierarchyConfig(config);
+
+              // 선택된 테이블 정보도 복원
+              const newSelectedTables: any = {
+                warehouse: config.warehouse?.tableName || "",
+                area: "",
+                location: "",
+                material: "",
+              };
+
+              if (config.levels && config.levels.length > 0) {
+                // 레벨 1 = Area
+                if (config.levels[0]?.tableName) {
+                  newSelectedTables.area = config.levels[0].tableName;
+                }
+                // 레벨 2 = Location
+                if (config.levels[1]?.tableName) {
+                  newSelectedTables.location = config.levels[1].tableName;
+                }
+              }
+
+              // 자재 테이블 정보
+              if (config.material?.tableName) {
+                newSelectedTables.material = config.material.tableName;
+              }
+
+              setSelectedTables(newSelectedTables);
+            } catch (e) {
+              console.error("계층 구조 설정 파싱 실패:", e);
+            }
+          }
+
           // 객체 데이터 변환 (DB -> PlacedObject)
           const loadedObjects: PlacedObject[] = (objects as unknown as DbObject[]).map((obj) => ({
             id: obj.id,
@@ -352,6 +496,9 @@ export default function DigitalTwinEditor({ layoutId, layoutName, onBack }: Digi
             displayOrder: obj.display_order,
             locked: obj.locked,
             visible: obj.visible !== false,
+            hierarchyLevel: obj.hierarchy_level || 1,
+            parentKey: obj.parent_key,
+            externalKey: obj.external_key,
           }));
 
           setPlacedObjects(loadedObjects);
@@ -404,29 +551,37 @@ export default function DigitalTwinEditor({ layoutId, layoutName, onBack }: Digi
 
   // 외부 DB 연결 자동 선택 (externalDbConnections 로드 완료 시)
   useEffect(() => {
-    if (!layoutData || !layoutData.layout.externalDbConnectionId || externalDbConnections.length === 0) {
+    console.log("🔍 useEffect 실행:", {
+      layoutData: !!layoutData,
+      external_db_connection_id: layoutData?.layout?.external_db_connection_id,
+      externalDbConnections: externalDbConnections.length,
+    });
+
+    if (!layoutData || !layoutData.layout.external_db_connection_id || externalDbConnections.length === 0) {
+      console.log("🔍 조건 미충족으로 종료");
       return;
     }
 
     const layout = layoutData.layout;
     console.log("🔍 외부 DB 연결 자동 선택 시도");
-    console.log("🔍 레이아웃의 externalDbConnectionId:", layout.externalDbConnectionId);
+    console.log("🔍 레이아웃의 external_db_connection_id:", layout.external_db_connection_id);
     console.log("🔍 사용 가능한 연결 목록:", externalDbConnections);
 
-    const connectionExists = externalDbConnections.some(
-      (conn) => conn.id === layout.externalDbConnectionId,
-    );
+    const connectionExists = externalDbConnections.some((conn) => conn.id === layout.external_db_connection_id);
     console.log("🔍 연결 존재 여부:", connectionExists);
 
     if (connectionExists) {
-      setSelectedDbConnection(layout.externalDbConnectionId);
-      if (layout.warehouseKey) {
-        setSelectedWarehouse(layout.warehouseKey);
+      setSelectedDbConnection(layout.external_db_connection_id);
+      if (layout.warehouse_key) {
+        setSelectedWarehouse(layout.warehouse_key);
       }
-      console.log("✅ 외부 DB 연결 자동 선택 완료:", layout.externalDbConnectionId);
+      console.log("✅ 외부 DB 연결 자동 선택 완료:", layout.external_db_connection_id);
     } else {
-      console.warn("⚠️ 저장된 외부 DB 연결을 찾을 수 없습니다:", layout.externalDbConnectionId);
-      console.warn("⚠️ 사용 가능한 연결 ID들:", externalDbConnections.map(c => c.id));
+      console.warn("⚠️ 저장된 외부 DB 연결을 찾을 수 없습니다:", layout.external_db_connection_id);
+      console.warn(
+        "⚠️ 사용 가능한 연결 ID들:",
+        externalDbConnections.map((c) => c.id),
+      );
       toast({
         variant: "destructive",
         title: "외부 DB 연결 오류",
@@ -514,10 +669,16 @@ export default function DigitalTwinEditor({ layoutId, layoutName, onBack }: Digi
     let areaKey: string | undefined = undefined;
     let locaKey: string | undefined = undefined;
     let locType: string | undefined = undefined;
+    let hierarchyLevel = 1;
+    let parentKey: string | undefined = undefined;
+    let externalKey: string | undefined = undefined;
 
     if (draggedTool === "area" && draggedAreaData) {
       objectName = draggedAreaData.AREANAME;
       areaKey = draggedAreaData.AREAKEY;
+      // 계층 정보 설정 (예: Area는 레벨 1)
+      hierarchyLevel = 1;
+      externalKey = draggedAreaData.AREAKEY;
     } else if (
       (draggedTool === "location-bed" ||
         draggedTool === "location-stp" ||
@@ -529,6 +690,10 @@ export default function DigitalTwinEditor({ layoutId, layoutName, onBack }: Digi
       areaKey = draggedLocationData.AREAKEY;
       locaKey = draggedLocationData.LOCAKEY;
       locType = draggedLocationData.LOCTYPE;
+      // 계층 정보 설정 (예: Location은 레벨 2)
+      hierarchyLevel = 2;
+      parentKey = draggedLocationData.AREAKEY;
+      externalKey = draggedLocationData.LOCAKEY;
     }
 
     const newObject: PlacedObject = {
@@ -541,8 +706,45 @@ export default function DigitalTwinEditor({ layoutId, layoutName, onBack }: Digi
       areaKey,
       locaKey,
       locType,
+      hierarchyLevel,
+      parentKey,
+      externalKey,
     };
 
+    // 공간적 종속성 검증
+    if (hierarchyConfig && hierarchyLevel > 1) {
+      const validation = validateSpatialContainment(
+        {
+          id: newObject.id,
+          position: newObject.position,
+          size: newObject.size,
+          hierarchyLevel: newObject.hierarchyLevel || 1,
+          parentId: newObject.parentId,
+        },
+        placedObjects.map((obj) => ({
+          id: obj.id,
+          position: obj.position,
+          size: obj.size,
+          hierarchyLevel: obj.hierarchyLevel || 1,
+          parentId: obj.parentId,
+        })),
+      );
+
+      if (!validation.valid) {
+        toast({
+          variant: "destructive",
+          title: "배치 오류",
+          description: "하위 영역은 반드시 상위 영역 내부에 배치되어야 합니다.",
+        });
+        return;
+      }
+
+      // 부모 ID 설정
+      if (validation.parent) {
+        newObject.parentId = validation.parent.id;
+      }
+    }
+
     setPlacedObjects((prev) => [...prev, newObject]);
     setSelectedObject(newObject);
     setNextObjectId((prev) => prev - 1);
@@ -561,22 +763,38 @@ export default function DigitalTwinEditor({ layoutId, layoutName, onBack }: Digi
     ) {
       // 새 객체 추가 후 자재 개수 로드 (약간의 딜레이를 두어 state 업데이트 완료 후 실행)
       setTimeout(() => {
-        loadMaterialCountsForLocations();
+        loadMaterialCountsForLocations([locaKey!]);
       }, 100);
     }
   };
 
   // Location의 자재 목록 로드
   const loadMaterialsForLocation = async (locaKey: string) => {
-    if (!selectedDbConnection) return;
+    if (!selectedDbConnection || !hierarchyConfig?.material) {
+      toast({
+        variant: "destructive",
+        title: "자재 조회 실패",
+        description: "자재 테이블 설정이 필요합니다.",
+      });
+      return;
+    }
 
     try {
       setLoadingMaterials(true);
       setShowMaterialPanel(true);
-      const response = await getMaterials(selectedDbConnection, selectedTables.material, locaKey);
+      const response = await getMaterials(selectedDbConnection, {
+        ...hierarchyConfig.material,
+        locaKey: locaKey,
+      });
       if (response.success && response.data) {
-        // LOLAYER 순으로 정렬
-        const sortedMaterials = response.data.sort((a, b) => a.LOLAYER - b.LOLAYER);
+        // layerColumn이 있으면 정렬
+        const sortedMaterials = hierarchyConfig.material.layerColumn
+          ? response.data.sort((a: any, b: any) => {
+              const aLayer = a[hierarchyConfig.material!.layerColumn!] || 0;
+              const bLayer = b[hierarchyConfig.material!.layerColumn!] || 0;
+              return aLayer - bLayer;
+            })
+          : response.data;
         setMaterials(sortedMaterials);
       } else {
         setMaterials([]);
@@ -688,20 +906,60 @@ export default function DigitalTwinEditor({ layoutId, layoutName, onBack }: Digi
 
   // 객체 이동
   const handleObjectMove = (objectId: number, newX: number, newZ: number, newY?: number) => {
-    // Yard3DCanvas에서 이미 스냅+오프셋이 완료된 좌표를 받음
-    // 그대로 저장하면 됨
-    setPlacedObjects((prev) =>
-      prev.map((obj) => {
+    setPlacedObjects((prev) => {
+      const targetObj = prev.find((obj) => obj.id === objectId);
+      if (!targetObj) return prev;
+
+      const oldPosition = targetObj.position;
+      const newPosition = {
+        x: newX,
+        y: newY !== undefined ? newY : oldPosition.y,
+        z: newZ,
+      };
+
+      // 1. 이동 대상 객체 업데이트
+      let updatedObjects = prev.map((obj) => {
         if (obj.id === objectId) {
-          const newPosition = { ...obj.position, x: newX, z: newZ };
-          if (newY !== undefined) {
-            newPosition.y = newY;
-          }
           return { ...obj, position: newPosition };
         }
         return obj;
-      }),
-    );
+      });
+
+      // 2. 그룹 이동: 자식 객체들도 함께 이동
+      const spatialObjects = updatedObjects.map((obj) => ({
+        id: obj.id,
+        position: obj.position,
+        size: obj.size,
+        hierarchyLevel: obj.hierarchyLevel || 1,
+        parentId: obj.parentId,
+      }));
+
+      const descendants = getAllDescendants(objectId, spatialObjects);
+
+      if (descendants.length > 0) {
+        const delta = {
+          x: newPosition.x - oldPosition.x,
+          y: newPosition.y - oldPosition.y,
+          z: newPosition.z - oldPosition.z,
+        };
+
+        updatedObjects = updatedObjects.map((obj) => {
+          if (descendants.some((d) => d.id === obj.id)) {
+            return {
+              ...obj,
+              position: {
+                x: obj.position.x + delta.x,
+                y: obj.position.y + delta.y,
+                z: obj.position.z + delta.z,
+              },
+            };
+          }
+          return obj;
+        });
+      }
+
+      return updatedObjects;
+    });
 
     if (selectedObject?.id === objectId) {
       setSelectedObject((prev) => {
@@ -803,6 +1061,9 @@ export default function DigitalTwinEditor({ layoutId, layoutName, onBack }: Digi
       const response = await updateLayout(layoutId, {
         layoutName: layoutName,
         description: undefined,
+        hierarchyConfig: hierarchyConfig, // 계층 구조 설정
+        externalDbConnectionId: selectedDbConnection, // 외부 DB 연결 ID
+        warehouseKey: selectedWarehouse, // 선택된 창고
         objects: placedObjects.map((obj, index) => ({
           ...obj,
           displayOrder: index, // 현재 순서대로 저장
@@ -935,7 +1196,7 @@ export default function DigitalTwinEditor({ layoutId, layoutName, onBack }: Digi
         {/* 좌측: 외부 DB 선택 + 객체 목록 */}
         <div className="flex h-full w-[20%] flex-col border-r">
           {/* 스크롤 영역 */}
-          <div className="flex-1 overflow-y-auto p-4 space-y-6">
+          <div className="flex-1 space-y-6 overflow-y-auto p-4">
             {/* 외부 DB 선택 */}
             <div>
               <Label className="mb-2 block text-sm font-semibold">외부 데이터베이스</Label>
@@ -960,183 +1221,110 @@ export default function DigitalTwinEditor({ layoutId, layoutName, onBack }: Digi
               </Select>
             </div>
 
-            {/* 테이블 매핑 선택 */}
+            {/* 창고 테이블 및 컬럼 매핑 */}
             {selectedDbConnection && (
               <div className="space-y-3">
-                <Label className="text-sm font-semibold">테이블 매핑 설정</Label>
-                {loadingTables ? (
-                  <div className="flex h-20 items-center justify-center">
-                    <Loader2 className="text-muted-foreground h-4 w-4 animate-spin" />
-                  </div>
-                ) : (
-                  <>
-                    <div>
-                      <Label className="text-muted-foreground mb-1 block text-xs">창고 테이블</Label>
-                      <Select
-                        value={selectedTables.warehouse}
-                        onValueChange={(value) => {
-                          setSelectedTables({ ...selectedTables, warehouse: value });
-                          loadColumnsForTable(value, "warehouse");
-                          setHasUnsavedChanges(true);
-                        }}
-                      >
-                        <SelectTrigger className="h-9 text-xs">
-                          <SelectValue placeholder="테이블 선택..." />
-                        </SelectTrigger>
-                        <SelectContent>
-                          {availableTables.map((table) => (
-                            <SelectItem key={table} value={table} className="text-xs">
-                              {table}
-                            </SelectItem>
-                          ))}
-                        </SelectContent>
-                      </Select>
-                    </div>
+                <Label className="text-sm font-semibold">창고 선택</Label>
 
-                    {/* 창고 컬럼 매핑 */}
-                    {selectedTables.warehouse && tableColumns.warehouse && (
-                      <div className="ml-2 space-y-2 border-l-2 pl-2">
-                        <div>
-                          <Label className="text-muted-foreground mb-1 block text-[10px]">ID 컬럼</Label>
-                          <Select
-                            value={selectedColumns.warehouseKey}
-                            onValueChange={(value) => setSelectedColumns({ ...selectedColumns, warehouseKey: value })}
-                          >
-                            <SelectTrigger className="h-7 text-[10px]">
-                              <SelectValue />
-                            </SelectTrigger>
-                            <SelectContent>
-                              {tableColumns.warehouse.map((col) => (
-                                <SelectItem key={col} value={col} className="text-xs">{col}</SelectItem>
-                              ))}
-                            </SelectContent>
-                          </Select>
-                        </div>
-                        <div>
-                          <Label className="text-muted-foreground mb-1 block text-[10px]">이름 컬럼</Label>
-                          <Select
-                            value={selectedColumns.warehouseName}
-                            onValueChange={(value) => setSelectedColumns({ ...selectedColumns, warehouseName: value })}
-                          >
-                            <SelectTrigger className="h-7 text-[10px]">
-                              <SelectValue />
-                            </SelectTrigger>
-                            <SelectContent>
-                              {tableColumns.warehouse.map((col) => (
-                                <SelectItem key={col} value={col} className="text-xs">{col}</SelectItem>
-                              ))}
-                            </SelectContent>
-                          </Select>
-                        </div>
+                {/* 이 레이아웃의 창고 선택 */}
+                {hierarchyConfig?.warehouse?.tableName && hierarchyConfig?.warehouse?.keyColumn && (
+                  <div>
+                    <Label className="text-muted-foreground mb-1 block text-xs">이 레이아웃의 창고</Label>
+                    {loadingWarehouses ? (
+                      <div className="flex h-9 items-center justify-center rounded-md border">
+                        <Loader2 className="text-muted-foreground h-4 w-4 animate-spin" />
                       </div>
+                    ) : (
+                      <Select
+                        value={selectedWarehouse || ""}
+                        onValueChange={(value) => {
+                          setSelectedWarehouse(value);
+                          // hierarchyConfig 업데이트 (없으면 새로 생성)
+                          setHierarchyConfig((prev) => ({
+                            warehouseKey: value,
+                            levels: prev?.levels || [],
+                            material: prev?.material,
+                          }));
+                          setHasUnsavedChanges(true);
+                        }}
+                      >
+                        <SelectTrigger className="h-9 text-xs">
+                          <SelectValue placeholder="창고 선택..." />
+                        </SelectTrigger>
+                        <SelectContent>
+                          {warehouses.map((wh: any) => {
+                            const keyCol = hierarchyConfig.warehouse!.keyColumn;
+                            const nameCol = hierarchyConfig.warehouse!.nameColumn;
+                            return (
+                              <SelectItem key={wh[keyCol]} value={wh[keyCol]} className="text-xs">
+                                {wh[nameCol] || wh[keyCol]}
+                              </SelectItem>
+                            );
+                          })}
+                        </SelectContent>
+                      </Select>
                     )}
-
-                    <div>
-                      <Label className="text-muted-foreground mb-1 block text-xs">상위 영역 테이블 (예: Area)</Label>
-                      <Select
-                        value={selectedTables.area}
-                        onValueChange={(value) => {
-                          setSelectedTables({ ...selectedTables, area: value });
-                          loadColumnsForTable(value, "area");
-                          setHasUnsavedChanges(true);
-                        }}
-                      >
-                        <SelectTrigger className="h-9 text-xs">
-                          <SelectValue placeholder="테이블 선택..." />
-                        </SelectTrigger>
-                        <SelectContent>
-                          {availableTables.map((table) => (
-                            <SelectItem key={table} value={table} className="text-xs">
-                              {table}
-                            </SelectItem>
-                          ))}
-                        </SelectContent>
-                      </Select>
-                    </div>
-
-                    <div>
-                      <Label className="text-muted-foreground mb-1 block text-xs">하위 영역 테이블 (예: Location)</Label>
-                      <Select
-                        value={selectedTables.location}
-                        onValueChange={(value) => {
-                          setSelectedTables({ ...selectedTables, location: value });
-                          loadColumnsForTable(value, "location");
-                          setHasUnsavedChanges(true);
-                        }}
-                      >
-                        <SelectTrigger className="h-9 text-xs">
-                          <SelectValue placeholder="테이블 선택..." />
-                        </SelectTrigger>
-                        <SelectContent>
-                          {availableTables.map((table) => (
-                            <SelectItem key={table} value={table} className="text-xs">
-                              {table}
-                            </SelectItem>
-                          ))}
-                        </SelectContent>
-                      </Select>
-                    </div>
-
-                    <div>
-                      <Label className="text-muted-foreground mb-1 block text-xs">자재 테이블</Label>
-                      <Select
-                        value={selectedTables.material}
-                        onValueChange={(value) => {
-                          setSelectedTables({ ...selectedTables, material: value });
-                          loadColumnsForTable(value, "material");
-                          setHasUnsavedChanges(true);
-                        }}
-                      >
-                        <SelectTrigger className="h-9 text-xs">
-                          <SelectValue placeholder="테이블 선택..." />
-                        </SelectTrigger>
-                        <SelectContent>
-                          {availableTables.map((table) => (
-                            <SelectItem key={table} value={table} className="text-xs">
-                              {table}
-                            </SelectItem>
-                          ))}
-                        </SelectContent>
-                      </Select>
-                    </div>
-                  </>
+                  </div>
                 )}
               </div>
             )}
 
-            {/* 창고 선택 */}
-            {selectedDbConnection && selectedTables.warehouse && (
-              <div>
-                <Label className="mb-2 block text-sm font-semibold">창고</Label>
-                {loadingWarehouses ? (
-                  <div className="flex h-10 items-center justify-center">
-                    <Loader2 className="text-muted-foreground h-4 w-4 animate-spin" />
-                  </div>
-                ) : (
-                  <Select
-                    value={selectedWarehouse || ""}
-                    onValueChange={(value) => {
-                      setSelectedWarehouse(value);
-                      setHasUnsavedChanges(true);
-                    }}
-                  >
-                    <SelectTrigger className="h-10 text-sm">
-                      <SelectValue placeholder="창고 선택..." />
-                    </SelectTrigger>
-                    <SelectContent>
-                      {warehouses.map((wh: any) => (
-                        <SelectItem 
-                          key={wh[selectedColumns.warehouseKey] || wh.WAREKEY} 
-                          value={wh[selectedColumns.warehouseKey] || wh.WAREKEY} 
-                          className="text-sm"
-                        >
-                          {wh[selectedColumns.warehouseName] || wh.WARENAME || wh[selectedColumns.warehouseKey] || wh.WAREKEY}
-                        </SelectItem>
-                      ))}
-                    </SelectContent>
-                  </Select>
-                )}
-              </div>
+            {/* 계층 설정 패널 (신규) */}
+            {selectedDbConnection && (
+              <HierarchyConfigPanel
+                externalDbConnectionId={selectedDbConnection}
+                hierarchyConfig={hierarchyConfig}
+                onHierarchyConfigChange={(config) => {
+                  // 새로운 객체로 생성하여 참조 변경 (useEffect 트리거를 위해)
+                  setHierarchyConfig({ ...config });
+
+                  // 레벨 테이블 정보를 selectedTables와 동기화
+                  const newSelectedTables: any = { ...selectedTables };
+
+                  // 창고 테이블 정보
+                  if (config.warehouse?.tableName) {
+                    newSelectedTables.warehouse = config.warehouse.tableName;
+                  }
+
+                  if (config.levels && config.levels.length > 0) {
+                    // 레벨 1 = Area
+                    if (config.levels[0]?.tableName) {
+                      newSelectedTables.area = config.levels[0].tableName;
+                    }
+                    // 레벨 2 = Location
+                    if (config.levels[1]?.tableName) {
+                      newSelectedTables.location = config.levels[1].tableName;
+                    }
+                  }
+
+                  // 자재 테이블 정보
+                  if (config.material?.tableName) {
+                    newSelectedTables.material = config.material.tableName;
+                  }
+
+                  setSelectedTables(newSelectedTables);
+                  setHasUnsavedChanges(true);
+                }}
+                availableTables={availableTables}
+                onLoadTables={async () => {
+                  // 이미 로드되어 있으므로 스킵
+                }}
+                onLoadColumns={async (tableName: string) => {
+                  try {
+                    const response = await ExternalDbConnectionAPI.getTableColumns(selectedDbConnection, tableName);
+                    if (response.success && response.data) {
+                      // 객체 배열을 문자열 배열로 변환
+                      return response.data.map((col: any) =>
+                        typeof col === "string" ? col : col.column_name || col.COLUMN_NAME || String(col),
+                      );
+                    }
+                    return [];
+                  } catch (error) {
+                    console.error("컬럼 로드 실패:", error);
+                    return [];
+                  }
+                }}
+              />
             )}
 
             {/* Area 목록 */}
@@ -1151,29 +1339,43 @@ export default function DigitalTwinEditor({ layoutId, layoutName, onBack }: Digi
                   <p className="text-muted-foreground text-xs">Area가 없습니다</p>
                 ) : (
                   <div className="space-y-2">
-                    {availableAreas.map((area) => (
-                      <div
-                        key={area.AREAKEY}
-                        draggable
-                        onDragStart={() => {
-                          // Area 정보를 임시 저장
-                          setDraggedTool("area");
-                          setDraggedAreaData(area);
-                        }}
-                        onDragEnd={() => {
-                          setDraggedAreaData(null);
-                        }}
-                        className="bg-background hover:bg-accent cursor-grab rounded-lg border p-3 transition-all active:cursor-grabbing"
-                      >
-                        <div className="flex items-center justify-between">
-                          <div className="flex-1">
-                            <p className="text-sm font-medium">{area.AREANAME}</p>
-                            <p className="text-muted-foreground text-xs">{area.AREAKEY}</p>
+                    {availableAreas.map((area) => {
+                      // 이미 배치된 Area인지 확인
+                      const isPlaced = placedObjects.some((obj) => obj.areaKey === area.AREAKEY);
+
+                      return (
+                        <div
+                          key={area.AREAKEY}
+                          draggable={!isPlaced}
+                          onDragStart={() => {
+                            if (isPlaced) return;
+                            // Area 정보를 임시 저장
+                            setDraggedTool("area");
+                            setDraggedAreaData(area);
+                          }}
+                          onDragEnd={() => {
+                            setDraggedAreaData(null);
+                          }}
+                          className={`rounded-lg border p-3 transition-all ${
+                            isPlaced
+                              ? "bg-muted text-muted-foreground cursor-not-allowed opacity-60"
+                              : "bg-background hover:bg-accent cursor-grab active:cursor-grabbing"
+                          }`}
+                        >
+                          <div className="flex items-center justify-between">
+                            <div className="flex-1">
+                              <p className="text-sm font-medium">{area.AREANAME}</p>
+                              <p className="text-muted-foreground text-xs">{area.AREAKEY}</p>
+                            </div>
+                            {isPlaced ? (
+                              <span className="text-muted-foreground text-xs">배치됨</span>
+                            ) : (
+                              <Grid3x3 className="text-muted-foreground h-4 w-4" />
+                            )}
                           </div>
-                          <Grid3x3 className="text-muted-foreground h-4 w-4" />
                         </div>
-                      </div>
-                    ))}
+                      );
+                    })}
                   </div>
                 )}
               </div>
@@ -1199,19 +1401,34 @@ export default function DigitalTwinEditor({ layoutId, layoutName, onBack }: Digi
                       locationType = "location-dest";
                     }
 
+                    // Location이 이미 배치되었는지 확인
+                    const isLocationPlaced = placedObjects.some(
+                      (obj) =>
+                        (obj.type === "location-bed" ||
+                          obj.type === "location-stp" ||
+                          obj.type === "location-temp" ||
+                          obj.type === "location-dest") &&
+                        obj.locaKey === location.LOCAKEY,
+                    );
+
                     return (
                       <div
                         key={location.LOCAKEY}
-                        draggable
+                        draggable={!isLocationPlaced}
                         onDragStart={() => {
-                          // Location 정보를 임시 저장
-                          setDraggedTool(locationType);
-                          setDraggedLocationData(location);
+                          if (!isLocationPlaced) {
+                            setDraggedTool(locationType);
+                            setDraggedLocationData(location);
+                          }
                         }}
                         onDragEnd={() => {
                           setDraggedLocationData(null);
                         }}
-                        className="bg-background hover:bg-accent cursor-grab rounded-lg border p-3 transition-all active:cursor-grabbing"
+                        className={`rounded-lg border p-3 transition-all ${
+                          isLocationPlaced
+                            ? "bg-muted text-muted-foreground cursor-not-allowed opacity-60"
+                            : "bg-background hover:bg-accent cursor-grab active:cursor-grabbing"
+                        }`}
                       >
                         <div className="flex items-center justify-between">
                           <div className="flex-1">
@@ -1221,7 +1438,11 @@ export default function DigitalTwinEditor({ layoutId, layoutName, onBack }: Digi
                               <span className="bg-muted rounded px-1.5 py-0.5">{location.LOCTYPE}</span>
                             </div>
                           </div>
-                          <Package className="text-muted-foreground h-4 w-4" />
+                          {isLocationPlaced ? (
+                            <Check className="h-4 w-4 text-green-500" />
+                          ) : (
+                            <Package className="text-muted-foreground h-4 w-4" />
+                          )}
                         </div>
                       </div>
                     );
@@ -1331,48 +1552,45 @@ export default function DigitalTwinEditor({ layoutId, layoutName, onBack }: Digi
                   자재가 없습니다
                 </div>
               ) : (
-                <div className="space-y-2">
-                  {materials.map((material, index) => (
-                    <div
-                      key={`${material.STKKEY}-${index}`}
-                      className="bg-muted hover:bg-accent rounded-lg border p-3 transition-colors"
-                    >
-                      <div className="mb-2 flex items-start justify-between">
-                        <div className="flex-1">
-                          <p className="text-sm font-medium">{material.STKKEY}</p>
-                          <p className="text-muted-foreground mt-0.5 text-xs">
-                            층: {material.LOLAYER} | Area: {material.AREAKEY}
-                          </p>
-                        </div>
-                      </div>
-                      <div className="text-muted-foreground grid grid-cols-2 gap-2 text-xs">
-                        {material.STKWIDT && (
-                          <div>
-                            폭: <span className="font-medium">{material.STKWIDT}</span>
+                <Accordion type="single" collapsible className="w-full">
+                  {materials.map((material, index) => {
+                    const layerColumn = hierarchyConfig?.material?.layerColumn || "LOLAYER";
+                    const keyColumn = hierarchyConfig?.material?.keyColumn || "STKKEY";
+                    const displayColumns = hierarchyConfig?.material?.displayColumns || [];
+
+                    const layerValue = material[layerColumn] || index + 1;
+                    const keyValue = material[keyColumn] || `자재 ${index + 1}`;
+
+                    return (
+                      <AccordionItem key={`${keyValue}-${index}`} value={`item-${index}`} className="border-b">
+                        <AccordionTrigger className="px-2 py-3 hover:no-underline">
+                          <div className="flex w-full items-center justify-between pr-2">
+                            <span className="text-sm font-medium">층 {layerValue}</span>
+                            <span className="text-muted-foreground max-w-[150px] truncate text-xs">{keyValue}</span>
                           </div>
-                        )}
-                        {material.STKLENG && (
-                          <div>
-                            길이: <span className="font-medium">{material.STKLENG}</span>
-                          </div>
-                        )}
-                        {material.STKHEIG && (
-                          <div>
-                            높이: <span className="font-medium">{material.STKHEIG}</span>
-                          </div>
-                        )}
-                        {material.STKWEIG && (
-                          <div>
-                            무게: <span className="font-medium">{material.STKWEIG}</span>
-                          </div>
-                        )}
-                      </div>
-                      {material.STKRMKS && (
-                        <p className="text-muted-foreground mt-2 text-xs italic">{material.STKRMKS}</p>
-                      )}
-                    </div>
-                  ))}
-                </div>
+                        </AccordionTrigger>
+                        <AccordionContent className="px-2 pb-3">
+                          {displayColumns.length === 0 ? (
+                            <p className="text-muted-foreground py-2 text-center text-xs">
+                              표시할 컬럼이 설정되지 않았습니다
+                            </p>
+                          ) : (
+                            <div className="space-y-1.5">
+                              {displayColumns.map((item) => (
+                                <div key={item.column} className="flex justify-between gap-2 text-xs">
+                                  <span className="text-muted-foreground shrink-0">{item.label}:</span>
+                                  <span className="text-right font-medium break-all">
+                                    {material[item.column] || "-"}
+                                  </span>
+                                </div>
+                              ))}
+                            </div>
+                          )}
+                        </AccordionContent>
+                      </AccordionItem>
+                    );
+                  })}
+                </Accordion>
               )}
             </div>
           ) : selectedObject ? (
diff --git a/frontend/components/admin/dashboard/widgets/yard-3d/DigitalTwinViewer.tsx b/frontend/components/admin/dashboard/widgets/yard-3d/DigitalTwinViewer.tsx
index d8162e31..3945a692 100644
--- a/frontend/components/admin/dashboard/widgets/yard-3d/DigitalTwinViewer.tsx
+++ b/frontend/components/admin/dashboard/widgets/yard-3d/DigitalTwinViewer.tsx
@@ -34,7 +34,8 @@ export default function DigitalTwinViewer({ layoutId }: DigitalTwinViewerProps)
   const [showInfoPanel, setShowInfoPanel] = useState(false);
   const [externalDbConnectionId, setExternalDbConnectionId] = useState<number | null>(null);
   const [layoutName, setLayoutName] = useState<string>("");
-  
+  const [hierarchyConfig, setHierarchyConfig] = useState<any>(null);
+
   // 검색 및 필터
   const [searchQuery, setSearchQuery] = useState("");
   const [filterType, setFilterType] = useState<string>("all");
@@ -49,39 +50,51 @@ export default function DigitalTwinViewer({ layoutId }: DigitalTwinViewerProps)
         if (response.success && response.data) {
           const { layout, objects } = response.data;
 
-          // 레이아웃 정보 저장
-          setLayoutName(layout.layoutName);
-          setExternalDbConnectionId(layout.externalDbConnectionId);
+          // 레이아웃 정보 저장 (snake_case와 camelCase 모두 지원)
+          setLayoutName(layout.layout_name || layout.layoutName);
+          setExternalDbConnectionId(layout.external_db_connection_id || layout.externalDbConnectionId);
+
+          // hierarchy_config 저장
+          if (layout.hierarchy_config) {
+            const config =
+              typeof layout.hierarchy_config === "string"
+                ? JSON.parse(layout.hierarchy_config)
+                : layout.hierarchy_config;
+            setHierarchyConfig(config);
+          }
 
           // 객체 데이터 변환
-          const loadedObjects: PlacedObject[] = objects.map((obj: any) => ({
-            id: obj.id,
-            type: obj.object_type,
-            name: obj.object_name,
-            position: {
-              x: parseFloat(obj.position_x),
-              y: parseFloat(obj.position_y),
-              z: parseFloat(obj.position_z),
-            },
-            size: {
-              x: parseFloat(obj.size_x),
-              y: parseFloat(obj.size_y),
-              z: parseFloat(obj.size_z),
-            },
-            rotation: obj.rotation ? parseFloat(obj.rotation) : 0,
-            color: obj.color,
-            areaKey: obj.area_key,
-            locaKey: obj.loca_key,
-            locType: obj.loc_type,
-            materialCount: obj.material_count,
-            materialPreview: obj.material_preview_height
-              ? { height: parseFloat(obj.material_preview_height) }
-              : undefined,
-            parentId: obj.parent_id,
-            displayOrder: obj.display_order,
-            locked: obj.locked,
-            visible: obj.visible !== false,
-          }));
+          const loadedObjects: PlacedObject[] = objects.map((obj: any) => {
+            const objectType = obj.object_type;
+            return {
+              id: obj.id,
+              type: objectType,
+              name: obj.object_name,
+              position: {
+                x: parseFloat(obj.position_x),
+                y: parseFloat(obj.position_y),
+                z: parseFloat(obj.position_z),
+              },
+              size: {
+                x: parseFloat(obj.size_x),
+                y: parseFloat(obj.size_y),
+                z: parseFloat(obj.size_z),
+              },
+              rotation: obj.rotation ? parseFloat(obj.rotation) : 0,
+              color: getObjectColor(objectType), // 타입별 기본 색상 사용
+              areaKey: obj.area_key,
+              locaKey: obj.loca_key,
+              locType: obj.loc_type,
+              materialCount: obj.material_count,
+              materialPreview: obj.material_preview_height
+                ? { height: parseFloat(obj.material_preview_height) }
+                : undefined,
+              parentId: obj.parent_id,
+              displayOrder: obj.display_order,
+              locked: obj.locked,
+              visible: obj.visible !== false,
+            };
+          });
 
           setPlacedObjects(loadedObjects);
         } else {
@@ -101,16 +114,30 @@ export default function DigitalTwinViewer({ layoutId }: DigitalTwinViewerProps)
     };
 
     loadLayout();
-  }, [layoutId, toast]);
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [layoutId]); // toast 제거 - 무한 루프 방지
 
   // Location의 자재 목록 로드
   const loadMaterialsForLocation = async (locaKey: string, externalDbConnectionId: number) => {
+    if (!hierarchyConfig?.material) {
+      console.warn("hierarchyConfig.material이 없습니다. 자재 로드를 건너뜁니다.");
+      return;
+    }
+
     try {
       setLoadingMaterials(true);
       setShowInfoPanel(true);
-      const response = await getMaterials(externalDbConnectionId, locaKey);
+
+      const response = await getMaterials(externalDbConnectionId, {
+        tableName: hierarchyConfig.material.tableName,
+        keyColumn: hierarchyConfig.material.keyColumn,
+        locationKeyColumn: hierarchyConfig.material.locationKeyColumn,
+        layerColumn: hierarchyConfig.material.layerColumn,
+        locaKey: locaKey,
+      });
       if (response.success && response.data) {
-        const sortedMaterials = response.data.sort((a, b) => a.LOLAYER - b.LOLAYER);
+        const layerColumn = hierarchyConfig.material.layerColumn || "LOLAYER";
+        const sortedMaterials = response.data.sort((a: any, b: any) => (a[layerColumn] || 0) - (b[layerColumn] || 0));
         setMaterials(sortedMaterials);
       } else {
         setMaterials([]);
@@ -196,6 +223,49 @@ export default function DigitalTwinViewer({ layoutId }: DigitalTwinViewerProps)
     });
   }, [placedObjects, filterType, searchQuery]);
 
+  // 객체 타입별 기본 색상 (useMemo로 최적화)
+  const getObjectColor = useMemo(() => {
+    return (type: string): string => {
+      const colorMap: Record<string, string> = {
+        area: "#3b82f6", // 파란색
+        "location-bed": "#2563eb", // 진한 파란색
+        "location-stp": "#6b7280", // 회색
+        "location-temp": "#f59e0b", // 주황색
+        "location-dest": "#10b981", // 초록색
+        "crane-mobile": "#8b5cf6", // 보라색
+        rack: "#ef4444", // 빨간색
+      };
+      return colorMap[type] || "#3b82f6";
+    };
+  }, []);
+
+  // 3D 캔버스용 placements 변환 (useMemo로 최적화)
+  const canvasPlacements = useMemo(() => {
+    return placedObjects.map((obj) => ({
+      id: obj.id,
+      name: obj.name,
+      position_x: obj.position.x,
+      position_y: obj.position.y,
+      position_z: obj.position.z,
+      size_x: obj.size.x,
+      size_y: obj.size.y,
+      size_z: obj.size.z,
+      color: obj.color,
+      data_source_type: obj.type,
+      material_count: obj.materialCount,
+      material_preview_height: obj.materialPreview?.height,
+      yard_layout_id: undefined,
+      material_code: null,
+      material_name: null,
+      quantity: null,
+      unit: null,
+      data_source_config: undefined,
+      data_binding: undefined,
+      created_at: new Date().toISOString(),
+      updated_at: new Date().toISOString(),
+    }));
+  }, [placedObjects]);
+
   if (isLoading) {
     return (
       <div className="flex h-full items-center justify-center">
@@ -217,13 +287,13 @@ export default function DigitalTwinViewer({ layoutId }: DigitalTwinViewerProps)
       {/* 메인 영역 */}
       <div className="flex flex-1 overflow-hidden">
         {/* 좌측: 검색/필터 */}
-        <div className="flex h-full w-[20%] flex-col border-r">
+        <div className="flex h-full w-64 flex-shrink-0 flex-col border-r">
           <div className="space-y-4 p-4">
             {/* 검색 */}
             <div>
               <Label className="mb-2 block text-sm font-semibold">검색</Label>
               <div className="relative">
-                <Search className="text-muted-foreground absolute left-3 top-1/2 h-4 w-4 -translate-y-1/2" />
+                <Search className="text-muted-foreground absolute top-1/2 left-3 h-4 w-4 -translate-y-1/2" />
                 <Input
                   value={searchQuery}
                   onChange={(e) => setSearchQuery(e.target.value)}
@@ -234,7 +304,7 @@ export default function DigitalTwinViewer({ layoutId }: DigitalTwinViewerProps)
                   <Button
                     variant="ghost"
                     size="sm"
-                    className="absolute right-1 top-1/2 h-7 w-7 -translate-y-1/2 p-0"
+                    className="absolute top-1/2 right-1 h-7 w-7 -translate-y-1/2 p-0"
                     onClick={() => setSearchQuery("")}
                   >
                     <X className="h-3 w-3" />
@@ -281,9 +351,7 @@ export default function DigitalTwinViewer({ layoutId }: DigitalTwinViewerProps)
 
           {/* 객체 목록 */}
           <div className="flex-1 overflow-y-auto border-t p-4">
-            <Label className="mb-2 block text-sm font-semibold">
-              객체 목록 ({filteredObjects.length})
-            </Label>
+            <Label className="mb-2 block text-sm font-semibold">객체 목록 ({filteredObjects.length})</Label>
             {filteredObjects.length === 0 ? (
               <div className="text-muted-foreground flex h-32 items-center justify-center text-center text-sm">
                 {searchQuery ? "검색 결과가 없습니다" : "객체가 없습니다"}
@@ -306,9 +374,7 @@ export default function DigitalTwinViewer({ layoutId }: DigitalTwinViewerProps)
                       key={obj.id}
                       onClick={() => handleObjectClick(obj.id)}
                       className={`bg-background hover:bg-accent cursor-pointer rounded-lg border p-3 transition-all ${
-                        selectedObject?.id === obj.id
-                          ? "ring-primary bg-primary/5 ring-2"
-                          : "hover:shadow-sm"
+                        selectedObject?.id === obj.id ? "ring-primary bg-primary/5 ring-2" : "hover:shadow-sm"
                       }`}
                     >
                       <div className="flex items-start justify-between">
@@ -317,13 +383,13 @@ export default function DigitalTwinViewer({ layoutId }: DigitalTwinViewerProps)
                           <div className="text-muted-foreground mt-1 flex items-center gap-2 text-xs">
                             <span
                               className="inline-block h-2 w-2 rounded-full"
-                              style={{ backgroundColor: obj.color }}
+                              style={{ backgroundColor: getObjectColor(obj.type) }}
                             />
                             <span>{typeLabel}</span>
                           </div>
                         </div>
                       </div>
-                      
+
                       {/* 추가 정보 */}
                       <div className="mt-2 space-y-1">
                         {obj.areaKey && (
@@ -354,33 +420,7 @@ export default function DigitalTwinViewer({ layoutId }: DigitalTwinViewerProps)
         <div className="relative flex-1">
           {!isLoading && (
             <Yard3DCanvas
-              placements={useMemo(
-                () =>
-                  placedObjects.map((obj) => ({
-                    id: obj.id,
-                    name: obj.name,
-                    position_x: obj.position.x,
-                    position_y: obj.position.y,
-                    position_z: obj.position.z,
-                    size_x: obj.size.x,
-                    size_y: obj.size.y,
-                    size_z: obj.size.z,
-                    color: obj.color,
-                    data_source_type: obj.type,
-                    material_count: obj.materialCount,
-                    material_preview_height: obj.materialPreview?.height,
-                    yard_layout_id: undefined,
-                    material_code: null,
-                    material_name: null,
-                    quantity: null,
-                    unit: null,
-                    data_source_config: undefined,
-                    data_binding: undefined,
-                    created_at: new Date().toISOString(),
-                    updated_at: new Date().toISOString(),
-                  })),
-                [placedObjects],
-              )}
+              placements={canvasPlacements}
               selectedPlacementId={selectedObject?.id || null}
               onPlacementClick={(placement) => handleObjectClick(placement?.id || null)}
               focusOnPlacementId={null}
@@ -390,17 +430,12 @@ export default function DigitalTwinViewer({ layoutId }: DigitalTwinViewerProps)
         </div>
 
         {/* 우측: 정보 패널 */}
-        {showInfoPanel && selectedObject && (
-          <div className="h-full w-[25%] overflow-y-auto border-l">
+        <div className="h-full w-[480px] flex-shrink-0 overflow-y-auto border-l">
+          {selectedObject ? (
             <div className="p-4">
-              <div className="mb-4 flex items-center justify-between">
-                <div>
-                  <h3 className="text-lg font-semibold">상세 정보</h3>
-                  <p className="text-muted-foreground text-xs">{selectedObject.name}</p>
-                </div>
-                <Button variant="ghost" size="sm" onClick={() => setShowInfoPanel(false)}>
-                  <X className="h-4 w-4" />
-                </Button>
+              <div className="mb-4">
+                <h3 className="text-lg font-semibold">상세 정보</h3>
+                <p className="text-muted-foreground text-xs">{selectedObject.name}</p>
               </div>
 
               {/* 기본 정보 */}
@@ -429,72 +464,74 @@ export default function DigitalTwinViewer({ layoutId }: DigitalTwinViewerProps)
                 )}
               </div>
 
-              {/* 자재 목록 (Location인 경우) */}
+              {/* 자재 목록 (Location인 경우) - 아코디언 */}
               {(selectedObject.type === "location-bed" ||
                 selectedObject.type === "location-stp" ||
                 selectedObject.type === "location-temp" ||
                 selectedObject.type === "location-dest") && (
                 <div className="mt-4">
-                  <Label className="mb-2 block text-sm font-semibold">자재 목록</Label>
                   {loadingMaterials ? (
                     <div className="flex h-32 items-center justify-center">
                       <Loader2 className="text-muted-foreground h-6 w-6 animate-spin" />
                     </div>
                   ) : materials.length === 0 ? (
                     <div className="text-muted-foreground flex h-32 items-center justify-center text-center text-sm">
-                      {externalDbConnectionId
-                        ? "자재가 없습니다"
-                        : "외부 DB 연결이 설정되지 않았습니다"}
+                      {externalDbConnectionId ? "자재가 없습니다" : "외부 DB 연결이 설정되지 않았습니다"}
                     </div>
                   ) : (
                     <div className="space-y-2">
-                      {materials.map((material, index) => (
-                        <div
-                          key={`${material.STKKEY}-${index}`}
-                          className="bg-muted hover:bg-accent rounded-lg border p-3 transition-colors"
-                        >
-                          <div className="mb-2 flex items-start justify-between">
-                            <div className="flex-1">
-                              <p className="text-sm font-medium">{material.STKKEY}</p>
-                              <p className="text-muted-foreground mt-0.5 text-xs">
-                                층: {material.LOLAYER} | Area: {material.AREAKEY}
-                              </p>
+                      <Label className="mb-2 block text-sm font-semibold">자재 목록 ({materials.length}개)</Label>
+                      {materials.map((material, index) => {
+                        const displayColumns = hierarchyConfig?.material?.displayColumns || [];
+                        return (
+                          <details
+                            key={`${material.STKKEY}-${index}`}
+                            className="bg-muted group hover:bg-accent rounded-lg border transition-colors"
+                          >
+                            <summary className="flex cursor-pointer items-center justify-between p-3 text-sm font-medium">
+                              <div className="flex-1">
+                                <div className="flex items-center gap-2">
+                                  <span className="font-semibold">
+                                    층 {material[hierarchyConfig?.material?.layerColumn || "LOLAYER"]}
+                                  </span>
+                                  {displayColumns[0] && (
+                                    <span className="text-muted-foreground text-xs">
+                                      {material[displayColumns[0].column]}
+                                    </span>
+                                  )}
+                                </div>
+                              </div>
+                              <svg
+                                className="text-muted-foreground h-4 w-4 transition-transform group-open:rotate-180"
+                                fill="none"
+                                stroke="currentColor"
+                                viewBox="0 0 24 24"
+                              >
+                                <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 9l-7 7-7-7" />
+                              </svg>
+                            </summary>
+                            <div className="space-y-2 border-t p-3 pt-3">
+                              {displayColumns.map((colConfig: any) => (
+                                <div key={colConfig.column} className="flex justify-between text-xs">
+                                  <span className="text-muted-foreground">{colConfig.label}:</span>
+                                  <span className="font-medium">{material[colConfig.column] || "-"}</span>
+                                </div>
+                              ))}
                             </div>
-                          </div>
-                          <div className="text-muted-foreground grid grid-cols-2 gap-2 text-xs">
-                            {material.STKWIDT && (
-                              <div>
-                                폭: <span className="font-medium">{material.STKWIDT}</span>
-                              </div>
-                            )}
-                            {material.STKLENG && (
-                              <div>
-                                길이: <span className="font-medium">{material.STKLENG}</span>
-                              </div>
-                            )}
-                            {material.STKHEIG && (
-                              <div>
-                                높이: <span className="font-medium">{material.STKHEIG}</span>
-                              </div>
-                            )}
-                            {material.STKWEIG && (
-                              <div>
-                                무게: <span className="font-medium">{material.STKWEIG}</span>
-                              </div>
-                            )}
-                          </div>
-                          {material.STKRMKS && (
-                            <p className="text-muted-foreground mt-2 text-xs italic">{material.STKRMKS}</p>
-                          )}
-                        </div>
-                      ))}
+                          </details>
+                        );
+                      })}
                     </div>
                   )}
                 </div>
               )}
             </div>
-          </div>
-        )}
+          ) : (
+            <div className="flex h-full items-center justify-center p-4">
+              <p className="text-muted-foreground text-sm">객체를 선택하세요</p>
+            </div>
+          )}
+        </div>
       </div>
     </div>
   );
diff --git a/frontend/components/admin/dashboard/widgets/yard-3d/HIERARCHY_MIGRATION_GUIDE.md b/frontend/components/admin/dashboard/widgets/yard-3d/HIERARCHY_MIGRATION_GUIDE.md
new file mode 100644
index 00000000..5a7e01fb
--- /dev/null
+++ b/frontend/components/admin/dashboard/widgets/yard-3d/HIERARCHY_MIGRATION_GUIDE.md
@@ -0,0 +1,410 @@
+# 디지털 트윈 동적 계층 구조 마이그레이션 가이드
+
+## 개요
+
+**기존 구조**: Area(구역) → Location(위치) 고정 2단계  
+**신규 구조**: 동적 N-Level 계층 (영역 → 하위 영역 → ... → 자재)
+
+---
+
+## 1. 데이터베이스 마이그레이션
+
+### 실행 방법
+```bash
+# PostgreSQL 컨테이너 접속
+docker exec -it pms-db psql -U postgres -d erp
+
+# 마이그레이션 실행
+\i db/migrations/042_refactor_digital_twin_hierarchy.sql
+```
+
+### 변경 사항
+- `digital_twin_layout` 테이블에 `hierarchy_config` JSONB 컬럼 추가
+- 기존 테이블 매핑 컬럼들 제거 (warehouse_table_name, area_table_name 등)
+- `digital_twin_objects` 테이블에 계층 관련 컬럼 추가:
+  - `hierarchy_level`: 계층 레벨 (1, 2, 3, ...)
+  - `parent_key`: 부모 객체의 외부 DB 키
+  - `external_key`: 자신의 외부 DB 키
+
+---
+
+## 2. 백엔드 API 변경 사항
+
+### 신규 API 엔드포인트
+
+#### 전체 계층 데이터 조회
+```
+POST /api/digital-twin/data/hierarchy
+Request Body:
+{
+  "externalDbConnectionId": 15,
+  "hierarchyConfig": "{...}" // JSON 문자열
+}
+
+Response:
+{
+  "success": true,
+  "data": {
+    "warehouse": [...],
+    "levels": [
+      { "level": 1, "name": "구역", "data": [...] },
+      { "level": 2, "name": "위치", "data": [...] }
+    ],
+    "materials": [
+      { "location_key": "LOC001", "count": 150 }
+    ]
+  }
+}
+```
+
+#### 특정 부모의 하위 데이터 조회
+```
+POST /api/digital-twin/data/children
+Request Body:
+{
+  "externalDbConnectionId": 15,
+  "hierarchyConfig": "{...}",
+  "parentLevel": 1,
+  "parentKey": "AREA001"
+}
+
+Response:
+{
+  "success": true,
+  "data": [...] // 다음 레벨 데이터
+}
+```
+
+### 레거시 API (호환성 유지)
+- `/api/digital-twin/data/warehouses` (GET)
+- `/api/digital-twin/data/areas` (GET)
+- `/api/digital-twin/data/locations` (GET)
+- `/api/digital-twin/data/materials` (GET)
+- `/api/digital-twin/data/material-counts` (POST로 변경)
+
+---
+
+## 3. 프론트엔드 변경 사항
+
+### 새로운 컴포넌트
+
+#### `HierarchyConfigPanel.tsx`
+동적 계층 구조 설정 UI
+
+**사용 방법:**
+```tsx
+import HierarchyConfigPanel from "./HierarchyConfigPanel";
+
+<HierarchyConfigPanel
+  externalDbConnectionId={selectedDbConnection}
+  hierarchyConfig={hierarchyConfig}
+  onHierarchyConfigChange={setHierarchyConfig}
+  availableTables={availableTables}
+  onLoadTables={loadTablesFromDb}
+  onLoadColumns={loadColumnsFromTable}
+/>
+```
+
+### 계층 구조 설정 예시
+
+```json
+{
+  "warehouse": {
+    "tableName": "MWARMA",
+    "keyColumn": "WAREKEY",
+    "nameColumn": "WARENAME"
+  },
+  "levels": [
+    {
+      "level": 1,
+      "name": "구역",
+      "tableName": "MAREMA",
+      "keyColumn": "AREAKEY",
+      "nameColumn": "AREANAME",
+      "parentKeyColumn": "WAREKEY",
+      "objectTypes": ["area"]
+    },
+    {
+      "level": 2,
+      "name": "위치",
+      "tableName": "MLOCMA",
+      "keyColumn": "LOCAKEY",
+      "nameColumn": "LOCANAME",
+      "parentKeyColumn": "AREAKEY",
+      "typeColumn": "LOCTYPE",
+      "objectTypes": ["location-bed", "location-stp"]
+    }
+  ],
+  "material": {
+    "tableName": "WSTKKY",
+    "keyColumn": "STKKEY",
+    "locationKeyColumn": "LOCAKEY",
+    "layerColumn": "LOLAYER",
+    "quantityColumn": "STKQUAN"
+  }
+}
+```
+
+---
+
+## 4. 공간적 종속성 (Spatial Containment)
+
+### 새로운 유틸리티: `spatialContainment.ts`
+
+#### 주요 함수
+
+**1. 포함 여부 확인**
+```typescript
+import { isContainedIn } from "./spatialContainment";
+
+const isValid = isContainedIn(childObject, parentObject);
+// 자식 객체가 부모 객체 내부에 있는지 AABB로 검증
+```
+
+**2. 유효한 부모 찾기**
+```typescript
+import { findValidParent } from "./spatialContainment";
+
+const parent = findValidParent(draggedChild, allObjects, hierarchyLevels);
+// 드래그 중인 자식 객체를 포함하는 부모 객체 자동 감지
+```
+
+**3. 검증**
+```typescript
+import { validateSpatialContainment } from "./spatialContainment";
+
+const result = validateSpatialContainment(child, allObjects);
+if (!result.valid) {
+  alert("하위 영역은 반드시 상위 영역 내부에 배치되어야 합니다!");
+}
+```
+
+**4. 그룹 이동 (부모 이동 시 자식도 함께)**
+```typescript
+import { updateChildrenPositions, getAllDescendants } from "./spatialContainment";
+
+// 부모 객체 이동 시
+const updatedChildren = updateChildrenPositions(
+  parentObject,
+  oldPosition,
+  newPosition,
+  allObjects
+);
+
+// 모든 하위 자손(재귀) 가져오기
+const descendants = getAllDescendants(parentId, allObjects);
+```
+
+---
+
+## 5. DigitalTwinEditor 통합 방법
+
+### Step 1: HierarchyConfigPanel 추가
+```tsx
+// DigitalTwinEditor.tsx
+
+import HierarchyConfigPanel, { HierarchyConfig } from "./HierarchyConfigPanel";
+
+const [hierarchyConfig, setHierarchyConfig] = useState<HierarchyConfig | null>(null);
+
+// 좌측 사이드바에 추가
+<HierarchyConfigPanel
+  externalDbConnectionId={selectedDbConnection}
+  hierarchyConfig={hierarchyConfig}
+  onHierarchyConfigChange={setHierarchyConfig}
+  availableTables={availableTables}
+  onLoadTables={loadTables}
+  onLoadColumns={loadColumns}
+/>
+```
+
+### Step 2: 계층 데이터 로드
+```tsx
+import { getHierarchyData, getChildrenData } from "@/lib/api/digitalTwin";
+
+const loadHierarchyData = async () => {
+  if (!selectedDbConnection || !hierarchyConfig) return;
+
+  const response = await getHierarchyData(selectedDbConnection, hierarchyConfig);
+  if (response.success && response.data) {
+    // 창고 데이터
+    setWarehouses(response.data.warehouse);
+    
+    // 각 레벨 데이터
+    response.data.levels.forEach((level) => {
+      if (level.level === 1) {
+        setAvailableAreas(level.data);
+      } else if (level.level === 2) {
+        setAvailableLocations(level.data);
+      }
+      // ... 추가 레벨
+    });
+    
+    // 자재 개수
+    setMaterialCounts(response.data.materials);
+  }
+};
+```
+
+### Step 3: Yard3DCanvas에서 검증
+```tsx
+// Yard3DCanvas.tsx 또는 DigitalTwinEditor.tsx
+
+import { validateSpatialContainment } from "./spatialContainment";
+
+const handleObjectDrop = (droppedObject: PlacedObject) => {
+  const result = validateSpatialContainment(
+    {
+      id: droppedObject.id,
+      position: droppedObject.position,
+      size: droppedObject.size,
+      hierarchyLevel: droppedObject.hierarchyLevel || 1,
+      parentId: droppedObject.parentId,
+    },
+    placedObjects.map((obj) => ({
+      id: obj.id,
+      position: obj.position,
+      size: obj.size,
+      hierarchyLevel: obj.hierarchyLevel || 1,
+      parentId: obj.parentId,
+    }))
+  );
+
+  if (!result.valid) {
+    toast({
+      variant: "destructive",
+      title: "배치 오류",
+      description: "하위 영역은 반드시 상위 영역 내부에 배치되어야 합니다.",
+    });
+    return; // 배치 취소
+  }
+
+  // 유효하면 부모 ID 업데이트
+  droppedObject.parentId = result.parent?.id;
+  
+  // 상태 업데이트
+  setPlacedObjects([...placedObjects, droppedObject]);
+};
+```
+
+### Step 4: 그룹 이동 구현
+```tsx
+import { updateChildrenPositions, getAllDescendants } from "./spatialContainment";
+
+const handleObjectMove = (
+  movedObject: PlacedObject,
+  oldPosition: { x: number; y: number; z: number },
+  newPosition: { x: number; y: number; z: number }
+) => {
+  // 이동한 객체 업데이트
+  const updatedObjects = placedObjects.map((obj) =>
+    obj.id === movedObject.id
+      ? { ...obj, position: newPosition }
+      : obj
+  );
+
+  // 모든 하위 자손 가져오기
+  const descendants = getAllDescendants(
+    movedObject.id,
+    placedObjects.map((obj) => ({
+      id: obj.id,
+      position: obj.position,
+      size: obj.size,
+      hierarchyLevel: obj.hierarchyLevel || 1,
+      parentId: obj.parentId,
+    }))
+  );
+
+  // 하위 자손들도 같이 이동
+  const delta = {
+    x: newPosition.x - oldPosition.x,
+    y: newPosition.y - oldPosition.y,
+    z: newPosition.z - oldPosition.z,
+  };
+
+  descendants.forEach((descendant) => {
+    const index = updatedObjects.findIndex((obj) => obj.id === descendant.id);
+    if (index !== -1) {
+      updatedObjects[index].position = {
+        x: updatedObjects[index].position.x + delta.x,
+        y: updatedObjects[index].position.y + delta.y,
+        z: updatedObjects[index].position.z + delta.z,
+      };
+    }
+  });
+
+  setPlacedObjects(updatedObjects);
+};
+```
+
+---
+
+## 6. 테스트 시나리오
+
+### 테스트 1: 계층 구조 설정
+1. 외부 DB 선택
+2. 창고 테이블 선택 및 컬럼 매핑
+3. 레벨 추가 (레벨 1: 구역, 레벨 2: 위치)
+4. 각 레벨의 테이블 및 컬럼 매핑
+5. 자재 테이블 설정
+6. "저장" 클릭하여 `hierarchy_config` 저장
+
+### 테스트 2: 데이터 로드
+1. 계층 구조 설정 완료 후
+2. 창고 선택
+3. 각 레벨 데이터가 좌측 패널에 표시되는지 확인
+4. 자재 개수가 올바르게 표시되는지 확인
+
+### 테스트 3: 3D 배치 및 공간적 종속성
+1. 레벨 1 (구역) 객체를 3D 캔버스에 드래그앤드롭
+2. 레벨 2 (위치) 객체를 레벨 1 객체 **내부**에 드래그앤드롭 → 성공
+3. 레벨 2 객체를 레벨 1 객체 **외부**에 드롭 → 오류 메시지 표시
+
+### 테스트 4: 그룹 이동
+1. 레벨 1 객체를 이동
+2. 해당 레벨 1 객체의 모든 하위 객체(레벨 2, 3, ...)도 같이 이동하는지 확인
+3. 부모-자식 관계가 유지되는지 확인
+
+### 테스트 5: 레이아웃 저장/로드
+1. 위 단계를 완료한 후 "저장" 클릭
+2. 페이지 새로고침
+3. 레이아웃을 다시 로드하여 계층 구조 및 객체 위치가 복원되는지 확인
+
+---
+
+## 7. 마이그레이션 체크리스트
+
+- [ ] DB 마이그레이션 실행 (042_refactor_digital_twin_hierarchy.sql)
+- [ ] 백엔드 API 테스트 (Postman/cURL)
+- [ ] `HierarchyConfigPanel` 컴포넌트 통합
+- [ ] `spatialContainment.ts` 유틸리티 통합
+- [ ] `DigitalTwinEditor`에서 계층 데이터 로드 구현
+- [ ] `Yard3DCanvas`에서 공간적 종속성 검증 구현
+- [ ] 그룹 이동 기능 구현
+- [ ] 모든 테스트 시나리오 통과
+- [ ] 레거시 API와의 호환성 확인
+
+---
+
+## 8. 주의사항
+
+1. **기존 레이아웃 데이터**: 마이그레이션 전 기존 레이아웃이 있다면 백업 필요
+2. **컬럼 매핑 검증**: 외부 DB 테이블의 컬럼명이 변경될 수 있으므로 auto-mapping 로직 필수
+3. **성능**: N-Level이 3단계 이상 깊어지면 재귀 쿼리 성능 모니터링 필요
+4. **권한**: 외부 DB에 대한 읽기 권한 확인
+
+---
+
+## 9. 향후 개선 사항
+
+1. **드래그 중 실시간 검증**: 드래그하는 동안 부모 영역 하이라이트
+2. **시각적 피드백**: 유효한 배치 위치를 그리드에 색상으로 표시
+3. **계층 구조 시각화**: 좌측 패널에 트리 구조로 표시
+4. **Undo/Redo**: 객체 배치 실행 취소 기능
+5. **스냅 가이드**: 부모 영역 테두리에 스냅 가이드라인 표시
+
+---
+
+**작성일**: 2025-11-20  
+**작성자**: AI Assistant
+
diff --git a/frontend/components/admin/dashboard/widgets/yard-3d/HierarchyConfigPanel.tsx b/frontend/components/admin/dashboard/widgets/yard-3d/HierarchyConfigPanel.tsx
new file mode 100644
index 00000000..8a6f4bfd
--- /dev/null
+++ b/frontend/components/admin/dashboard/widgets/yard-3d/HierarchyConfigPanel.tsx
@@ -0,0 +1,559 @@
+"use client";
+
+import { useState, useEffect } from "react";
+import { Button } from "@/components/ui/button";
+import { Input } from "@/components/ui/input";
+import { Label } from "@/components/ui/label";
+import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select";
+import { Loader2, Plus, Trash2, GripVertical } from "lucide-react";
+import { Card, CardContent, CardDescription, CardHeader, CardTitle } from "@/components/ui/card";
+import { Separator } from "@/components/ui/separator";
+
+// 계층 레벨 설정 인터페이스
+export interface HierarchyLevel {
+  level: number;
+  name: string;
+  tableName: string;
+  keyColumn: string;
+  nameColumn: string;
+  parentKeyColumn: string;
+  typeColumn?: string;
+  objectTypes: string[];
+}
+
+// 전체 계층 구조 설정
+export interface HierarchyConfig {
+  warehouseKey: string; // 이 레이아웃이 속한 창고 키 (예: "DY99")
+  warehouse?: {
+    tableName: string; // 창고 테이블명 (예: "MWARMA")
+    keyColumn: string;
+    nameColumn: string;
+  };
+  levels: HierarchyLevel[];
+  material?: {
+    tableName: string;
+    keyColumn: string;
+    locationKeyColumn: string;
+    layerColumn?: string;
+    quantityColumn?: string;
+    displayColumns?: Array<{ column: string; label: string }>; // 우측 패널에 표시할 컬럼들 (컬럼명 + 표시명)
+  };
+}
+
+interface HierarchyConfigPanelProps {
+  externalDbConnectionId: number | null;
+  hierarchyConfig: HierarchyConfig | null;
+  onHierarchyConfigChange: (config: HierarchyConfig) => void;
+  availableTables: string[];
+  onLoadTables: () => Promise<void>;
+  onLoadColumns: (tableName: string) => Promise<string[]>;
+}
+
+export default function HierarchyConfigPanel({
+  externalDbConnectionId,
+  hierarchyConfig,
+  onHierarchyConfigChange,
+  availableTables,
+  onLoadTables,
+  onLoadColumns,
+}: HierarchyConfigPanelProps) {
+  const [localConfig, setLocalConfig] = useState<HierarchyConfig>(
+    hierarchyConfig || {
+      warehouseKey: "",
+      levels: [],
+    },
+  );
+
+  const [loadingColumns, setLoadingColumns] = useState(false);
+  const [columnsCache, setColumnsCache] = useState<{ [tableName: string]: string[] }>({});
+
+  // 외부에서 변경된 경우 동기화
+  useEffect(() => {
+    if (hierarchyConfig) {
+      setLocalConfig(hierarchyConfig);
+    }
+  }, [hierarchyConfig]);
+
+  // 테이블 선택 시 컬럼 로드
+  const handleTableChange = async (tableName: string, type: "warehouse" | "material" | number) => {
+    if (columnsCache[tableName]) return; // 이미 로드된 경우 스킵
+
+    setLoadingColumns(true);
+    try {
+      const columns = await onLoadColumns(tableName);
+      setColumnsCache((prev) => ({ ...prev, [tableName]: columns }));
+    } catch (error) {
+      console.error("컬럼 로드 실패:", error);
+    } finally {
+      setLoadingColumns(false);
+    }
+  };
+
+  // 창고 키 변경 (제거됨 - 상위 컴포넌트에서 처리)
+
+  // 레벨 추가
+  const handleAddLevel = () => {
+    const maxLevel = localConfig.levels.length > 0 ? Math.max(...localConfig.levels.map((l) => l.level)) : 0;
+    const newLevel: HierarchyLevel = {
+      level: maxLevel + 1,
+      name: `레벨 ${maxLevel + 1}`,
+      tableName: "",
+      keyColumn: "",
+      nameColumn: "",
+      parentKeyColumn: "",
+      objectTypes: [],
+    };
+
+    const newConfig = {
+      ...localConfig,
+      levels: [...localConfig.levels, newLevel],
+    };
+    setLocalConfig(newConfig);
+    // onHierarchyConfigChange(newConfig); // 즉시 전달하지 않음
+  };
+
+  // 레벨 삭제
+  const handleRemoveLevel = (level: number) => {
+    const newConfig = {
+      ...localConfig,
+      levels: localConfig.levels.filter((l) => l.level !== level),
+    };
+    setLocalConfig(newConfig);
+    // onHierarchyConfigChange(newConfig); // 즉시 전달하지 않음
+  };
+
+  // 레벨 설정 변경
+  const handleLevelChange = (level: number, field: keyof HierarchyLevel, value: any) => {
+    const newConfig = {
+      ...localConfig,
+      levels: localConfig.levels.map((l) => (l.level === level ? { ...l, [field]: value } : l)),
+    };
+    setLocalConfig(newConfig);
+    // onHierarchyConfigChange(newConfig); // 즉시 전달하지 않음
+  };
+
+  // 자재 설정 변경
+  const handleMaterialChange = (field: keyof NonNullable<HierarchyConfig["material"]>, value: string) => {
+    const newConfig = {
+      ...localConfig,
+      material: {
+        ...localConfig.material,
+        [field]: value,
+      } as NonNullable<HierarchyConfig["material"]>,
+    };
+    setLocalConfig(newConfig);
+    // onHierarchyConfigChange(newConfig); // 즉시 전달하지 않음
+  };
+
+  // 창고 설정 변경
+  const handleWarehouseChange = (field: keyof NonNullable<HierarchyConfig["warehouse"]>, value: string) => {
+    const newWarehouse = {
+      ...localConfig.warehouse,
+      [field]: value,
+    } as NonNullable<HierarchyConfig["warehouse"]>;
+    setLocalConfig({ ...localConfig, warehouse: newWarehouse });
+  };
+
+  // 설정 적용
+  const handleApplyConfig = () => {
+    onHierarchyConfigChange(localConfig);
+  };
+
+  if (!externalDbConnectionId) {
+    return <div className="text-muted-foreground p-4 text-center text-sm">외부 DB를 먼저 선택하세요</div>;
+  }
+
+  return (
+    <div className="space-y-4">
+      {/* 창고 설정 */}
+      <Card>
+        <CardHeader className="p-4 pb-3">
+          <CardTitle className="text-sm">창고 설정</CardTitle>
+          <CardDescription className="text-[10px]">창고 테이블 및 컬럼 매핑</CardDescription>
+        </CardHeader>
+        <CardContent className="space-y-2 p-4 pt-0">
+          {/* 창고 테이블 선택 */}
+          <div>
+            <Label className="text-[10px]">테이블</Label>
+            <Select
+              value={localConfig.warehouse?.tableName || ""}
+              onValueChange={async (value) => {
+                handleWarehouseChange("tableName", value);
+                await handleTableChange(value, "warehouse");
+              }}
+            >
+              <SelectTrigger className="h-7 text-[10px]">
+                <SelectValue placeholder="테이블 선택..." />
+              </SelectTrigger>
+              <SelectContent>
+                {availableTables.map((table) => (
+                  <SelectItem key={table} value={table} className="text-[10px]">
+                    {table}
+                  </SelectItem>
+                ))}
+              </SelectContent>
+            </Select>
+          </div>
+
+          {/* 창고 컬럼 매핑 */}
+          {localConfig.warehouse?.tableName && columnsCache[localConfig.warehouse.tableName] && (
+            <div className="space-y-2">
+              <div>
+                <Label className="text-[10px]">ID 컬럼</Label>
+                <Select
+                  value={localConfig.warehouse.keyColumn || ""}
+                  onValueChange={(value) => handleWarehouseChange("keyColumn", value)}
+                >
+                  <SelectTrigger className="h-7 text-[10px]">
+                    <SelectValue placeholder="선택..." />
+                  </SelectTrigger>
+                  <SelectContent>
+                    {columnsCache[localConfig.warehouse.tableName].map((col) => (
+                      <SelectItem key={col} value={col} className="text-[10px]">
+                        {col}
+                      </SelectItem>
+                    ))}
+                  </SelectContent>
+                </Select>
+              </div>
+
+              <div>
+                <Label className="text-[10px]">이름 컬럼</Label>
+                <Select
+                  value={localConfig.warehouse.nameColumn || ""}
+                  onValueChange={(value) => handleWarehouseChange("nameColumn", value)}
+                >
+                  <SelectTrigger className="h-7 text-[10px]">
+                    <SelectValue placeholder="선택..." />
+                  </SelectTrigger>
+                  <SelectContent>
+                    {columnsCache[localConfig.warehouse.tableName].map((col) => (
+                      <SelectItem key={col} value={col} className="text-[10px]">
+                        {col}
+                      </SelectItem>
+                    ))}
+                  </SelectContent>
+                </Select>
+              </div>
+            </div>
+          )}
+        </CardContent>
+      </Card>
+
+      {/* 계층 레벨 목록 */}
+      <Card>
+        <CardHeader className="p-4 pb-3">
+          <CardTitle className="text-sm">계층 레벨</CardTitle>
+          <CardDescription className="text-[10px]">영역, 하위 영역 등</CardDescription>
+        </CardHeader>
+        <CardContent className="space-y-3 p-4 pt-0">
+          {localConfig.levels.length === 0 && (
+            <div className="text-muted-foreground py-6 text-center text-xs">레벨을 추가하세요</div>
+          )}
+
+          {localConfig.levels.map((level) => (
+            <Card key={level.level} className="border-muted">
+              <CardHeader className="flex flex-row items-center justify-between p-3">
+                <div className="flex items-center gap-2">
+                  <GripVertical className="text-muted-foreground h-4 w-4" />
+                  <Input
+                    value={level.name}
+                    onChange={(e) => handleLevelChange(level.level, "name", e.target.value)}
+                    className="h-7 w-32 text-xs"
+                    placeholder="레벨명"
+                  />
+                </div>
+                <Button
+                  variant="ghost"
+                  size="sm"
+                  onClick={() => handleRemoveLevel(level.level)}
+                  className="h-7 w-7 p-0"
+                >
+                  <Trash2 className="h-3 w-3" />
+                </Button>
+              </CardHeader>
+              <CardContent className="space-y-2 p-3 pt-0">
+                <div>
+                  <Label className="text-[10px]">테이블</Label>
+                  <Select
+                    value={level.tableName}
+                    onValueChange={(val) => {
+                      handleLevelChange(level.level, "tableName", val);
+                      handleTableChange(val, level.level);
+                    }}
+                  >
+                    <SelectTrigger className="h-7 text-[10px]">
+                      <SelectValue placeholder="테이블 선택" />
+                    </SelectTrigger>
+                    <SelectContent>
+                      {availableTables.map((table) => (
+                        <SelectItem key={table} value={table} className="text-xs">
+                          {table}
+                        </SelectItem>
+                      ))}
+                    </SelectContent>
+                  </Select>
+                </div>
+
+                {level.tableName && columnsCache[level.tableName] && (
+                  <>
+                      <div>
+                        <Label className="text-[10px]">ID 컬럼</Label>
+                        <Select
+                          value={level.keyColumn}
+                          onValueChange={(val) => handleLevelChange(level.level, "keyColumn", val)}
+                        >
+                          <SelectTrigger className="h-7 text-[10px]">
+                            <SelectValue />
+                          </SelectTrigger>
+                          <SelectContent>
+                            {columnsCache[level.tableName].map((col) => (
+                              <SelectItem key={col} value={col} className="text-xs">
+                                {col}
+                              </SelectItem>
+                            ))}
+                          </SelectContent>
+                        </Select>
+                      </div>
+
+                      <div>
+                        <Label className="text-[10px]">이름 컬럼</Label>
+                        <Select
+                          value={level.nameColumn}
+                          onValueChange={(val) => handleLevelChange(level.level, "nameColumn", val)}
+                        >
+                          <SelectTrigger className="h-7 text-[10px]">
+                            <SelectValue />
+                          </SelectTrigger>
+                          <SelectContent>
+                            {columnsCache[level.tableName].map((col) => (
+                              <SelectItem key={col} value={col} className="text-xs">
+                                {col}
+                              </SelectItem>
+                            ))}
+                          </SelectContent>
+                        </Select>
+                    </div>
+
+                    <div>
+                      <Label className="text-[10px]">부모 키 컬럼</Label>
+                      <Select
+                        value={level.parentKeyColumn}
+                        onValueChange={(val) => handleLevelChange(level.level, "parentKeyColumn", val)}
+                      >
+                        <SelectTrigger className="h-7 text-[10px]">
+                          <SelectValue placeholder="부모 키 컬럼" />
+                        </SelectTrigger>
+                        <SelectContent>
+                          {columnsCache[level.tableName].map((col) => (
+                            <SelectItem key={col} value={col} className="text-xs">
+                              {col}
+                            </SelectItem>
+                          ))}
+                        </SelectContent>
+                      </Select>
+                    </div>
+
+                    <div>
+                      <Label className="text-[10px]">타입 컬럼 (선택)</Label>
+                      <Select
+                        value={level.typeColumn || "__none__"}
+                        onValueChange={(val) =>
+                          handleLevelChange(level.level, "typeColumn", val === "__none__" ? undefined : val)
+                        }
+                      >
+                        <SelectTrigger className="h-7 text-[10px]">
+                          <SelectValue placeholder="타입 컬럼 (선택)" />
+                        </SelectTrigger>
+                        <SelectContent>
+                          <SelectItem value="__none__">없음</SelectItem>
+                          {columnsCache[level.tableName].map((col) => (
+                            <SelectItem key={col} value={col} className="text-xs">
+                              {col}
+                            </SelectItem>
+                          ))}
+                        </SelectContent>
+                      </Select>
+                    </div>
+                  </>
+                )}
+              </CardContent>
+            </Card>
+          ))}
+
+          <Button variant="outline" size="sm" onClick={handleAddLevel} className="h-8 w-full text-xs">
+            <Plus className="mr-1 h-3 w-3" />
+            레벨 추가
+          </Button>
+        </CardContent>
+      </Card>
+
+      {/* 자재 설정 */}
+      <Card>
+        <CardHeader className="p-4 pb-3">
+          <CardTitle className="text-sm">자재 설정</CardTitle>
+          <CardDescription className="text-[10px]">최하위 레벨의 데이터</CardDescription>
+        </CardHeader>
+        <CardContent className="space-y-3 p-4 pt-0">
+          <div>
+            <Label className="text-[10px]">테이블</Label>
+            <Select
+              value={localConfig.material?.tableName || ""}
+              onValueChange={(val) => {
+                handleMaterialChange("tableName", val);
+                handleTableChange(val, "material");
+              }}
+            >
+              <SelectTrigger className="h-8 text-xs">
+                <SelectValue placeholder="테이블 선택" />
+              </SelectTrigger>
+              <SelectContent>
+                {availableTables.map((table) => (
+                  <SelectItem key={table} value={table} className="text-xs">
+                    {table}
+                  </SelectItem>
+                ))}
+              </SelectContent>
+            </Select>
+          </div>
+
+          {localConfig.material?.tableName && columnsCache[localConfig.material.tableName] && (
+            <>
+                <div>
+                  <Label className="text-[10px]">ID 컬럼</Label>
+                  <Select
+                    value={localConfig.material.keyColumn}
+                    onValueChange={(val) => handleMaterialChange("keyColumn", val)}
+                  >
+                    <SelectTrigger className="h-7 text-[10px]">
+                      <SelectValue />
+                    </SelectTrigger>
+                    <SelectContent>
+                      {columnsCache[localConfig.material.tableName].map((col) => (
+                        <SelectItem key={col} value={col} className="text-xs">
+                          {col}
+                        </SelectItem>
+                      ))}
+                    </SelectContent>
+                  </Select>
+                </div>
+
+                <div>
+                  <Label className="text-[10px]">위치 키 컬럼</Label>
+                  <Select
+                    value={localConfig.material.locationKeyColumn}
+                    onValueChange={(val) => handleMaterialChange("locationKeyColumn", val)}
+                  >
+                    <SelectTrigger className="h-7 text-[10px]">
+                      <SelectValue />
+                    </SelectTrigger>
+                    <SelectContent>
+                      {columnsCache[localConfig.material.tableName].map((col) => (
+                        <SelectItem key={col} value={col} className="text-xs">
+                          {col}
+                        </SelectItem>
+                      ))}
+                    </SelectContent>
+                  </Select>
+              </div>
+
+                <div>
+                  <Label className="text-[10px]">레이어 컬럼 (선택)</Label>
+                  <Select
+                  value={localConfig.material.layerColumn || "__none__"}
+                  onValueChange={(val) => handleMaterialChange("layerColumn", val === "__none__" ? undefined : val)}
+                  >
+                    <SelectTrigger className="h-7 text-[10px]">
+                      <SelectValue placeholder="레이어 컬럼" />
+                    </SelectTrigger>
+                    <SelectContent>
+                    <SelectItem value="__none__">없음</SelectItem>
+                      {columnsCache[localConfig.material.tableName].map((col) => (
+                        <SelectItem key={col} value={col} className="text-xs">
+                          {col}
+                        </SelectItem>
+                      ))}
+                    </SelectContent>
+                  </Select>
+                </div>
+
+                <div>
+                  <Label className="text-[10px]">수량 컬럼 (선택)</Label>
+                  <Select
+                  value={localConfig.material.quantityColumn || "__none__"}
+                  onValueChange={(val) => handleMaterialChange("quantityColumn", val === "__none__" ? undefined : val)}
+                  >
+                    <SelectTrigger className="h-7 text-[10px]">
+                      <SelectValue placeholder="수량 컬럼" />
+                    </SelectTrigger>
+                    <SelectContent>
+                    <SelectItem value="__none__">없음</SelectItem>
+                      {columnsCache[localConfig.material.tableName].map((col) => (
+                        <SelectItem key={col} value={col} className="text-xs">
+                          {col}
+                        </SelectItem>
+                      ))}
+                    </SelectContent>
+                  </Select>
+              </div>
+
+              <Separator className="my-3" />
+
+              {/* 표시 컬럼 선택 */}
+              <div>
+                <Label className="text-[10px]">우측 패널 표시 컬럼</Label>
+                <p className="text-muted-foreground mb-2 text-[9px]">
+                  자재 클릭 시 표시할 정보를 선택하고 라벨을 입력하세요
+                </p>
+                <div className="max-h-60 space-y-2 overflow-y-auto rounded border p-2">
+                  {columnsCache[localConfig.material.tableName].map((col) => {
+                    const displayItem = localConfig.material?.displayColumns?.find((d) => d.column === col);
+                    const isSelected = !!displayItem;
+                    return (
+                      <div key={col} className="flex items-center gap-2">
+                        <input
+                          type="checkbox"
+                          checked={isSelected}
+                          onChange={(e) => {
+                            const currentDisplay = localConfig.material?.displayColumns || [];
+                            const newDisplay = e.target.checked
+                              ? [...currentDisplay, { column: col, label: col }]
+                              : currentDisplay.filter((d) => d.column !== col);
+                            handleMaterialChange("displayColumns", newDisplay);
+                          }}
+                          className="h-3 w-3 shrink-0"
+                        />
+                        <span className="w-20 shrink-0 text-[10px]">{col}</span>
+                        {isSelected && (
+                          <Input
+                            value={displayItem?.label || col}
+                            onChange={(e) => {
+                              const currentDisplay = localConfig.material?.displayColumns || [];
+                              const newDisplay = currentDisplay.map((d) =>
+                                d.column === col ? { ...d, label: e.target.value } : d,
+                              );
+                              handleMaterialChange("displayColumns", newDisplay);
+                            }}
+                            placeholder="표시명 입력..."
+                            className="h-6 flex-1 text-[10px]"
+                          />
+                        )}
+                      </div>
+                    );
+                  })}
+                </div>
+              </div>
+            </>
+          )}
+        </CardContent>
+      </Card>
+
+      {/* 적용 버튼 */}
+      <div className="flex justify-end">
+        <Button onClick={handleApplyConfig} className="h-10 gap-2 text-sm font-medium">
+          설정 적용
+        </Button>
+      </div>
+    </div>
+  );
+}
diff --git a/frontend/components/admin/dashboard/widgets/yard-3d/spatialContainment.ts b/frontend/components/admin/dashboard/widgets/yard-3d/spatialContainment.ts
new file mode 100644
index 00000000..098d33ee
--- /dev/null
+++ b/frontend/components/admin/dashboard/widgets/yard-3d/spatialContainment.ts
@@ -0,0 +1,164 @@
+/**
+ * 공간적 종속성 검증 유틸리티
+ * 
+ * 하위 영역이 상위 영역 내부에 배치되는지 검증
+ */
+
+export interface SpatialObject {
+  id: number;
+  position: { x: number; y: number; z: number };
+  size: { x: number; y: number; z: number };
+  hierarchyLevel: number;
+  parentId?: number;
+  parentKey?: string; // 외부 DB 키 (데이터 바인딩용)
+}
+
+/**
+ * 객체 A가 객체 B 안에 포함되는지 확인 (AABB)
+ */
+export function isContainedIn(child: SpatialObject, parent: SpatialObject): boolean {
+  // AABB (Axis-Aligned Bounding Box) 계산
+  const childMin = {
+    x: child.position.x - child.size.x / 2,
+    z: child.position.z - child.size.z / 2,
+  };
+  const childMax = {
+    x: child.position.x + child.size.x / 2,
+    z: child.position.z + child.size.z / 2,
+  };
+
+  const parentMin = {
+    x: parent.position.x - parent.size.x / 2,
+    z: parent.position.z - parent.size.z / 2,
+  };
+  const parentMax = {
+    x: parent.position.x + parent.size.x / 2,
+    z: parent.position.z + parent.size.z / 2,
+  };
+
+  // 자식 객체의 모든 모서리가 부모 객체 내부에 있어야 함 (XZ 평면에서)
+  return (
+    childMin.x >= parentMin.x &&
+    childMax.x <= parentMax.x &&
+    childMin.z >= parentMin.z &&
+    childMax.z <= parentMax.z
+  );
+}
+
+/**
+ * 드래그 시 부모 영역을 찾아서 검증
+ * @param child 드래그 중인 자식 객체
+ * @param allObjects 모든 배치된 객체들
+ * @param hierarchyLevels 계층 레벨 설정 (1, 2, 3, ...)
+ * @returns 유효한 부모 객체 또는 null
+ */
+export function findValidParent(
+  child: SpatialObject,
+  allObjects: SpatialObject[],
+  hierarchyLevels: number
+): SpatialObject | null {
+  // 최상위 레벨(레벨 1)은 부모가 없음
+  if (child.hierarchyLevel === 1) {
+    return null;
+  }
+
+  // 부모 레벨 (자신보다 1단계 위)
+  const parentLevel = child.hierarchyLevel - 1;
+
+  // 부모 레벨의 모든 객체 중에서 포함하는 객체 찾기
+  const possibleParents = allObjects.filter(
+    (obj) => obj.hierarchyLevel === parentLevel
+  );
+
+  for (const parent of possibleParents) {
+    if (isContainedIn(child, parent)) {
+      return parent;
+    }
+  }
+
+  // 포함하는 부모가 없으면 null
+  return null;
+}
+
+/**
+ * 드래그 종료 시 공간적 종속성 검증
+ * @param child 드래그 종료된 자식 객체
+ * @param allObjects 모든 배치된 객체들
+ * @returns { valid: boolean, parent: SpatialObject | null }
+ */
+export function validateSpatialContainment(
+  child: SpatialObject,
+  allObjects: SpatialObject[]
+): { valid: boolean; parent: SpatialObject | null } {
+  // 최상위 레벨은 항상 유효
+  if (child.hierarchyLevel === 1) {
+    return { valid: true, parent: null };
+  }
+
+  const parent = findValidParent(child, allObjects, child.hierarchyLevel);
+
+  return {
+    valid: parent !== null,
+    parent: parent,
+  };
+}
+
+/**
+ * 부모 객체 이동 시 모든 자식 객체의 위치 재계산
+ * @param parent 이동한 부모 객체
+ * @param oldPosition 이전 위치
+ * @param newPosition 새 위치
+ * @param allObjects 모든 배치된 객체들
+ * @returns 업데이트된 자식 객체 배열
+ */
+export function updateChildrenPositions(
+  parent: SpatialObject,
+  oldPosition: { x: number; y: number; z: number },
+  newPosition: { x: number; y: number; z: number },
+  allObjects: SpatialObject[]
+): SpatialObject[] {
+  const delta = {
+    x: newPosition.x - oldPosition.x,
+    y: newPosition.y - oldPosition.y,
+    z: newPosition.z - oldPosition.z,
+  };
+
+  // 직계 자식 (부모 ID가 일치하는 객체)
+  const directChildren = allObjects.filter(
+    (obj) => obj.parentId === parent.id
+  );
+
+  // 자식들의 위치 업데이트
+  return directChildren.map((child) => ({
+    ...child,
+    position: {
+      x: child.position.x + delta.x,
+      y: child.position.y + delta.y,
+      z: child.position.z + delta.z,
+    },
+  }));
+}
+
+/**
+ * 특정 객체의 모든 하위 자손 찾기 (재귀)
+ * @param parentId 부모 객체 ID
+ * @param allObjects 모든 배치된 객체들
+ * @returns 모든 하위 자손 객체 배열
+ */
+export function getAllDescendants(
+  parentId: number,
+  allObjects: SpatialObject[]
+): SpatialObject[] {
+  const directChildren = allObjects.filter((obj) => obj.parentId === parentId);
+  
+  let descendants = [...directChildren];
+  
+  // 재귀적으로 손자, 증손자... 찾기
+  for (const child of directChildren) {
+    const grandChildren = getAllDescendants(child.id, allObjects);
+    descendants = [...descendants, ...grandChildren];
+  }
+  
+  return descendants;
+}
+
diff --git a/frontend/components/dashboard/widgets/MapTestWidgetV2.tsx b/frontend/components/dashboard/widgets/MapTestWidgetV2.tsx
index 694cba79..9cb2aa39 100644
--- a/frontend/components/dashboard/widgets/MapTestWidgetV2.tsx
+++ b/frontend/components/dashboard/widgets/MapTestWidgetV2.tsx
@@ -424,7 +424,7 @@ export default function MapTestWidgetV2({ element }: MapTestWidgetV2Props) {
         const firstCoord = row.coordinates[0];
         if (Array.isArray(firstCoord) && firstCoord.length === 2) {
           polygons.push({
-            id: row.id || row.code || `polygon-${index}`,
+            id: `${sourceName}-polygon-${index}-${row.code || row.id || Date.now()}`, // 고유 ID 생성
             name: row.name || row.title || `영역 ${index + 1}`,
             coordinates: row.coordinates as [number, number][],
             status: row.status || row.level,
@@ -499,9 +499,8 @@ export default function MapTestWidgetV2({ element }: MapTestWidgetV2Props) {
       if (lat !== undefined && lng !== undefined && (mapDisplayType as string) !== "polygon") {
         markers.push({
           // 진행 방향(heading) 계산을 위해 ID는 새로고침마다 바뀌지 않도록 고정값 사용
-          // - row.id / row.code가 있으면 그 값을 사용
-          // - 없으면 sourceName과 index 조합으로 고정 ID 생성
-          id: row.id || row.code || `${sourceName}-marker-${index}`,
+          // 중복 방지를 위해 sourceName과 index를 조합하여 고유 ID 생성
+          id: `${sourceName}-${row.id || row.code || "marker"}-${index}`,
           lat: Number(lat),
           lng: Number(lng),
           latitude: Number(lat),
@@ -1264,14 +1263,15 @@ export default function MapTestWidgetV2({ element }: MapTestWidgetV2Props) {
 
             {/* 마커 렌더링 */}
             {markers.map((marker) => {
-              // 첫 번째 데이터 소스의 마커 종류 가져오기
-              const firstDataSource = dataSources?.[0];
-              const markerType = firstDataSource?.markerType || "circle";
+              // 마커의 소스에 해당하는 데이터 소스 찾기
+              const sourceDataSource = dataSources?.find((ds) => ds.name === marker.source) || dataSources?.[0];
+              const markerType = sourceDataSource?.markerType || "circle";
 
               let markerIcon: any;
               if (typeof window !== "undefined") {
                 const L = require("leaflet");
-                const heading = marker.heading || 0;
+                // heading이 없거나 0일 때 기본값 90(동쪽/오른쪽)으로 설정하여 처음에 오른쪽을 보게 함
+                const heading = marker.heading || 90;
 
                 if (markerType === "arrow") {
                   // 화살표 마커
@@ -1303,6 +1303,9 @@ export default function MapTestWidgetV2({ element }: MapTestWidgetV2Props) {
                   });
                 } else if (markerType === "truck") {
                   // 트럭 마커
+                  // 트럭 아이콘이 오른쪽(90도)을 보고 있으므로, 북쪽(0도)으로 가려면 -90도 회전 필요
+                  const rotation = heading - 90;
+
                   markerIcon = L.divIcon({
                     className: "custom-truck-marker",
                     html: `
@@ -1312,11 +1315,11 @@ export default function MapTestWidgetV2({ element }: MapTestWidgetV2Props) {
                         display: flex;
                         align-items: center;
                         justify-content: center;
-                        transform: translate(-50%, -50%) rotate(${heading}deg);
+                        transform: translate(-50%, -50%) rotate(${rotation}deg);
                         filter: drop-shadow(0 2px 4px rgba(0,0,0,0.3));
                       ">
                         <svg width="48" height="48" viewBox="0 0 40 40" xmlns="http://www.w3.org/2000/svg">
-                          <g transform="rotate(-90 20 20)">
+                          <g>
                             <!-- 트럭 적재함 -->
                             <rect 
                               x="10" 
diff --git a/frontend/components/dashboard/widgets/RiskAlertTestWidget.tsx b/frontend/components/dashboard/widgets/RiskAlertTestWidget.tsx
index df8bf098..30ee99a5 100644
--- a/frontend/components/dashboard/widgets/RiskAlertTestWidget.tsx
+++ b/frontend/components/dashboard/widgets/RiskAlertTestWidget.tsx
@@ -377,8 +377,8 @@ export default function RiskAlertTestWidget({ element }: RiskAlertTestWidgetProp
         new Date().toISOString();
 
       const alert: Alert = {
-        id: row.id || row.alert_id || row.incidentId || row.eventId || 
-          row.code || row.subCode || `${sourceName}-${index}-${Date.now()}`,
+        // 중복 방지를 위해 소스명과 인덱스를 포함하여 고유 ID 생성
+        id: `${sourceName}-${index}-${row.id || row.alert_id || row.incidentId || row.eventId || row.code || row.subCode || Date.now()}`,
         type,
         severity,
         title,
@@ -614,8 +614,9 @@ export default function RiskAlertTestWidget({ element }: RiskAlertTestWidgetProp
             <p className="text-sm">알림이 없습니다</p>
           </div>
         ) : (
-          filteredAlerts.map((alert) => (
-            <Card key={alert.id} className="p-2">
+          filteredAlerts.map((alert, idx) => (
+            // key 중복 방지를 위해 인덱스 추가
+            <Card key={`${alert.id}-${idx}`} className="p-2">
               <div className="flex items-start gap-2">
                 <div className={`mt-0.5 rounded-full p-1 ${alert.severity === "high" ? "bg-destructive/10 text-destructive" : alert.severity === "medium" ? "bg-warning/10 text-warning" : "bg-primary/10 text-primary"}`}>
                   {getTypeIcon(alert.type)}
diff --git a/frontend/lib/api/digitalTwin.ts b/frontend/lib/api/digitalTwin.ts
index b58b0206..c20525b4 100644
--- a/frontend/lib/api/digitalTwin.ts
+++ b/frontend/lib/api/digitalTwin.ts
@@ -91,9 +91,7 @@ export const deleteLayout = async (id: number): Promise<ApiResponse<void>> => {
 
 // ========== 외부 DB 테이블 조회 API ==========
 
-export const getTables = async (
-  connectionId: number
-): Promise<ApiResponse<Array<{ table_name: string }>>> => {
+export const getTables = async (connectionId: number): Promise<ApiResponse<Array<{ table_name: string }>>> => {
   try {
     const response = await apiClient.get(`/digital-twin/data/tables/${connectionId}`);
     return response.data;
@@ -105,10 +103,7 @@ export const getTables = async (
   }
 };
 
-export const getTablePreview = async (
-  connectionId: number,
-  tableName: string
-): Promise<ApiResponse<any[]>> => {
+export const getTablePreview = async (connectionId: number, tableName: string): Promise<ApiResponse<any[]>> => {
   try {
     const response = await apiClient.get(`/digital-twin/data/table-preview/${connectionId}/${tableName}`);
     return response.data;
@@ -123,7 +118,10 @@ export const getTablePreview = async (
 // ========== 외부 DB 데이터 조회 API ==========
 
 // 창고 목록 조회
-export const getWarehouses = async (externalDbConnectionId: number, tableName: string): Promise<ApiResponse<Warehouse[]>> => {
+export const getWarehouses = async (
+  externalDbConnectionId: number,
+  tableName: string,
+): Promise<ApiResponse<Warehouse[]>> => {
   try {
     const response = await apiClient.get("/digital-twin/data/warehouses", {
       params: { externalDbConnectionId, tableName },
@@ -138,7 +136,11 @@ export const getWarehouses = async (externalDbConnectionId: number, tableName: s
 };
 
 // Area 목록 조회
-export const getAreas = async (externalDbConnectionId: number, tableName: string, warehouseKey: string): Promise<ApiResponse<Area[]>> => {
+export const getAreas = async (
+  externalDbConnectionId: number,
+  tableName: string,
+  warehouseKey: string,
+): Promise<ApiResponse<Area[]>> => {
   try {
     const response = await apiClient.get("/digital-twin/data/areas", {
       params: { externalDbConnectionId, tableName, warehouseKey },
@@ -174,12 +176,24 @@ export const getLocations = async (
 // 자재 목록 조회 (특정 Location)
 export const getMaterials = async (
   externalDbConnectionId: number,
-  tableName: string,
-  locaKey: string,
+  materialConfig: {
+    tableName: string;
+    keyColumn: string;
+    locationKeyColumn: string;
+    layerColumn?: string;
+    locaKey: string;
+  },
 ): Promise<ApiResponse<MaterialData[]>> => {
   try {
     const response = await apiClient.get("/digital-twin/data/materials", {
-      params: { externalDbConnectionId, tableName, locaKey },
+      params: {
+        externalDbConnectionId,
+        tableName: materialConfig.tableName,
+        keyColumn: materialConfig.keyColumn,
+        locationKeyColumn: materialConfig.locationKeyColumn,
+        layerColumn: materialConfig.layerColumn,
+        locaKey: materialConfig.locaKey,
+      },
     });
     return response.data;
   } catch (error: any) {
@@ -197,12 +211,10 @@ export const getMaterialCounts = async (
   locaKeys: string[],
 ): Promise<ApiResponse<MaterialCount[]>> => {
   try {
-    const response = await apiClient.get("/digital-twin/data/material-counts", {
-      params: {
-        externalDbConnectionId,
-        tableName,
-        locaKeys: locaKeys.join(","),
-      },
+    const response = await apiClient.post("/digital-twin/data/material-counts", {
+      externalDbConnectionId,
+      tableName,
+      locationKeys: locaKeys,
     });
     return response.data;
   } catch (error: any) {
@@ -213,3 +225,59 @@ export const getMaterialCounts = async (
   }
 };
 
+// ========== 동적 계층 구조 API ==========
+
+export interface HierarchyData {
+  warehouse: any[];
+  levels: Array<{
+    level: number;
+    name: string;
+    data: any[];
+  }>;
+  materials: Array<{
+    location_key: string;
+    count: number;
+  }>;
+}
+
+// 전체 계층 데이터 조회
+export const getHierarchyData = async (
+  externalDbConnectionId: number,
+  hierarchyConfig: any,
+): Promise<ApiResponse<HierarchyData>> => {
+  try {
+    const response = await apiClient.post("/digital-twin/data/hierarchy", {
+      externalDbConnectionId,
+      hierarchyConfig: JSON.stringify(hierarchyConfig),
+    });
+    return response.data;
+  } catch (error: any) {
+    return {
+      success: false,
+      error: error.response?.data?.message || error.message,
+    };
+  }
+};
+
+// 특정 부모의 하위 데이터 조회
+export const getChildrenData = async (
+  externalDbConnectionId: number,
+  hierarchyConfig: any,
+  parentLevel: number,
+  parentKey: string,
+): Promise<ApiResponse<any[]>> => {
+  try {
+    const response = await apiClient.post("/digital-twin/data/children", {
+      externalDbConnectionId,
+      hierarchyConfig: JSON.stringify(hierarchyConfig),
+      parentLevel,
+      parentKey,
+    });
+    return response.data;
+  } catch (error: any) {
+    return {
+      success: false,
+      error: error.response?.data?.message || error.message,
+    };
+  }
+};
diff --git a/frontend/types/digitalTwin.ts b/frontend/types/digitalTwin.ts
index b8a3bc1e..4d64e1a2 100644
--- a/frontend/types/digitalTwin.ts
+++ b/frontend/types/digitalTwin.ts
@@ -72,6 +72,11 @@ export interface PlacedObject {
   // 편집 제한
   locked?: boolean; // true면 이동/크기조절 불가
   visible?: boolean;
+
+  // 동적 계층 구조
+  hierarchyLevel?: number; // 1, 2, 3...
+  parentKey?: string; // 부모 객체의 외부 DB 키
+  externalKey?: string; // 자신의 외부 DB 키
 }
 
 // 레이아웃
@@ -82,6 +87,7 @@ export interface DigitalTwinLayout {
   warehouseKey: string; // WAREKEY (예: DY99)
   layoutName: string;
   description?: string;
+  hierarchyConfig?: any; // JSON 설정
   isActive: boolean;
   createdBy?: number;
   updatedBy?: number;