diff --git a/src/controllers/PositionController.ts b/src/controllers/PositionController.ts
index c17ccb0c..56415296 100644
--- a/src/controllers/PositionController.ts
+++ b/src/controllers/PositionController.ts
@@ -701,23 +701,33 @@ export class PositionController extends Controller {
       );
     }
     
-    // let fullPosRootName = `CONCAT(posMaster.orgRootShortName).trim() + (requestBody.posMasterNo))`;
-    // let filterRootName = `CONCAT(posMaster.orgRootShortName,posMaster.posMasterNo)`;
+    let fullPosRootName = `CONCAT(posMaster.orgRootShortName).trim() + (requestBody.posMasterNo))`;
+    let filterRootName = `CONCAT(posMaster.orgRootShortName,posMaster.posMasterNo)`;
+    let fullPosChild1Name = `CONCAT(posMaster.orgChild1ShortName).trim() + (requestBody.posMasterNo))`;
+    let filterChild1Name = `CONCAT(posMaster.orgChild1ShortName,posMaster.posMasterNo)`;
+    let fullPosChild2Name = `CONCAT(posMaster.orgChild2ShortName).trim() + (requestBody.posMasterNo))`;
+    let filterChild2Name = `CONCAT(posMaster.orgChild2ShortName,posMaster.posMasterNo)`;
+    let fullPosChild3Name = `CONCAT(posMaster.orgChild3ShortName).trim() + (requestBody.posMasterNo))`;
+    let filterChild3Name = `CONCAT(posMaster.orgChild3ShortName,posMaster.posMasterNo)`;
+    let fullPosChild4Name = `CONCAT(posMaster.orgChild4ShortName).trim() + (requestBody.posMasterNo))`;
+    let filterChild4Name = `CONCAT(posMaster.orgChild4ShortName,posMaster.posMasterNo)`;
 
-    // const chk_FullName0 = await AppDataSource.getRepository(PosMaster)  
-    // .createQueryBuilder("posMaster")
-    // .from("posMaster", "posMaster")
-    // .where("posMaster.orgRevisionId = :orgRevisionId", { orgRevisionId: posMaster.orgRevisionId })
-    // .andWhere("posMaster.orgRootShortName = :orgRootShortName", { orgRootShortName: SName })
-    // .andWhere("posMaster.orgChild1Id IS NULL")
-    // .andWhere(`${filterRootName} = :fullPosRootName`, { fullPosRootName });
-    
-    // if (chk_FullName0 != null) {
-    //   throw new HttpError(
-    //     HttpStatusCode.INTERNAL_SERVER_ERROR,
-    //     "ไม่สามารถเพิ่มชื่อตำแหน่งซ้ำกันได้",
-    //   );
-    // }
+    const chk_FullName0 = await AppDataSource.getRepository(PosMaster)
+    .createQueryBuilder("posMaster")
+    .where("posMaster.orgRevisionId = :orgRevisionId", { orgRevisionId: posMaster.orgRevisionId })
+    .andWhere(`CONCAT(posMaster.orgRootShortName.trim(), :posMasterNo) = :fullPosRootName`, { posMasterNo: requestBody.posMasterNo, fullPosRootName })
+    .andWhere(`CONCAT(posMaster.orgChild1ShortName.trim(), :posMasterNo) = :fullPosChild1Name`, { posMasterNo: requestBody.posMasterNo, fullPosChild1Name })
+    .andWhere(`CONCAT(posMaster.orgChild2ShortName.trim(), :posMasterNo) = :fullPosChild2Name`, { posMasterNo: requestBody.posMasterNo, fullPosChild2Name })
+    .andWhere(`CONCAT(posMaster.orgChild3ShortName.trim(), :posMasterNo) = :fullPosChild3Name`, { posMasterNo: requestBody.posMasterNo, fullPosChild3Name })
+    .andWhere(`CONCAT(posMaster.orgChild4ShortName.trim(), :posMasterNo) = :fullPosChild4Name`, { posMasterNo: requestBody.posMasterNo, fullPosChild4Name })
+    .getOne();
+  
+    if (chk_FullName0 != null) {
+      throw new HttpError(
+        HttpStatusCode.INTERNAL_SERVER_ERROR,
+        "ไม่สามารถเพิ่มชื่อตำแหน่งซ้ำกันได้",
+      );
+    }
 
     // const chk_FullName1 = await AppDataSource.getRepository(PosMaster)
     // .createQueryBuilder("posMaster")