diff --git a/src/controllers/PositionController.ts b/src/controllers/PositionController.ts
index f85d4706..241a6219 100644
--- a/src/controllers/PositionController.ts
+++ b/src/controllers/PositionController.ts
@@ -841,6 +841,7 @@ export class PositionController extends Controller {
         where: {
           orgChild3: { orgChild3ShortName: SName },
           posMasterNo: requestBody.posMasterNo,
+          orgChild4Id: IsNull(),
           id: Not(posMaster.id),
         },
       });
@@ -855,6 +856,7 @@ export class PositionController extends Controller {
         where: {
           orgChild2: { orgChild2ShortName: SName },
           posMasterNo: requestBody.posMasterNo,
+          orgChild3Id: IsNull(),
           id: Not(posMaster.id),
         },
       });
@@ -869,6 +871,7 @@ export class PositionController extends Controller {
         where: {
           orgChild1: { orgChild1ShortName: SName },
           posMasterNo: requestBody.posMasterNo,
+          orgChild2Id: IsNull(),
           id: Not(posMaster.id),
         },
       });
@@ -883,6 +886,7 @@ export class PositionController extends Controller {
         where: {
           orgRoot: { orgRootShortName: SName },
           posMasterNo: requestBody.posMasterNo,
+          orgChild1Id: IsNull(),
           id: Not(posMaster.id),
         },
       });
@@ -1736,6 +1740,47 @@ export class PositionController extends Controller {
             posMaster.orgRevisionId = org.orgRevisionId;
           }
         }
+          // let org = null;
+          // let repo = null;
+        
+          // switch (requestBody.type) {
+          //   case 1:
+          //     repo = this.child1Repository;
+          //     break;
+          //   case 2:
+          //     repo = this.child2Repository;
+          //     break;
+          //   case 3:
+          //     repo = this.child3Repository;
+          //     break;
+          //   case 4:
+          //     repo = this.child4Repository;
+          //     break;
+          //   default:
+          //     throw new Error('Invalid type');
+          // }
+        
+          // org = await repo.findOne({ where: { id: requestBody.id } });
+        
+          // if (org != null) {
+          //   const posMasterCheck = await this.posMasterRepository.findOne({
+          //     where: {
+          //       [`orgChild${requestBody.type}Id`]: org.id,
+          //       posMasterNo: posMaster.posMasterNo,
+          //       orgChild2Id: (requestBody.type > 1) ? IsNull() : undefined,
+          //       orgChild3Id: (requestBody.type > 2) ? IsNull() : undefined,
+          //       orgChild4Id: (requestBody.type > 3) ? IsNull() : undefined,
+          //     },
+          //   });
+        
+          //   if (posMasterCheck != null) {
+          //     throw new HttpError(
+          //       HttpStatusCode.NOT_FOUND,
+          //       `เลขที่ตำแหน่งมีอยู่ในระบบอยู่แล้ว`,
+          //     );
+          //   }
+          // }
+        
         if (change == true) {
           posMaster.posMasterOrder = maxPosMasterOrder += 1;
           posMaster.createdUserId = request.user.sub;