diff --git a/src/controllers/PositionController.ts b/src/controllers/PositionController.ts
index ecac4071..30452ae2 100644
--- a/src/controllers/PositionController.ts
+++ b/src/controllers/PositionController.ts
@@ -1514,11 +1514,6 @@ export class PositionController extends Controller {
 
     let maxPosMasterOrder = Math.max(...allLastPosMasterNo.map((pos) => pos.posMasterOrder), 0);
     posMasters.forEach(async (posMaster: any) => {
-      posMaster.orgRootId = null;
-      posMaster.orgChild1Id = null;
-      posMaster.orgChild2Id = null;
-      posMaster.orgChild3Id = null;
-      posMaster.orgChild4Id = null;
       let change = true;
 
       if (requestBody.type == 0) {
@@ -1526,9 +1521,20 @@ export class PositionController extends Controller {
           where: { id: requestBody.id },
         });
         if (org != null) {
-          if (posMaster.orgRootId == org.id) change = false;
+          if (
+            posMaster.orgRootId == org.id &&
+            posMaster.orgChild1Id == null &&
+            posMaster.orgChild2Id == null &&
+            posMaster.orgChild3Id == null &&
+            posMaster.orgChild4Id == null
+          )
+            change = false;
           posMaster.orgRootId = org.id;
           posMaster.orgRevisionId = org.orgRevisionId;
+          posMaster.orgChild1Id = null;
+          posMaster.orgChild2Id = null;
+          posMaster.orgChild3Id = null;
+          posMaster.orgChild4Id = null;
         }
       }
       if (requestBody.type == 1) {
@@ -1536,10 +1542,19 @@ export class PositionController extends Controller {
           where: { id: requestBody.id },
         });
         if (org != null) {
-          if (posMaster.orgChild1Id == org.id) change = false;
+          if (
+            posMaster.orgChild1Id == org.id &&
+            posMaster.orgChild2Id == null &&
+            posMaster.orgChild3Id == null &&
+            posMaster.orgChild4Id == null
+          )
+            change = false;
           posMaster.orgRootId = org.orgRootId;
           posMaster.orgChild1Id = org.id;
           posMaster.orgRevisionId = org.orgRevisionId;
+          posMaster.orgChild2Id = null;
+          posMaster.orgChild3Id = null;
+          posMaster.orgChild4Id = null;
         }
       }
       if (requestBody.type == 2) {
@@ -1547,11 +1562,18 @@ export class PositionController extends Controller {
           where: { id: requestBody.id },
         });
         if (org != null) {
-          if (posMaster.orgChild2Id == org.id) change = false;
+          if (
+            posMaster.orgChild2Id == org.id &&
+            posMaster.orgChild3Id == null &&
+            posMaster.orgChild4Id == null
+          )
+            change = false;
           posMaster.orgRootId = org.orgRootId;
           posMaster.orgChild1Id = org.orgChild1Id;
           posMaster.orgChild2Id = org.id;
           posMaster.orgRevisionId = org.orgRevisionId;
+          posMaster.orgChild3Id = null;
+          posMaster.orgChild4Id = null;
         }
       }
       if (requestBody.type == 3) {
@@ -1559,12 +1581,13 @@ export class PositionController extends Controller {
           where: { id: requestBody.id },
         });
         if (org != null) {
-          if (posMaster.orgChild3Id == org.id) change = false;
+          if (posMaster.orgChild3Id == org.id && posMaster.orgChild4Id == null) change = false;
           posMaster.orgRootId = org.orgRootId;
           posMaster.orgChild1Id = org.orgChild1Id;
           posMaster.orgChild2Id = org.orgChild2Id;
           posMaster.orgChild3Id = org.id;
           posMaster.orgRevisionId = org.orgRevisionId;
+          posMaster.orgChild4Id = null;
         }
       }
       if (requestBody.type == 4) {
@@ -1572,9 +1595,7 @@ export class PositionController extends Controller {
           where: { id: requestBody.id },
         });
         if (org != null) {
-          if (posMaster.orgChild4Id == org.id) {
-            change = false;
-          }
+          if (posMaster.orgChild4Id == org.id) change = false;
           posMaster.orgRootId = org.orgRootId;
           posMaster.orgChild1Id = org.orgChild1Id;
           posMaster.orgChild2Id = org.orgChild2Id;