How To Fix CJ401 - You cannot shift WBS element & into its own sub-hierarchy

CJ401 - Overview

• Message type: E = Error

• Message class: CJ - Project master data and structure

• Message number: 401

• Message text: You cannot shift WBS element & into its own sub-hierarchy

What causes this issue?

You attempted to shift a WBS element &V1& to a subordinate WBS element.
You cannot shift WBS elements within their own sub-hierarchy.

System Response

INCLUDE 'NA_ALLG_NOVERARBEITUNG' OBJECT DOKU ID TX

How to fix this error?

INCLUDE 'NA_ALLG_MOEGLICH' OBJECT DOKU ID TX
RESET N1
Place the cursor on another WBS element and press <ZH>Enter</>.
Select the function <ZH>Cancel</>.

Error message extract from SAP system. Copyright SAP SE.

CJ401 - Details

• The SAP error message CJ401 ("You cannot shift WBS element & into its own sub-hierarchy") typically occurs when you attempt to move a Work Breakdown Structure (WBS) element into a position within its own hierarchy, which is not allowed. This is a logical restriction in SAP to prevent circular references and maintain the integrity of the project structure.
  
  Cause:
  The error arises when:
  
  You are trying to move a WBS element to a new parent that is a descendant of the WBS element itself.
  The system detects that the move would create a loop in the hierarchy, which is not permissible.
  
  
  Solution:
  To resolve this error, you should:
  
  Check the Hierarchy: Review the current hierarchy of the WBS elements involved. Ensure that the parent you are trying to move the WBS element to is not a descendant of the WBS element itself.
  Select a Different Parent: If you need to move the WBS element, choose a different parent