How To Fix CJ454 - Key "&" has been assigned several times (& WBS elements)

CJ454 - Overview

• Message type: E = Error

• Message class: CJ - Project master data and structure

• Message number: 454

• Message text: Key "&" has been assigned several times (& WBS elements)

What causes this issue?

You have entered the identifier "&V1&" for &V2& WBS elements. For this
reason, the WBS element could not be included.

System Response

INCLUDE 'NA_ALLG_NOFUNKTION' OBJECT DOKU ID TX

How to fix this error?

Check the WBS element identifer and make any necessary changes.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CJ454 - Key "&" has been assigned several times (& WBS elements) ?

  The SAP error message CJ454 indicates that a specific key (in this case, a WBS element) has been assigned multiple times in a way that is not allowed. This typically occurs in the context of project management within SAP, particularly when dealing with Work Breakdown Structures (WBS) and their assignments.
  
  Cause:
  The error occurs when:
  
  A WBS element is assigned to more than one project or cost object in a way that violates the system's rules.
  There may be duplicate entries in the assignment of WBS elements, leading to conflicts.
  The configuration of the project structure may not allow for multiple assignments of the same WBS element.
  
  
  Solution:
  To resolve the CJ454 error, you can take the following steps:
  
  
  Check Assignments: Review the assignments of the WBS elements in question. Ensure that each WBS element is assigned uniquely and not duplicated across different projects or cost objects.
  
  
  Identify Duplicates: Use transaction codes like CJ20N (Project Builder) or CJ03 (Display