How To Fix CJ681 - At least one coding mask is already being used

CJ681 - Overview

• Message type: E = Error

• Message class: CJ - Project master data and structure

• Message number: 681

• Message text: At least one coding mask is already being used

What causes this issue?

In this client you can save project numbers and WBS numbers that you
have edited to the database, in order to more effectively use wildcards
for edited numbers.
If you change special characters in an edit screen, for which at least
a project, standard project, version project, WBS element, standard WBS
element or version WBS element exists, the wildcard search help no
longer properly works.

System Response

The system highlights all affected edit screens.

How to fix this error?

Do not change the affected edit screens.
If you cannot avoid changing a special character in an affected edit
screen, you must then start the report R_FILL_POSID_PSPID_EDIT with
TEST = ' '
REORG = 'X'
Make sure that this report does not set a lock and therefore can only
be started if no project, standard project, version project, WBS
element standard WBS element or version WBS element is being processed
at the time.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CJ681 - At least one coding mask is already being used ?

  The SAP error message CJ681, which states "At least one coding mask is already being used," typically occurs in the context of project management and controlling within SAP, particularly when dealing with project structures and coding masks (also known as "coding templates" or "coding schemes"). This error indicates that the coding mask you are trying to create or modify is already in use by another project or element.
  
  Cause:
  
  Existing Usage: The coding mask you are trying to create or modify is already assigned to one or more projects or WBS (Work Breakdown Structure) elements.
  Locked Entries: The coding mask may be locked due to ongoing transactions or processes that are using it.
  
  Configuration Issues: There may be configuration settings that prevent the modification of the coding mask if it is already in use.
  
  
  Solution:
  
  
  Check Usage: 
  
  Use transaction codes like CJ20N (Project Builder) or CJ03 (Display WBS Element) to check if the coding mask is