How To Fix CLMM021 - Change number & is not valid

SAP Error Message - Details

• Message type: E = Error

• Message class: CLMM - Messages for Mass Processing in Classification System

• Message number: 021

• Message text: Change number & is not valid

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message CLMM021 - Change number & is not valid ?

  The SAP error message CLMM021 indicates that the change number specified is not valid. This error typically occurs in the context of change management within SAP, particularly when working with change numbers in the Change Management module (often related to the Logistics or Production Planning areas).
  Cause:
  
  Invalid Change Number: The change number entered does not exist in the system or is not active.
  Authorization Issues: The user may not have the necessary authorizations to access or use the specified change number.
  Status of Change Number: The change number may be in a status that does not allow it to be used (e.g., it may be locked or not yet released).
  Incorrect Input: There may be a typographical error in the change number entered.
  
  Solution:
  
  Verify Change Number: Check the change number for correctness. Ensure that it is entered correctly without any typographical errors.
  Check Change Number Status: Use transaction codes like CC02 (Change Number) to check the status of the change number. Ensure it is active and not locked.
  Authorization Check: Ensure that the user has the necessary authorizations to access and use the change number. This may involve checking user roles and permissions.
  Consult Documentation: Refer to the SAP documentation or help files for specific details on the change number and its usage.
  Contact Support: If the issue persists, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CC01 (Create Change Number), CC02 (Change Change Number), and CC03 (Display Change Number).
  Change Management Process: Understanding the overall change management process in SAP can help in troubleshooting issues related to change numbers.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide additional guidance related to the error message CLMM021.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution.