How To Fix CMD_BS_MAT_CHMNG_API051 - Change number &1 already used with revision level &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CMD_BS_MAT_CHMNG_API - Message class for material change management

• Message number: 051

• Message text: Change number &1 already used with revision level &2

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 CMD_BS_MAT_CHMNG_API051 - Change number &1 already used with revision level &2 ?

  The SAP error message CMD_BS_MAT_CHMNG_API051 indicates that a change number (a unique identifier for a change request) has already been used with a specific revision level. This typically occurs in the context of change management processes within SAP, particularly when dealing with material changes or engineering change management (ECM).
  Cause:
  
  Duplicate Change Number: The change number you are trying to use has already been assigned to a different revision level. This can happen if the same change number is mistakenly reused for multiple changes.
  Incorrect Revision Level: The revision level you are trying to assign to the change number does not match the existing record in the system.
  Data Integrity Issues: There may be inconsistencies in the data or configuration settings that lead to this error.
  
  Solution:
  
  
  Check Existing Change Numbers: Review the existing change numbers in the system to ensure that the change number you are trying to use is not already assigned to another revision level. You can do this by navigating to the relevant transaction (e.g., CC01 for creating change numbers) and checking the details.
  
  
  Use a Unique Change Number: If the change number is indeed already in use, consider using a different, unique change number for your current change request.
  
  
  Verify Revision Levels: Ensure that the revision level you are trying to assign is correct and corresponds to the intended change. If necessary, update the revision level to match the existing records.
  
  
  Consult Documentation: Refer to SAP documentation or your organization's change management procedures to understand how change numbers and revision levels should be managed.
  
  
  Contact SAP Support: If you are unable to resolve the issue, consider reaching out to SAP support or your internal SAP helpdesk 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) to manage change numbers effectively.
  Change Management Process: Understanding the overall change management process in your organization can help prevent similar issues in the future.
  User Authorizations: Ensure that you have the necessary authorizations to create or modify change numbers and associated revision levels.
  
  By following these steps, you should be able to address the CMD_BS_MAT_CHMNG_API051 error and proceed with your change management activities in SAP.