How To Fix CM098 - Change number collision-BOM item

SAP Error Message - Details

• Message type: E = Error

• Message class: CM - Task list messages: Material component allocations

• Message number: 098

• Message text: Change number collision-BOM item

What causes this issue?

You are attempting to change a task list or a standard network with a
change number and you also want to change the bill of material assigned
to it. However, the bill of material items were already changed with a
different change number which has the same valid-from date as the
change number for your task list.
Therefore, you cannot change the bill of material items.

System Response

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

How to fix this error?

Change your task list or standard network with a different change
number. Note the valid-from date of the change number.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CM098 - Change number collision-BOM item ?

  The SAP error message CM098, which states "Change number collision - BOM item," typically occurs when there is a conflict with change numbers in the Bill of Materials (BOM) during a change process. This can happen when multiple users or processes are trying to make changes to the same BOM item simultaneously, or when there are inconsistencies in the change number assignment.
  Cause:
  
  Concurrent Changes: Multiple users are attempting to change the same BOM item with different change numbers at the same time.
  Change Number Assignment: The change number assigned to the BOM item may not be valid or may have been deleted.
  Locking Issues: The BOM item may be locked by another user or process, preventing changes from being made.
  Incorrect Configuration: The configuration settings for change management may not be set up correctly, leading to conflicts.
  
  Solution:
  
  Check for Locks: Verify if the BOM item is locked by another user. You can use transaction code SM12 to check for locks and release them if necessary.
  Review Change Numbers: Ensure that the change number you are using is valid and not already in use by another process. You can check this in the change number management settings.
  Coordinate Changes: If multiple users are working on the same BOM item, coordinate the changes to avoid conflicts. Implement a process to manage changes more effectively.
  Use the Correct Change Number: Make sure you are using the correct change number that is assigned to the BOM item you are trying to modify.
  Check Configuration: Review the configuration settings for change management in your SAP system to ensure they are set up correctly.
  Retry the Operation: After resolving any conflicts or issues, retry the operation that triggered the error.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CS01 (Create BOM), CS02 (Change BOM), and CS03 (Display BOM) for managing BOMs.
  Change Management: Understand the change management process in SAP, including how change numbers are created and assigned.
  User Roles and Authorizations: Ensure that users have the appropriate roles and authorizations to make changes to BOM items.
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to this error message.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP support team or refer to SAP documentation for further troubleshooting steps.