How To Fix CM021 - Change no. & is not valid for component allocation.

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 021

• Message text: Change no. & is not valid for component allocation.

What causes this issue?

You want to allocate material components and have entered a change
number. In this case, the change number must be active for the object
type "task list" as well as for the object type "bill of material".
The change number entered is not valid for the object type "bill of
material".

How to fix this error?

Maintain the change number. From the main menu, choose <ZH>Logistics
</> -> <ZH>Central functions</> -> <ZH>Engin. change mgmt.</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CM021 - Change no. & is not valid for component allocation. ?

  The SAP error message CM021, which states "Change no. & is not valid for component allocation," typically occurs in the context of change management and production planning within SAP. This error indicates that the change number you are trying to use is not valid for the component allocation process. Here are some potential causes, solutions, and related information for this error:
  Causes:
  
  Invalid Change Number: The change number you are trying to use may not exist or may not be active.
  Change Number Status: The change number might be in a status that does not allow it to be used for component allocation (e.g., it may be locked or not released).
  Component Allocation Not Allowed: The change number may not be applicable for the specific component or material you are trying to allocate.
  Authorization Issues: The user may not have the necessary authorizations to use the specified change number.
  Configuration Issues: There may be configuration settings in the system that restrict the use of certain change numbers for component allocation.
  
  Solutions:
  
  Verify Change Number: Check if the change number you are using is valid and exists in the system. You can do this by navigating to the change management transaction (e.g., transaction code CC03).
  Check Status: Ensure that the change number is in a status that allows it to be used for component allocation. If it is not released, you may need to release it.
  Review Component Allocation: Make sure that the change number is applicable for the specific component or material you are trying to allocate. You may need to consult with your change management team.
  Authorization Check: Ensure that you have the necessary authorizations to use the change number. If not, contact your SAP security team to request the required permissions.
  Consult Configuration: If the issue persists, consult with your SAP configuration team to review the settings related to change management and component allocation.
  
  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).
  Documentation: Refer to SAP documentation or help files for detailed information on change management processes and component allocation.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or bugs related to this error message.
  Support: If you are unable to resolve the issue, consider reaching out to SAP support or your internal SAP support team for further assistance.
  
  By following these steps, you should be able to identify the cause of the CM021 error and implement a suitable solution.