How To Fix MC020 - Matchcode object & is locked by user &

SAP Error Message - Details

• Message type: E = Error

• Message class: MC - Aggregate: views, matchcodes, lock objects

• Message number: 020

• Message text: Matchcode object & is locked by user &

What causes this issue?

A user is just processing the matchcode object. For reasons of
consistency, this object is locked for other users for the duration
of the processing.

System Response

The object cannot be processed at the moment.

How to fix this error?

Try again in a few minutes.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MC020 - Matchcode object & is locked by user & ?

  The SAP error message MC020 indicates that a matchcode object is locked by a specific user. This typically occurs when a user is currently using or has opened a matchcode object for editing, preventing other users from accessing or modifying it.
  Cause:
  
  User Lock: The matchcode object is being edited or accessed by another user, which locks it for other users.
  Incomplete Session: A previous session may not have been closed properly, leaving the matchcode object in a locked state.
  System Error: Occasionally, system errors or crashes can lead to locks that are not released properly.
  
  Solution:
  
  Wait and Retry: If the lock is temporary, waiting for the other user to finish their work may resolve the issue.
  Identify the Locking User: Use transaction code SM12 to check for locks. You can search for the matchcode object and see which user has it locked.
  Release the Lock: If you have the necessary authorizations, you can manually release the lock from transaction SM12. Be cautious when doing this, as it may disrupt the work of the user who is currently using the matchcode object.
  Check for Background Jobs: Sometimes, background jobs may hold locks. Check if any jobs are running that might be using the matchcode object.
  Contact the User: If you identify the user who has the lock, you can contact them to see if they can release it or if they are done with their task.
  System Restart: In rare cases, a system restart may be necessary to clear persistent locks, but this should be done with caution and typically as a last resort.
  
  Related Information:
  
  Transaction Codes: 
  
  SM12: To view and manage locks.
  SM21: To check system logs for any related errors.
  SE11: To view the matchcode object definition.
  
  
  Authorization: Ensure you have the necessary authorizations to view and manage locks in the system.
  Documentation: Refer to SAP Help documentation for more details on matchcode objects and locking mechanisms.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or SAP support for further assistance.