How To Fix KE251 - Derivation structure &1 is currently locked by user &2

SAP Error Message - Details

• Message type: E = Error

• Message class: KE -

• Message number: 251

• Message text: Derivation structure &1 is currently locked by user &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message KE251 - Derivation structure &1 is currently locked by user &2 ?

  The SAP error message KE251 indicates that a derivation structure is currently locked by another user. This typically occurs in the context of SAP Controlling (CO) when a user attempts to access or modify a derivation structure that is being edited or processed by someone else.
  Cause:
  
  Concurrent Access: Another user is currently editing or has locked the derivation structure.
  System Lock: The system may have a lock on the derivation structure due to a previous transaction that did not complete properly.
  User Session: A user may have an active session that has not been properly closed, leading to a lock on the derivation structure.
  
  Solution:
  
  Wait and Retry: If the lock is temporary, wait for the other user to finish their work and try again later.
  Identify the Locking User: Use transaction code SM12 to check for locks in the system. You can search for the specific derivation structure and see which user is holding the lock.
  Contact the Locking User: If possible, communicate with the user who is holding the lock to understand their timeline for releasing it.
  Release the Lock: If you have the necessary authorizations, you can manually release the lock using transaction SM12. However, this should be done with caution, as it may disrupt the other user's work.
  Check for Background Jobs: Sometimes, background jobs may hold locks. Use transaction SM37 to check for any running jobs that might be affecting the derivation structure.
  System Restart: In rare cases, if the lock persists and cannot be resolved, a system restart may be necessary, but this should be done as a last resort and with proper authorization.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: To view and manage locks.
  SM37: To check background jobs.
  
  
  User Roles and Authorizations: Ensure that users have the appropriate roles and authorizations to access and modify derivation structures.
  Documentation: Refer to SAP documentation for more details on managing locks and handling errors in the Controlling module.
  
  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.