How To Fix KN136 - Maintenance of selection screens locked by user &

SAP Error Message - Details

• Message type: E = Error

• Message class: KN - Reporting for Costing

• Message number: 136

• Message text: Maintenance of selection screens locked by user &

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message KN136 - Maintenance of selection screens locked by user & ?

  The SAP error message KN136, which states "Maintenance of selection screens locked by user &," typically occurs when a user attempts to access or modify a selection screen that is currently locked by another user. This can happen in various SAP transactions, particularly in the context of customizing or maintaining selection screens for reports or programs.
  Cause:
  
  User Lock: The selection screen is being edited or maintained by another user, and SAP locks it to prevent simultaneous changes that could lead to data inconsistency.
  Session Timeout: If a user has left a session open for an extended period, it may still hold a lock on the selection screen.
  Technical Issues: Occasionally, technical issues or bugs in the system can lead to locks not being released properly.
  
  Solution:
  
  Wait and Retry: If the lock is temporary, waiting for the other user to finish their work and release the lock may resolve the issue.
  Identify the Locking User: You can use transaction code SM12 to check which user is currently holding the lock. This transaction allows you to view and manage locks in the system.
  
  Enter the relevant object name or user ID to find the lock.
  If necessary, you can contact the user holding the lock to coordinate access.
  
  
  Release the Lock: If you have the necessary authorizations and it is appropriate to do so, you can manually release the lock from transaction SM12. However, this should be done with caution to avoid disrupting another user's work.
  Check for Background Jobs: Sometimes, background jobs may hold locks. You can check transaction SM37 to see if any jobs are running that might be causing the lock.
  System Restart: In rare cases, a system restart may be required to clear persistent locks, but this should be done by a system administrator and typically as a last resort.
  
  Related Information:
  
  User Roles and Authorizations: Ensure that users have the appropriate roles and authorizations to access and modify selection screens.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or bugs related to selection screen locks.
  Documentation: Review SAP documentation or help resources for best practices on managing selection screens and understanding 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.