How To Fix /SEHS/DG_DG311 - Change number &1 is already locked

SAP Error Message - Details

• Message type: E = Error

• Message class: /SEHS/DG_DG -

• Message number: 311

• Message text: Change number &1 is already locked

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SEHS/DG_DG311 - Change number &1 is already locked ?

  The SAP error message /SEHS/DG_DG311 Change number &1 is already locked typically occurs in the context of change management within the SAP system, particularly when dealing with change numbers in the Engineering Change Management (ECM) module. This error indicates that the change number you are trying to access or modify is currently locked by another user or process.
  Causes:
  
  Concurrent Access: Another user or process is currently editing or has locked the change number.
  Incomplete Transactions: A previous transaction involving the change number was not completed properly, leaving it in a locked state.
  System Errors: Technical issues or system errors may have caused the change number to remain locked.
  User Permissions: The user may not have the necessary permissions to unlock or modify the change number.
  
  Solutions:
  
  
  Check Lock Entries:
  
  Use transaction code SM12 to check for lock entries related to the change number. You can search for the specific change number and see if it is locked by another user.
  If you find that it is locked, you can either wait for the other user to release the lock or, if appropriate, you can delete the lock entry (ensure you have the necessary authorizations to do this).
  
  
  
  Communicate with Users:
  
  If you identify that another user is working on the change number, communicate with them to understand their progress and when they expect to release the lock.
  
  
  
  Check for Background Jobs:
  
  Sometimes, background jobs may hold locks. Check transaction SM37 to see if there are any background jobs that might be using the change number.
  
  
  
  Transaction Rollback:
  
  If the lock is due to an incomplete transaction, you may need to roll back the transaction or resolve any issues that caused it to remain in a locked state.
  
  
  
  System Restart:
  
  In rare cases, a system restart may be necessary to clear any persistent locks, but this should be done with caution and typically requires coordination with your SAP Basis team.
  
  
  
  User Permissions:
  
  Ensure that the user has the necessary permissions to access and modify the change number. If not, consult with your SAP security team to adjust the permissions.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search for relevant notes in the SAP Support Portal.
  Documentation: Review the SAP documentation for Engineering Change Management to understand how change numbers are managed and the locking mechanism in place.
  Training: If this is a recurring issue, consider providing training for users on how to properly manage change numbers and avoid locking conflicts.
  
  By following these steps, you should be able to resolve the error and understand the underlying causes of the lock on the change number.