How To Fix /PRA/PN138 - Lock delete attempted for lock held by &1 since &2 &3

SAP Error Message - Details

• Message type: E = Error

• Message class: /PRA/PN -

• Message number: 138

• Message text: Lock delete attempted for lock held by &1 since &2 &3

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PRA/PN138 - Lock delete attempted for lock held by &1 since &2 &3 ?

  The SAP error message /PRA/PN138 Lock delete attempted for lock held by &1 since &2 &3 indicates that there is an attempt to delete a lock that is currently held by another user or process. This typically occurs in scenarios where multiple users or processes are trying to access or modify the same data simultaneously, leading to a conflict.
  Cause:
  
  Locking Mechanism: SAP uses a locking mechanism to prevent data inconsistencies. When a user or process locks a record, other users or processes are prevented from modifying it until the lock is released.
  Long-Running Transactions: If a transaction takes too long to complete, it may hold onto a lock longer than expected, causing other transactions to fail when they attempt to delete or modify the locked data.
  Deadlocks: In some cases, a deadlock situation may arise where two or more processes are waiting for each other to release locks, leading to this error.
  User Session Issues: Sometimes, a user session may not be properly terminated, leaving locks in place.
  
  Solution:
  
  Identify the Lock Holder: Use transaction code SM12 to view the locks currently held in the system. You can filter by the user ID or the object type to find the specific lock.
  Release the Lock: If you have the necessary authorizations, you can manually delete the lock held by the user or process. However, be cautious when doing this, as it may lead to data inconsistencies if the process is still active.
  Check for Long-Running Transactions: Investigate any long-running transactions that may be holding locks. You can use transaction SM66 to monitor active processes and identify any that are taking too long.
  Review Application Logic: If this error occurs frequently, review the application logic to ensure that locks are being managed properly and that transactions are being completed in a timely manner.
  Increase Lock Timeout: If appropriate, consider increasing the lock timeout settings in the system to allow longer wait times for locks to be released.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: Display and manage locks.
  SM66: Global work process overview.
  SM21: System log for monitoring system messages.
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to locking mechanisms or specific transactions that may be causing the error.
  Documentation: Review SAP documentation on locking mechanisms and best practices for managing locks in your specific SAP environment.
  
  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.