How To Fix /PF1/MSG_EH_BAPI_EH055 - A lock request failed

SAP Error Message - Details

• Message type: E = Error

• Message class: /PF1/MSG_EH_BAPI_EH -

• Message number: 055

• Message text: A lock request failed

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PF1/MSG_EH_BAPI_EH055 - A lock request failed ?

  The SAP error message /PF1/MSG_EH_BAPI_EH055 A lock request failed typically indicates that a lock request in the system could not be completed. This can happen for several reasons, and understanding the cause is crucial for finding a solution. Here’s a breakdown of potential causes, solutions, and related information:
  Causes:
  
  Concurrent Access: Another user or process is currently holding a lock on the same object (e.g., a database record) that your transaction is trying to access.
  Lock Table Overflow: The lock table may be full, preventing new locks from being created.
  Deadlocks: Two or more processes are waiting for each other to release locks, leading to a deadlock situation.
  System Configuration Issues: There may be configuration issues in the SAP system that affect how locks are managed.
  Long-running Transactions: If a transaction takes too long to complete, it may hold locks longer than necessary, causing other transactions to fail.
  
  Solutions:
  
  
  Identify Lock Holders:
  
  Use transaction code SM12 to view and manage locks. You can see which users or processes are holding locks on the object you are trying to access.
  If you find a lock that is no longer needed, you can delete it (if you have the necessary authorizations).
  
  
  
  Check for Deadlocks:
  
  Use transaction code SM21 to check the system log for any deadlock situations.
  If deadlocks are occurring, analyze the processes involved and consider optimizing the code or transaction logic to avoid them.
  
  
  
  Increase Lock Table Size:
  
  If the lock table is full, you may need to increase its size. This can be done by adjusting the profile parameters in the SAP system (e.g., enque/table_size).
  
  
  
  Optimize Long-running Transactions:
  
  Review the transactions that are taking a long time to complete and optimize them to reduce the time they hold locks.
  
  
  
  Retry the Operation:
  
  Sometimes, simply retrying the operation after a short wait can resolve the issue, especially if it was caused by a temporary lock.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error message or provide additional troubleshooting steps.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM12: Display and manage locks.
  SM21: System log for monitoring.
  SM37: Job monitoring to check for long-running jobs.
  
  
  
  SAP Documentation: Refer to the official SAP documentation for more details on lock management and troubleshooting.
  
  
  Performance Monitoring: Regularly monitor system performance and lock usage to prevent issues from arising in the future.
  
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP Basis team or consult with SAP support for further assistance.