How To Fix /PF1/MSG_FH_E399 - Lock request has failed

SAP Error Message - Details

• Message type: E = Error

• Message class: /PF1/MSG_FH_E -

• Message number: 399

• Message text: Lock request has 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_FH_E399 - Lock request has failed ?

  The SAP error message /PF1/MSG_FH_E399 Lock request has failed typically indicates that there is an issue with a lock request in the SAP system. This can occur in various scenarios, often related to database operations or when multiple users or processes are trying to access the same resource simultaneously.
  Causes:
  
  Database Lock Conflicts: Another transaction or user may have locked the resource you are trying to access, leading to a conflict.
  Long-Running Transactions: If a transaction takes too long to complete, it may hold locks longer than expected, causing other transactions to fail.
  Deadlocks: Two or more transactions may be waiting for each other to release locks, resulting in a deadlock situation.
  System Configuration Issues: Incorrect configuration of the SAP system or database settings can lead to locking issues.
  Network Issues: Temporary network issues can cause lock requests to fail.
  
  Solutions:
  
  Identify the Lock: Use transaction codes like SM12 (to view and manage locks) to identify which user or process is holding the lock.
  Release the Lock: If you have the necessary permissions, you can manually release the lock from SM12. Be cautious when doing this, as it may affect other users.
  Check for Long-Running Transactions: Use transaction SM66 to monitor active processes and identify any long-running transactions that may be causing locks.
  Review Application Logic: If the error occurs frequently, review the application logic to ensure that locks are being managed properly and that transactions are not holding locks longer than necessary.
  Increase Lock Timeout: If appropriate, consider increasing the lock timeout settings in the SAP system to allow for longer wait times before a lock request fails.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide patches or updates.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: Display and manage locks.
  SM21: Check system logs for any related errors.
  SM66: Monitor global work processes.
  
  
  SAP Notes: Search for specific SAP Notes related to lock management and error handling in the SAP Support Portal.
  Documentation: Review SAP documentation on lock management and troubleshooting to understand best practices.
  
  If the issue persists after trying the above solutions, it may be necessary to involve your SAP Basis team or SAP support for further investigation.