How To Fix /PF1/MSG_SLA063 - Lock request failed; exception &1

SAP Error Message - Details

• Message type: E = Error

• Message class: /PF1/MSG_SLA -

• Message number: 063

• Message text: Lock request failed; exception &1

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_SLA063 - Lock request failed; exception &1 ?

  The SAP error message /PF1/MSG_SLA063 Lock request failed; exception &1 typically indicates that there is an issue with a lock request in the SAP system. This error 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:
  
  Lock Conflicts: The most common cause is that another transaction or user is holding a lock on the resource you are trying to access. This can happen if a long-running transaction is not releasing its locks.
  Deadlocks: A deadlock situation may arise when two or more transactions are waiting for each other to release locks, causing a standstill.
  Database Issues: There may be underlying database issues, such as corruption or misconfiguration, that prevent locks from being acquired or released properly.
  System Performance: High system load or performance issues can lead to delays in lock acquisition and release, resulting in timeouts and lock request failures.
  
  Solutions:
  
  Identify Lock Holders: Use transaction codes like SM12 (for lock entries) to identify which user or process is holding the lock. You can then decide whether to wait for the lock to be released or terminate the session holding the lock.
  Check for Deadlocks: Use transaction SM21 (system log) or ST22 (dump analysis) to check for any deadlocks or short dumps that may provide more context on the issue.
  Increase Timeout Settings: If the issue is related to timeouts, consider increasing the lock timeout settings in the system configuration.
  Optimize Long-Running Transactions: Review and optimize any long-running transactions that may be holding locks for extended periods. This may involve improving performance or breaking down large transactions into smaller ones.
  Database Maintenance: Perform regular database maintenance to ensure that the database is healthy and that there are no underlying issues affecting lock management.
  System Monitoring: Implement monitoring tools to keep track of lock usage and system performance to proactively address potential issues before they escalate.
  
  Related Information:
  
  
  Transaction Codes:
  
  SM12: Display and manage lock entries.
  SM21: View system logs for errors and warnings.
  ST22: Analyze short dumps for detailed error information.
  SM37: Monitor background jobs that may be causing locks.
  
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to lock management and the specific error message. You can search the SAP Support Portal for relevant notes.
  
  
  Documentation: Review SAP documentation on lock management and troubleshooting to gain a deeper understanding of how locks work in the SAP environment.
  
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP Basis team or SAP support for further investigation.