How To Fix /PLMB/BA_CCK016 - Lock failure

SAP Error Message - Details

• Message type: E = Error

• Message class: /PLMB/BA_CCK -

• Message number: 016

• Message text: Lock failure

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 /PLMB/BA_CCK016 - Lock failure ?

  The SAP error message /PLMB/BA_CCK016 Lock failure typically indicates that there is a problem with locking mechanisms in the SAP system, particularly related to the Business Application Programming Interface (BAPI) or Business Workflow. This error can occur when multiple users or processes attempt to access or modify the same data simultaneously, leading to a conflict.
  Causes:
  
  Concurrent Access: Multiple users or processes are trying to access or modify the same object or data at the same time.
  Long-running Transactions: A transaction that takes too long to complete may hold locks longer than expected, causing other transactions to fail.
  Deadlocks: Situations where two or more transactions are waiting for each other to release locks, leading to a deadlock.
  System Configuration: Incorrect configuration of lock parameters or settings in the SAP system.
  
  Solutions:
  
  Retry the Operation: Often, simply retrying the operation after a short wait can resolve the issue if it was caused by temporary contention.
  Check for Long-running Transactions: Use transaction codes like SM12 (to view lock entries) and SM21 (to check system logs) to identify any long-running transactions that may be holding locks.
  Analyze Lock Entries: In transaction SM12, check for any existing lock entries related to the object you are trying to access. If you find stale locks, you may need to delete them (with caution).
  Increase Lock Timeout: If the issue is frequent, consider increasing the lock timeout settings in the system configuration.
  Review Custom Code: If the error occurs in custom development, review the code for proper handling of locks and ensure that locks are released promptly after use.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide patches.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: To view and manage lock entries.
  SM21: To view system logs for errors and warnings.
  SM37: To monitor background jobs and check for any that may be causing locks.
  
  
  SAP Documentation: Refer to SAP Help documentation for detailed information on locking mechanisms and best practices.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  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.