How To Fix CNV_OT_PCL009 - System locking failure

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_OT_PCL - Messages for PCL of generic OBT parts

• Message number: 009

• Message text: System locking 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 CNV_OT_PCL009 - System locking failure ?

  The SAP error message CNV_OT_PCL009: System locking failure typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other tools that involve data transfer. This error indicates that the system is unable to acquire a lock on the necessary resources, which can lead to issues in processing the migration or conversion tasks.
  Causes:
  
  Concurrent Processes: Another process may be holding a lock on the same resources that your migration process is trying to access.
  Long-running Transactions: If there are long-running transactions in the system, they may prevent the migration process from acquiring the necessary locks.
  Database Locking Issues: Database-level locks may be causing the issue, especially if there are multiple users or processes trying to access the same data.
  Configuration Issues: Incorrect configuration settings in the migration tool or the system can lead to locking problems.
  
  Solutions:
  
  Check for Active Processes: Use transaction codes like SM12 (to check for locks) and SM66 (to view active processes) to identify any processes that may be holding locks. If you find any, you may need to terminate them if they are not critical.
  Wait and Retry: Sometimes, simply waiting for a few moments and then retrying the migration process can resolve the issue, especially if it was caused by a temporary lock.
  Review Long-running Transactions: Identify and resolve any long-running transactions that may be causing locks. You can use transaction SM50 to monitor the work processes.
  Adjust Lock Timeout Settings: If applicable, consider adjusting the lock timeout settings in your SAP system to allow for longer wait times before a lock is considered failed.
  Check Configuration: Review the configuration settings of the migration tool to ensure that everything is set up correctly.
  System Restart: In some cases, a system restart may help clear any lingering locks or issues.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific patches or updates related to the CNV_OT_PCL009 error. SAP frequently releases updates that may address known issues.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Documentation: Review the official SAP documentation for the migration tool you are using to ensure that you are following the recommended procedures.
  
  If the issue persists after trying the above solutions, it may be necessary to contact SAP support for further assistance.