How To Fix CNV_OR_REP004 - System failure during locking execution GUID &1

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_OR_REP -

• Message number: 004

• Message text: System failure during locking execution GUID &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_OR_REP004 - System failure during locking execution GUID &1 ?

  The SAP error message CNV_OR_REP004 indicates a system failure during the locking execution process, and it typically occurs in the context of data migration or conversion processes, particularly when using the SAP Landscape Transformation (SLT) or other data migration tools.
  Cause:
  
  
  Locking Mechanism Failure: The error usually arises when the system fails to acquire a lock on a specific object or resource. This can happen due to:
  
  Conflicts with other processes trying to access the same resource.
  Database issues or deadlocks.
  Insufficient system resources (e.g., memory, CPU).
  Network issues affecting communication with the database.
  
  
  
  Configuration Issues: Incorrect configuration settings in the migration tool or the underlying database can also lead to this error.
  
  
  Database Constraints: If there are constraints or triggers in the database that prevent the locking mechanism from functioning correctly, this can lead to failures.
  
  
  Solution:
  
  
  Check System Logs: Review the system logs (transaction SM21) and the application logs (transaction SLG1) for more detailed error messages that can provide insights into the root cause.
  
  
  Monitor Lock Entries: Use transaction SM12 to check for existing lock entries. If there are stale locks, you may need to delete them, but be cautious and ensure that no active processes are using those locks.
  
  
  Database Performance: Check the performance of the database. Ensure that it is not overloaded and that there are no deadlocks. You may need to analyze the database performance metrics.
  
  
  Configuration Review: Review the configuration settings of the data migration tool and ensure that they are set up correctly. This includes checking the connection settings, user permissions, and any relevant parameters.
  
  
  Restart the Process: Sometimes, simply restarting the migration process can resolve transient issues.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates that resolve known issues.
  
  
  Contact SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. Provide them with the error details, logs, and any steps you have already taken.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM21 (System Log), SLG1 (Application Log), and SM12 (Lock Entries).
  Documentation: Review the official SAP documentation for the specific data migration tool you are using, as it may contain troubleshooting steps and best practices.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to diagnose and resolve the CNV_OR_REP004 error effectively.