How To Fix CNV_CMIS_A_20147 - Lock Attempt Failed

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_CMIS_A_20 - Message class for Cross-Client Customizing Comparison (SLO)

• Message number: 147

• Message text: Lock Attempt Failed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_CMIS_A_20147 - Lock Attempt Failed ?

  The SAP error message CNV_CMIS_A_20147: Lock Attempt Failed typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that the system is unable to acquire a lock on a specific object or resource that is required for the operation to proceed.
  Causes:
  
  Concurrent Access: Another process or user is currently accessing the same object, preventing the lock from being acquired.
  Long-Running Transactions: A transaction that is taking too long to complete may hold the lock longer than expected.
  Database Locking Issues: There may be issues at the database level that are causing locks to not be released properly.
  Configuration Issues: Incorrect configuration settings in the migration tool or the system may lead to locking problems.
  
  Solutions:
  
  Check for Active Sessions: Use transaction codes like SM12 to check for existing locks. Identify and resolve any sessions that are holding locks on the object in question.
  Wait and Retry: If the lock is held by a legitimate process, you may need to wait for that process to complete and then retry the operation.
  Review Long-Running Transactions: Identify any long-running transactions using transaction SM66 or SM50 and consider terminating them if they are not critical.
  System Restart: In some cases, a system restart may help clear any lingering locks, but this should be done with caution and typically as a last resort.
  Check Configuration: Review the configuration settings of the migration tool to ensure they are set up correctly.
  Consult Logs: Check the application logs and system logs for any additional error messages or warnings that may provide more context about the issue.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review the official SAP documentation for the migration tool you are using to ensure you are following the recommended procedures.
  Support: If the issue persists, consider reaching out to SAP Support for assistance, providing them with detailed information about the error and the context in which it occurred.
  
  By following these steps, you should be able to diagnose and resolve the CNV_CMIS_A_20147 error effectively.