How To Fix /SMB/CM_CNV_LCK001 - Live Conversion running indicator cannot be locked

SAP Error Message - Details

• Message type: E = Error

• Message class: /SMB/CM_CNV_LCK -

• Message number: 001

• Message text: Live Conversion running indicator cannot be locked

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SMB/CM_CNV_LCK001 - Live Conversion running indicator cannot be locked ?

  The SAP error message /SMB/CM_CNV_LCK001 Live Conversion running indicator cannot be locked typically occurs during a live conversion process in SAP, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that the system is unable to acquire a lock on the running indicator for the live conversion process, which is necessary to ensure that the conversion can proceed without interference from other processes.
  Causes:
  
  Concurrent Processes: Another process may already be using the live conversion running indicator, preventing your process from acquiring the necessary lock.
  Lock Table Issues: There may be issues with the lock table in the database, such as it being full or not functioning correctly.
  System Configuration: Incorrect configuration settings in the SAP system could lead to locking issues.
  User Authorizations: The user executing the conversion may not have the necessary authorizations to lock the running indicator.
  
  Solutions:
  
  
  Check for Concurrent Processes: 
  
  Use transaction codes like SM12 to check for existing locks. If you find that another process is holding the lock, you may need to wait for it to complete or terminate it if it is safe to do so.
  
  
  
  Review System Logs: 
  
  Check the system logs (transaction SM21) for any related errors or warnings that might provide more context about the locking issue.
  
  
  
  Restart the Process: 
  
  Sometimes, simply restarting the live conversion process can resolve transient locking issues.
  
  
  
  Check User Authorizations: 
  
  Ensure that the user executing the conversion has the necessary authorizations to perform the operation. You may need to consult with your SAP security team.
  
  
  
  Database Lock Table: 
  
  If the lock table is full, you may need to increase its size or clear unnecessary locks. This typically requires database administration privileges.
  
  
  
  System Configuration: 
  
  Review the configuration settings related to the live conversion process to ensure they are set up correctly.
  
  
  
  Contact SAP Support: 
  
  If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. They may provide patches or specific guidance based on your system's configuration.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SM12 (to view locks), SM21 (to view system logs), and ST22 (to check for dumps).
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review the official SAP documentation for the migration tools you are using, as they may have specific recommendations for handling locking issues.
  
  By following these steps, you should be able to diagnose and resolve the locking issue related to the live conversion process in SAP.