How To Fix CNV_CMIS_A_20016 - Worklist header is locked for client &1 package id &2 version &3

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 016

• Message text: Worklist header is locked for client &1 package id &2 version &3

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_CMIS_A_20016 - Worklist header is locked for client &1 package id &2 version &3 ?

  The SAP error message CNV_CMIS_A_20016 indicates that the worklist header is locked for a specific client, package ID, and version. This typically occurs in the context of data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools.
  Cause:
  
  Concurrent Access: The worklist header may be locked because another user or process is currently accessing or modifying it. This can happen if multiple users are trying to work on the same migration project simultaneously.
  Incomplete Previous Process: If a previous migration or conversion process did not complete successfully, it might leave the worklist in a locked state.
  System Locking Mechanism: SAP uses locking mechanisms to prevent data inconsistencies. If a transaction is not properly released, it can lead to a lock.
  
  Solution:
  
  Check for Active Sessions: Use transaction code SM12 to check for any active locks on the worklist header. If you find any locks that are no longer needed, you can delete them (ensure that you have the necessary authorizations and that it is safe to do so).
  Wait for Release: If another user is legitimately using the worklist, you may need to wait until they finish their work and the lock is released.
  Restart the Process: If the lock is due to an incomplete process, you may need to restart the migration or conversion process after ensuring that all previous sessions are properly closed.
  Check Logs: Review the logs for any errors or warnings that might indicate why the lock occurred. This can provide insights into whether there are underlying issues that need to be addressed.
  Contact SAP Support: If the issue persists and you cannot resolve it, consider reaching out to SAP support for assistance. They may provide specific guidance based on your system configuration and the context of the error.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM12 (to view and manage locks), SM21 (to check system logs), and ST22 (to check for dumps).
  Documentation: Review SAP documentation related to the Migration Cockpit or the specific data migration tool you are using for any additional troubleshooting steps or best practices.
  User Authorizations: Ensure that you have the necessary authorizations to manage locks and perform migration tasks.
  
  By following these steps, you should be able to identify the cause of the lock and take appropriate action to resolve the error CNV_CMIS_A_20016.