How To Fix CNV_DMC_MC_EXCEPTION127 - Cannot delete migration object. The migration object is locked by user &1

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_MC_EXCEPTION - Exception texts of Migration Object Modeller

• Message number: 127

• Message text: Cannot delete migration object. The migration object is locked by user &1

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_DMC_MC_EXCEPTION127 - Cannot delete migration object. The migration object is locked by user &1 ?

  The SAP error message CNV_DMC_MC_EXCEPTION127 indicates that a migration object cannot be deleted because it is currently locked by a user. This typically occurs in the context of data migration processes, particularly when using the SAP Data Migration Cockpit (DMC) or similar tools.
  Cause:
  The error is caused by the following scenarios:
  
  User Lock: The migration object is locked by another user who is currently working on it or has not released the lock properly.
  Session Timeout: A user may have left a session open, which keeps the migration object locked.
  System Error: There may be a system error or inconsistency that is causing the lock to persist.
  
  Solution:
  To resolve this issue, you can take the following steps:
  
  
  Identify the Locking User:
  
  Check the user who is locking the migration object. The error message typically provides the user ID (represented as &1).
  You can use transaction SM12 (Lock Entries) to view the locks in the system. Look for the relevant migration object and the user who is locking it.
  
  
  
  Release the Lock:
  
  If the locking user is identified and is available, ask them to release the lock by either completing their work or logging out.
  If the user is not available or the session is stale, you can manually delete the lock entry in transaction SM12. Be cautious when doing this, as it may disrupt the work of the user who holds the lock.
  
  
  
  Check for Background Jobs:
  
  Sometimes, background jobs may hold locks on migration objects. Check transaction SM37 to see if there are any running jobs that might be causing the lock.
  
  
  
  Retry the Operation:
  
  After releasing the lock, try to delete the migration object again.
  
  
  
  Consult SAP Notes:
  
  If the issue persists, check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  
  
  
  Contact SAP Support:
  
  If you are unable to resolve the issue, consider reaching out to SAP Support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  SM12: To view and manage lock entries.
  SM37: To monitor background jobs.
  
  
  SAP Data Migration Cockpit: Familiarize yourself with the functionalities and limitations of the DMC, as it may provide insights into how locks are managed during migration processes.
  User Management: Ensure that users are trained on proper session management to avoid leaving locks on migration objects.
  
  By following these steps, you should be able to resolve the CNV_DMC_MC_EXCEPTION127 error and successfully delete the migration object.