How To Fix CPPEMIG021 - Migration is locked by user &

SAP Error Message - Details

• Message type: E = Error

• Message class: CPPEMIG - Migration of BOM and Routing to iPPE

• Message number: 021

• Message text: Migration is locked by user &

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CPPEMIG021 - Migration is locked by user & ?

  The SAP error message CPPEMIG021 indicates that a migration process is locked by a specific user. This typically occurs during the migration of data or configuration settings in SAP systems, particularly when using tools like the SAP S/4HANA Migration Cockpit or other migration-related transactions.
  Cause:
  
  User Lock: The migration process is currently being executed or was previously executed by a user who has not released the lock. This can happen if the user did not complete the migration process or if the session was terminated unexpectedly.
  Concurrent Sessions: Another user might be trying to perform the same migration task simultaneously, leading to a lock.
  System Error: Sometimes, system errors or crashes can leave a migration process in a locked state.
  
  Solution:
  
  Identify the Locking User: Use transaction code SM12 to check for locks in the system. You can filter by the user ID mentioned in the error message to see which session is holding the lock.
  Release the Lock: If you have the necessary authorizations, you can manually delete the lock entry in SM12. Be cautious when doing this, as it may affect ongoing processes.
  Check for Active Sessions: Use transaction code SM66 to see if there are any active sessions related to the migration process. If you find any, you may need to coordinate with the user to complete or terminate their session.
  Restart the Migration Process: After releasing the lock, you can attempt to restart the migration process.
  Consult Logs: Check the migration logs for any additional information that might indicate why the lock occurred or if there are other underlying issues.
  
  Related Information:
  
  User Authorizations: Ensure that the user attempting the migration has the necessary authorizations to perform the task.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  System Performance: If locks are a frequent issue, consider reviewing system performance and user activity to identify potential bottlenecks or conflicts.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP Basis team or reach out to SAP support for further assistance.