How To Fix /UI2/MIGRATION302 - Catalog '&1' is locked by '&2'.

SAP Error Message - Details

• Message type: E = Error

• Message class: /UI2/MIGRATION -

• Message number: 302

• Message text: Catalog '&1' is locked by '&2'.

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 /UI2/MIGRATION302 - Catalog '&1' is locked by '&2'. ?

  The SAP error message /UI2/MIGRATION302 Catalog '&1' is locked by '&2' typically occurs in the context of the SAP Fiori Launchpad or when working with SAP UI2 catalogs. This error indicates that a specific catalog (identified by &1) is currently locked by another user or process (identified by &2), preventing you from making changes to it.
  Cause:
  
  Concurrent Access: Another user or process is currently editing or modifying the catalog, which locks it for other users to prevent data inconsistency.
  Long-running Transactions: A transaction that takes a long time to complete may hold the lock longer than expected.
  System Issues: Sometimes, system issues or bugs can lead to locks not being released properly.
  
  Solution:
  
  Wait and Retry: If the lock is temporary (e.g., another user is editing the catalog), wait for a few minutes and then try again.
  Identify the Locking User: Use transaction codes like SM12 (to view and manage locks) to identify the user or process that is holding the lock. You can then communicate with that user to determine if they can release the lock.
  Release the Lock: If you have the necessary authorizations, you can manually release the lock using transaction SM12. Be cautious with this approach, as it may lead to data inconsistency if the other user is actively working on the catalog.
  Check for Long-running Processes: Use transaction SM66 to check for long-running processes that might be holding the lock. If you find any, you may need to investigate further or terminate the process if appropriate.
  System Restart: In some cases, a system restart may be necessary to clear locks that are not being released properly. This should be done with caution and typically requires coordination with your Basis team.
  
  Related Information:
  
  Lock Management: Understanding how SAP handles locks can help in troubleshooting. Locks are used to ensure data integrity when multiple users are accessing the same data.
  User Communication: If you are in a collaborative environment, communicating with your team about who is working on which catalogs can help avoid these issues.
  SAP Notes: Check for any relevant SAP Notes or updates that might address known issues related to catalog locking.
  
  If the problem persists after trying the above solutions, consider reaching out to your SAP support team for further assistance.