How To Fix DMWB_MSG020 - Class locked

SAP Error Message - Details

• Message type: E = Error

• Message class: DMWB_MSG - Messages of Document Modeling Workbench

• Message number: 020

• Message text: Class locked

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 DMWB_MSG020 - Class locked ?

  The SAP error message DMWB_MSG020 indicates that a class is locked, which typically means that the class is currently being edited or is in use by another user or process. This can prevent you from making changes or performing certain actions related to that class.
  Cause:
  
  User Lock: Another user is currently editing the class in the ABAP Workbench (SE80 or SE24).
  Transport Lock: The class is part of a transport request that is currently being processed or is locked for transport.
  System Lock: The system may have a temporary lock due to a background job or other processes that are accessing the class.
  
  Solution:
  
  Check for Active Sessions: Use transaction SM12 to check for any active locks on the class. If you find a lock that is not needed, you can delete it (if you have the necessary authorizations).
  Wait for Release: If another user is editing the class, you may need to wait until they finish and release the lock.
  Transport Management: If the class is locked due to transport, check the transport logs and ensure that the transport is completed. You may need to coordinate with your transport administrator.
  Restart the Session: Sometimes, simply logging out and back into the SAP system can clear temporary locks.
  Contact Basis Team: If you are unable to resolve the issue, contact your SAP Basis team for assistance. They can help identify and resolve any underlying issues causing the lock.
  
  Related Information:
  
  Transaction Codes:
  
  SE80: Object Navigator
  SE24: Class Builder
  SM12: Display and Delete Locks
  SE01: Transport Organizer
  
  
  Lock Management: Understanding how locks work in SAP can help you manage and troubleshoot these issues more effectively.
  User Authorizations: Ensure that you have the necessary authorizations to view and manage locks.
  
  By following these steps, you should be able to identify the cause of the lock and take appropriate action to resolve the issue.