How To Fix CMO004 - Operation &3: Work center &1 plant &2 is locked

SAP Error Message - Details

• Message type: E = Error

• Message class: CMO - Messages for PM/SM Orders

• Message number: 004

• Message text: Operation &3: Work center &1 plant &2 is locked

What causes this issue?

In operation &V3&, you entered work center &V1&, plant &V2&, but this
work center is locked.

System Response

Operation &V3& is not copied.

How to fix this error?

Check the lock indicator of the work center or use another work center
in the task list operation.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CMO004 - Operation &3: Work center &1 plant &2 is locked ?

  The SAP error message CMO004 indicates that a specific work center in a particular plant is locked, which prevents operations from being performed on that work center. This can occur for various reasons, such as maintenance activities, configuration changes, or user locks.
  Cause:
  
  User Lock: A user may have locked the work center for maintenance or configuration changes.
  System Lock: The system may have locked the work center due to ongoing processes or transactions that are currently being executed.
  Configuration Changes: Changes to the work center settings or parameters may have triggered a lock.
  Transport Requests: If a transport request is being processed that includes changes to the work center, it may be locked during that time.
  
  Solution:
  
  
  Check Lock Status:
  
  Use transaction code SM12 to check for any user locks on the work center. If you find a lock that is no longer needed, you can delete it (ensure you have the necessary authorizations).
  
  
  
  Check for Ongoing Processes:
  
  Ensure that there are no ongoing transactions or processes that might be using the work center. You can check transaction codes like CO03 (Display Production Order) or CO02 (Change Production Order) to see if there are any active orders.
  
  
  
  Review Configuration Changes:
  
  If there were recent changes made to the work center, review those changes to ensure they were completed successfully and did not leave the work center in a locked state.
  
  
  
  Transport Requests:
  
  If the work center is locked due to a transport request, you may need to wait until the transport is completed or check with your Basis team to see if they can assist in unlocking it.
  
  
  
  Contact SAP Support:
  
  If you are unable to resolve the issue, consider reaching out to your SAP support team or SAP directly for further assistance.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM12: To view and manage user locks.
  CO01: Create Production Order.
  CO02: Change Production Order.
  CO03: Display Production Order.
  
  
  
  Work Center Configuration:
  
  Work centers can be configured in transaction CR01 (Create Work Center), CR02 (Change Work Center), and CR03 (Display Work Center).
  
  
  
  Authorization: Ensure that you have the necessary authorizations to view and manage locks and work center configurations.
  
  
  By following these steps, you should be able to identify the cause of the lock and take appropriate action to resolve the CMO004 error.