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

CMO004 - Overview

• 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