How To Fix CTS_WBO_API021 - Object &1 is already locked in task &3 of user &4

SAP Error Message - Details

• Message type: E = Error

• Message class: CTS_WBO_API - WBO Remote API: Messages

• Message number: 021

• Message text: Object &1 is already locked in task &3 of user &4

What causes this issue?

The object &V1& cannot be edited under a request, since it is already
locked in the task &V3& of user &V4&.
The task &V3& is not yet assigned to a request.

System Response

The editing of the object &V1& is canceled.

How to fix this error?

Assign the task &V3& to a request or release it in a request. If
necessary, contact the owner &V4&. You can then edit the object under
this new request.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CTS_WBO_API021 - Object &1 is already locked in task &3 of user &4 ?

  The SAP error message CTS_WBO_API021 indicates that an object is already locked in a transport task by another user. This typically occurs in the Change and Transport System (CTS) when multiple users are trying to work on the same object simultaneously, leading to a conflict.
  Cause:
  
  Concurrent Access: Another user has locked the object in a transport request or task.
  Incomplete Release: The object may have been left in a locked state due to an incomplete transport or release process.
  System Error: Occasionally, system errors or inconsistencies can lead to objects being incorrectly marked as locked.
  
  Solution:
  
  
  Identify the Lock:
  
  Use transaction code SM12 to check for locks. You can filter by the object name and the user who has locked it.
  Look for the transport task number and the user mentioned in the error message.
  
  
  
  Contact the User:
  
  If another user is locking the object, communicate with them to see if they can release the lock or if they are done with their changes.
  
  
  
  Release the Lock:
  
  If the user is unavailable or the lock is no longer valid, you can manually delete the lock using transaction SM12. However, be cautious with this approach, as it may lead to data inconsistency if the user is still working on the object.
  
  
  
  Check Transport Request:
  
  Ensure that the transport request is properly released and that there are no pending changes that could be causing the lock.
  
  
  
  System Restart:
  
  In some cases, a system restart may help clear any lingering locks, but this should be done with caution and typically as a last resort.
  
  
  
  Related Information:
  
  Transport Management: Understanding how the Change and Transport System works in SAP can help prevent such issues. Familiarize yourself with transport requests, tasks, and how to manage them.
  Lock Management: Knowing how to manage locks in SAP (using SM12 and SM21 for logs) is crucial for troubleshooting similar issues.
  User Communication: Establishing a protocol for users to communicate when they are working on shared objects can help minimize conflicts.
  
  If the problem persists after trying the above solutions, it may be necessary to consult with your SAP Basis team or SAP support for further assistance.