How To Fix TK309 - Request lock for &1 is in invalid task/request &2

TK309 - Overview

• Message type: E = Error

• Message class: TK - Transport Organizer

• Message number: 309

• Message text: Request lock for &1 is in invalid task/request &2

What causes this issue?

The request lock for "&V1&" belongs to request/task "&V2&" which
is not a request/task in this system. Request locks from the
requests/tasks of other systems are not permitted.

System Response

The object &V1& is not locked.

How to fix this error?

Contact your system administrator to remove all request locks from
request/task &V2&. Once this has been done, repeat your function.

Error message extract from SAP system. Copyright SAP SE.

TK309 - Details

• The SAP error message TK309 indicates that there is an issue with a request lock for a transport request. This error typically occurs when there is an attempt to access or modify a transport request that is either locked or invalid. Here’s a breakdown of the cause, potential solutions, and related information:
  
  Cause:
  
  Invalid Request/Task: The transport request or task you are trying to access may not exist or may have been deleted.
  Locking Issues: The request might be locked by another user or process, preventing you from accessing it.
  Transport Directory Issues: There may be inconsistencies in the transport directory or the transport management system.
  Authorization Issues: The user may not have the necessary authorizations to access or modify the transport request.
  
  Solutions:
  
  
  Check Request/Task Validity:
  
  Verify that the transport request or task exists in the system. You can do this by using transaction code SE09 or SE10 to view the transport requests.
  Ensure that the request is