Message type: E = Error
Message class:  E_ACTION - E-Actions 
Message number: 109
Message text: The status &1 of the request will not allow to lock the request.
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The SAP error message E_ACTION109 indicates that the status of a transport request does not allow it to be locked. This typically occurs when you are trying to perform an action on a transport request that is not in a suitable state for that action. Here’s a breakdown of the cause, potential solutions, and related information:
Cause: Transport Request Status: The transport request may be in a status that does not permit locking. Common statuses that can lead to this error include: Released: The request has already been released and cannot be locked again. Modifiable: The request is modifiable but may be locked by another user or process. Imported: The request has already been imported into the target system. User Permissions: The user attempting to lock the request may not have the necessary permissions to perform the action. System Locking Mechanism: SAP uses a locking mechanism to prevent multiple users from modifying the same transport request simultaneously.
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