Message type: E = Error
Message class:  9J1UFDI - Messages for Ukraine E-Invoices 
Message number: 201
Message text: XML file &1 locked by user &2
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The SAP error message 9J1UFDI201 indicates that an XML file is locked by a specific user. This typically occurs in scenarios where multiple users or processes are trying to access or modify the same XML file simultaneously, leading to a conflict.
Cause: File Locking: The XML file is currently being accessed or modified by another user or process, which prevents other users from accessing it. Session Issues: A previous session may not have released the lock on the file properly, causing it to remain locked. Concurrency: Multiple users or processes trying to access the same file at the same time can lead to this error.
Solution: Identify the User: Check which user is currently locking the file. The error message provides the user ID (&2) that has the lock. Contact the User: If possible, contact the user who has the file locked and ask them to release the lock by completing their task or logging out. Wait and
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