Message type: E = Error
Message class:  HRTIM00BLPINT - TMW: Technical Errors in Business Logic Processor 
Message number: 015
Message text: Error in program; personnel number &1 is already unlocked
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The SAP error message HRTIM00BLPINT015 indicates that there is an issue related to personnel number processing, specifically that the personnel number in question is already unlocked. This error typically occurs in the context of time management or personnel administration when trying to perform an operation on a personnel number that is already in an unlocked state.
Cause: Duplicate Unlocking Attempt: The most common cause of this error is that there is an attempt to unlock a personnel number that is already unlocked. This can happen if the unlocking process is triggered multiple times for the same personnel number. System
Configuration Issues: There may be issues with the configuration of the time management module or the way personnel numbers are being handled in the system. Concurrency Issues: If multiple users or processes are trying to unlock the same personnel number simultaneously, it may lead to this error.
Solution: Check Personnel Number Status: Verify the status of the
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