Message type: E = Error
Message class:  HRTIM00BLPEMPL - TMW: Employee-Related Errors in Business Logic Processor 
Message number: 013
Message text: Personnel number &1 is not locked. You cannot change the data
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The SAP error message HRTIM00BLPEMPL013 indicates that the personnel number specified is not locked, which means that the system is preventing changes to the employee's data. This can occur in various scenarios, such as when trying to modify employee records in the Human Resources (HR) module.
Cause: Personnel Number Not Locked: The primary reason for this error is that the personnel number you are trying to modify is not locked for changes. In SAP, locking is often used to prevent data inconsistencies during processing. Data Entry in Progress: Another user might be currently processing or entering data for the same personnel number, which can lead to this error. Authorization Issues: The user may not have the necessary authorizations to make changes to the employee data. System Configuration: There may be specific configurations or settings in the system that prevent changes to certain employee records.
Solution: Check Lock Status: Verify if the personnel number is indeed locked. You
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