Message type: E = Error
Message class:  HRRSM00 - Process External HR Master Data 
Message number: 231
Message text: The employee cannot be re-hired: he/she is already active
The employee has the status 'active' in your enterprise, and therefore
cannot be rehired.
The data could not be processed.
Use the 'Reorganize' function to remove data that has already been
transferred.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message HRRSM00231 indicates that an attempt is being made to re-hire an employee who is already active in the system. This typically occurs in the context of personnel administration when trying to rehire an employee who has previously left the organization but has not been properly terminated in the system, or when the employee's status is still active.
Cause: Active Status: The employee you are trying to rehire is still marked as active in the system. Incomplete Termination: The employee may have been terminated, but the termination process was not completed correctly, leaving them in an active status. Multiple Records: There may be multiple records for the same employee, leading to confusion in their employment status.
Solution: Check Employee Status: Verify the current status of the employee in the system. You can do this by checking the employee's personnel file or using transaction codes like PA20 (Display HR Master Data) or PA30 (Maintain
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