Message type: E = Error
Message class:  HRRSM00 - Process External HR Master Data 
Message number: 251
Message text: Only the head office of an employee can edit his/her data
Only the personnel department of an employee can change employee data.
This data has been sent by a branch other than the head office of the
employee concerned.
The data could not be processed.
Use the 'Reorganize' function to remove data that has already been
transferred.
Change the data from the head office of the employee.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message HRRSM00251, which states "Only the head office of an employee can edit his/her data," typically occurs in the context of Human Resources (HR) management within SAP systems. This error indicates that the user attempting to edit an employee's data does not have the necessary permissions or is not in the correct organizational unit to make those changes.
Cause: Organizational Structure: The employee's data is managed by a specific head office or organizational unit, and only users associated with that unit have the authority to edit the employee's information. Authorization Issues: The user attempting to make the changes may not have the required authorizations or roles assigned to them in the SAP system. Data Locking: The employee's data might be locked for editing by another process or user, although this is less common for this specific error.
Solution: Check User Authorization: Ensure that the user has the appropriate roles and authorizations to edit employee
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