How To Fix PX079 - Personnel number &2 is already assigned in client &1

SAP Error Message - Details

• Message type: E = Error

• Message class: PX - HR-PA: Error messages for XPRAs

• Message number: 079

• Message text: Personnel number &2 is already assigned in client &1

What causes this issue?

In client &V1&, user &V4& is already assigned to the personnel number
&V2& in the <LS>Communication</> infotype (0105) at the time of the
conversion. As only one user can be assigned to a personnel number, the
system can not assign to user &V3& in accordance with the view
<LS>Assignment: User - Personnel Number </> (T513A).

System Response

The relevant table entry is not converted.

How to fix this error?

If necessary, correct the assignment in the <LS>Communication</>
infotype (0105).

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message PX079 - Personnel number &2 is already assigned in client &1 ?

  The SAP error message PX079 indicates that a personnel number is already assigned to a client in the system. This typically occurs when there is an attempt to create or assign a personnel number that already exists in the specified client. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Duplicate Personnel Number: The personnel number you are trying to assign is already in use for another employee in the same client.
  Data Migration Issues: If data has been migrated from another system or if there have been changes in personnel records, it may lead to conflicts with existing personnel numbers.
  Incorrect Configuration: There may be issues with the configuration of the personnel number ranges or settings in the system.
  
  Solution:
  
  
  Check Existing Personnel Numbers: 
  
  Use transaction codes like PA20 (Display HR Master Data) or PA30 (Maintain HR Master Data) to check if the personnel number already exists in the system.
  If it does exist, verify if it is assigned to the correct employee.
  
  
  
  Use a Different Personnel Number: 
  
  If the personnel number is indeed in use, you will need to assign a different, unique personnel number to the new employee or record.
  
  
  
  Review Data Migration: 
  
  If this error occurred after a data migration, review the migration process to ensure that personnel numbers were not duplicated or incorrectly assigned.
  
  
  
  Check Number Ranges: 
  
  Ensure that the number ranges for personnel numbers are correctly configured in the system. You can check this in the configuration settings under Personnel Management.
  
  
  
  Consult with HR or IT: 
  
  If you are unsure about how to proceed, consult with your HR department or IT support team for assistance in resolving the issue.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as PA20, PA30, and PA40 (for personnel actions).
  SAP Notes: Check SAP Notes for any known issues or patches related to personnel number assignments.
  Documentation: Review SAP documentation for guidelines on managing personnel numbers and handling errors related to HR master data.
  
  By following these steps, you should be able to resolve the PX079 error and ensure that personnel numbers are correctly assigned in your SAP system.