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

PX079 - Overview

• 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