How To Fix RP435 - Generation rule &1 is not supported for the external person ID

RP435 - Overview

• Message type: E = Error

• Message class: RP - Error Messages for Infotype Module Pools

• Message number: 435

• Message text: Generation rule &1 is not supported for the external person ID

What causes this issue?

When you hire a new employee, the system automatically creates the
external person ID and stores it in <ZK>infotype 0709</>. When you
enter an additional personnel assignment, the external person ID is
transferred by the copy mechanism for infotypes.
The generation rule you use to create the external person ID is defined
in Customizing.
Generation rule &V1& is not supported.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Check the Customizing step <ZK>Activate External Person ID</>.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RP435 - Generation rule &1 is not supported for the external person ID ?

  The SAP error message "RP435 Generation rule &1 is not supported for the external person ID" typically occurs in the context of HR (Human Resources) processes, particularly when dealing with personnel administration or employee master data. This error indicates that the system is trying to apply a generation rule that is not applicable to the specified external person ID.
  
  Cause:
  
  Invalid Generation Rule: The generation rule specified (denoted by &1 in the error message) is not configured to handle the external person ID being processed. This could be due to the rule being designed for internal personnel numbers only.
  
  Configuration Issues: There may be a misconfiguration in the HR settings or in the generation rules for external IDs.
  Data Integrity Issues: The external person ID may not be correctly set up in the system, or there may be missing or incorrect data associated with it.
  
  
  Solution:
  
  
  Check Generation Rules: Review the generation rules configured in the