How To Fix WRF_REF012 - &4 Existing assignment cannot be overwritten

WRF_REF012 - Overview

• Message type: E = Error

• Message class: WRF_REF - Messages from References for Materials Without History

• Message number: 012

• Message text: &4 Existing assignment cannot be overwritten

What causes this issue?

The system cannot overwrite the reference assignment for the combination
of material &V1& and plant &V2&according to the general settings for
multiple references.

System Response

The system cannot process this combination during the automatic
assignment of references.

How to fix this error?

If you want to change the existing reference assignment, use the dialog
program <LS>References for Materials without History</>.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WRF_REF012 - &4 Existing assignment cannot be overwritten ?

  The SAP error message WRF_REF012 with the description "Existing assignment cannot be overwritten" typically occurs in the context of the SAP Retail module, particularly when dealing with master data assignments, such as those related to articles, vendors, or other entities.
  
  Cause:
  This error usually arises when you attempt to create or modify an assignment (like a vendor to an article or a store to an article) that already exists in the system. The system prevents overwriting existing assignments to maintain data integrity and avoid conflicts.
  
  Solution:
  To resolve the WRF_REF012 error, you can follow these steps:
  
  
  Check Existing Assignments:
  
  Navigate to the relevant transaction (e.g., for article/vendor assignments) and check if the assignment you are trying to create already exists.
  Use transaction codes like MM02 (Change Material) or MM03 (Display Material) to view existing assignments.
  
  
  
  Modify Instead of Overwrite:
  
  If the assignment already exists and you need to change it, use the appropriate transaction to modify the existing assignment