How To Fix WVMI202 - Supplier material &2 from supplier &1 not unique

WVMI202 - Overview

• Message type: E = Error

• Message class: WVMI - Messages about enhancements for VMI

• Message number: 202

• Message text: Supplier material &2 from supplier &1 not unique

What causes this issue?

Only the material number for the vendor was entered for a material in
the IDoc. This material number is contained in several purchasing info
records and cannot therefore be used to determine a material.

System Response

IDoc inbound processing has been terminated.

How to fix this error?

Change the relevant purchasing info records so that the vendor material
number is uniquely assigned to exactly one material number, or ask the
vendor to use your material numbers.

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.

WVMI202 - Details

• The SAP error message WVMI202 indicates that there is a problem with the uniqueness of a supplier material number in the system. Specifically, it means that the combination of the supplier and the material number is not unique, which can lead to issues in procurement and inventory management processes.
  
  Cause:
  
  Duplicate Entries: The most common cause of this error is that there are multiple entries for the same supplier and material combination in the system. This can happen due to data entry errors or incorrect data migration.
  Incorrect Master Data: The material master or vendor master data may not be set up correctly, leading to conflicts in the identification of supplier materials.
  
  Configuration Issues: There may be issues with the configuration of the material management module that affect how supplier materials are handled.
  
  
  Solution:
  
  
  Check for Duplicates: 
  
  Use transaction codes like MM03 (Display Material) or ME13 (Display Purchasing Info Record) to check if there are duplicate