How To Fix WN475 - Referenced supplier in customer master will be overwritten

SAP Error Message - Details

• Message type: E = Error

• Message class: WN - Plant master data maintenance (integrated)

• Message number: 475

• Message text: Referenced supplier in customer master will be overwritten

What causes this issue?

You are creating a plant and need to assign an existing business
partner.
The customer of the business partner you want to assign has a reference
to a supplier maintained in the customer master data. The referenced
supplier is different to the supplier of the plant that you want to
create now.

System Response

The assignment of the business partner to the new plant overwrites the
current reference.

How to fix this error?

Check whether the existing business partner should be assigned to the
new plant.

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 WN475 - Referenced supplier in customer master will be overwritten ?

  The SAP error message WN475 ("Referenced supplier in customer master will be overwritten") typically occurs when there is a conflict between the supplier information in the customer master data. This can happen when you are trying to create or update a customer master record that references a supplier, and the system detects that the supplier information is inconsistent or will be overwritten.
  Cause:
  
  Inconsistent Data: The supplier information in the customer master record may not match the existing supplier data in the system.
  Data Overwrite: The system is trying to update a customer record that already has a supplier reference, and the new data being entered conflicts with the existing supplier data.
  Configuration Issues: There may be configuration settings in the system that are causing the supplier information to be treated incorrectly.
  
  Solution:
  
  Review Customer Master Data: Check the customer master record for any inconsistencies in the supplier information. Ensure that the supplier data is correct and matches the intended supplier.
  Update Supplier Information: If the supplier information needs to be updated, make sure to do so in a way that does not conflict with existing records. You may need to consult with your data management team to ensure that the changes are valid.
  Check for Duplicates: Ensure that there are no duplicate entries for the supplier in the system that could be causing the conflict.
  Consult Documentation: Review SAP documentation or help resources for specific guidance on handling customer and supplier master data.
  Use Transaction Codes: Use transaction codes like XD02 (Change Customer) or XD03 (Display Customer) to review and modify the customer master data as needed.
  Contact Support: If the issue persists, consider reaching out to your SAP support team or consulting with SAP experts for further assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes for managing customer and supplier data, such as XD01 (Create Customer), XD02 (Change Customer), and XD03 (Display Customer).
  Master Data Management: Understanding the principles of master data management in SAP can help prevent such issues in the future.
  SAP Notes: Check for any SAP Notes related to this error message for additional insights or patches that may resolve the issue.
  User Roles and Authorizations: Ensure that the user making the changes has the appropriate authorizations to modify customer and supplier data.
  
  By following these steps, you should be able to resolve the WN475 error and ensure that your customer and supplier master data is consistent and accurate.