How To Fix WN480 - You cannot change the supplier of a retail site customer

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 480

• Message text: You cannot change the supplier of a retail site customer

What causes this issue?

You have tried to change the value of the <LS>Supplier</> field in the
customer master data of a business partner that is assigned to a retail
site.

System Response

If a business partner is assigned to a retail site, it is not possible
to change any assignments to a customer, a plant, or a supplier.

How to fix this error?

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

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 WN480 - You cannot change the supplier of a retail site customer ?

  The SAP error message WN480, which states "You cannot change the supplier of a retail site customer," typically occurs in the context of managing customer data in a retail environment. This error indicates that there is an attempt to change the supplier associated with a retail site customer, which is not allowed due to system constraints or business rules.
  Cause:
  
  Data Integrity Rules: SAP enforces certain data integrity rules to maintain consistency in the system. Changing the supplier for a retail site customer may violate these rules.
  Existing Transactions: If there are existing transactions, orders, or contracts associated with the current supplier, the system may prevent changes to avoid inconsistencies.
  Configuration Settings: The system configuration may restrict changes to supplier information for retail site customers to ensure compliance with business processes.
  
  Solution:
  
  Review Existing Transactions: Check if there are any open transactions or contracts linked to the current supplier. If so, you may need to close or modify these transactions before changing the supplier.
  Consult Configuration Settings: Review the configuration settings in the SAP system related to customer and supplier management. You may need to consult with your SAP administrator or functional consultant to understand the restrictions in place.
  Create a New Customer Record: If changing the supplier is essential and cannot be done due to system restrictions, consider creating a new customer record with the desired supplier information. This approach may involve transferring any relevant data from the old customer record to the new one.
  Check User Authorizations: Ensure that you have the necessary authorizations to make changes to supplier information. Lack of proper permissions can also lead to such error messages.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for detailed information on customer and supplier management, as well as error message handling.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on handling supplier changes.
  Support Forums: Engage with SAP community forums or support channels where other users may have encountered similar issues and can provide insights or solutions.
  
  If the issue persists after following these steps, it may be beneficial to reach out to SAP support for further assistance.