How To Fix WN493 - Error while processing supplier &1; cannot change retail site assignment

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 493

• Message text: Error while processing supplier &1; cannot change retail site assignment

What causes this issue?

You have started ALE inbound processing of an IDoc for a supplier that
is assigned to a retail site in the target system.
The IDoc field E1LFA1M-WERKS is filled with a different value than the
value in the target system.

System Response

Changing the plant assignment of a supplier that is assigned to a retail
site is not supported. The system stops processing the IDoc.

How to fix this error?

Adapt the data in the source system accordingly.

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 WN493 - Error while processing supplier &1; cannot change retail site assignment ?

  The SAP error message WN493 indicates that there is an issue with processing a supplier due to restrictions on changing the retail site assignment. This error typically occurs in the context of managing supplier data in the SAP system, particularly when dealing with retail site assignments.
  Cause:
  The error can be caused by several factors, including:
  
  Locked or Inactive Supplier: The supplier you are trying to modify may be locked or inactive, preventing any changes to their retail site assignment.
  Incorrect Authorization: The user may not have the necessary authorizations to make changes to the supplier's retail site assignment.
  Data Integrity Issues: There may be inconsistencies or issues with the data related to the supplier or the retail site that need to be resolved before changes can be made.
  System Configuration: Certain configurations in the SAP system may restrict changes to retail site assignments for specific suppliers.
  
  Solution:
  To resolve the WN493 error, you can take the following steps:
  
  Check Supplier Status: Verify if the supplier is active and not locked. You can do this by checking the supplier's status in the relevant transaction (e.g., XK03 for vendor master data).
  Review Authorizations: Ensure that the user attempting to make the changes has the necessary authorizations. You may need to consult with your SAP security team to verify this.
  Data Validation: Check for any data integrity issues related to the supplier or the retail site. Ensure that all required fields are filled out correctly and that there are no inconsistencies.
  Consult Configuration Settings: Review the configuration settings related to supplier management and retail site assignments. If necessary, consult with your SAP Basis or configuration team to understand any restrictions that may be in place.
  Use Transaction Codes: Utilize relevant transaction codes (like XK02 for changing vendor data) to attempt the changes again after addressing the above points.
  Check for Dependencies: Sometimes, other dependent data or processes may be affecting the ability to change the retail site assignment. Ensure that there are no ongoing processes that could be causing the issue.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP Notes can provide specific guidance or fixes for known problems.
  Documentation: Refer to SAP documentation for vendor management and retail site assignments to understand the requirements and restrictions better.
  Support: If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance.
  
  By following these steps, you should be able to identify the cause of the WN493 error and implement a solution to resolve it.