How To Fix WN459 - Existing business partner &1 with customer &2 will be assigned

WN459 - Overview

• Message type: E = Error

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

• Message number: 459

• Message text: Existing business partner &1 with customer &2 will be assigned

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message WN459 - Existing business partner &1 with customer &2 will be assigned ?

  The SAP error message WN459 indicates that there is an existing business partner (BP) that is already associated with a customer number in the system. This typically occurs during the process of creating or modifying a business partner or customer record in SAP, particularly in the context of the SAP Customer Relationship Management (CRM) or SAP S/4HANA systems.
  
  Cause:
  The error arises when:
  
  You are trying to create a new business partner or customer that conflicts with an existing one.
  The system detects that the business partner you are trying to create or modify is already linked to another customer number.
  There may be inconsistencies in the data or duplicate entries in the database.
  
  
  Solution:
  To resolve the WN459 error, you can take the following steps:
  
  
  Check Existing Business Partners:
  
  Use transaction codes like BP (Business Partner) or XD03 (Display Customer) to search for the existing business partner and customer numbers.
  Verify if the business partner you are trying to