How To Fix WN453 - No customer assigned to business partner &1

WN453 - Overview

• Message type: E = Error

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

• Message number: 453

• Message text: No customer assigned to business partner &1

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 WN453 - No customer assigned to business partner &1 ?

  The SAP error message WN453 "No customer assigned to business partner &1" typically occurs when there is an attempt to perform an operation that requires a customer to be linked to a specific business partner, but no such assignment exists in the system. This can happen in various scenarios, such as when trying to create a sales order, invoice, or any other transaction that requires customer information.
  
  Cause:
  
  Missing Assignment: The business partner (BP) in question has not been assigned a customer role in the system.
  Incorrect Business Partner: The business partner ID being referenced may not be valid or may not exist in the system.
  Data Inconsistency: There may be inconsistencies in the data, such as missing or incorrect entries in the business partner master data.
  
  
  Solution:
  
  
  Check Business Partner Assignment:
  
  Go to the Business Partner transaction (BP) in SAP.
  Search for the business partner ID mentioned in the error message.
  Verify if the customer role (e.g., "FLCU00"