How To Fix WN463 - Existing BP &1 will be assigned; maintain customer and supplier

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 463

• Message text: Existing BP &1 will be assigned; maintain customer and supplier

What causes this issue?

You are creating a plant and need to assign a business partner to the
plant.
The business partner you want to assign has currently neither the
required customer nor the required supplier assigned.

System Response

It is not possible to assign a business partner without a customer to a
plant. If the plant profile of the plant also requires a supplier, it is
not possible to assign a business partner without a supplier to the
plant.

How to fix this error?

Use the business partner maintenance to extend the business partner by a
customer and a supplier.

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 WN463 - Existing BP &1 will be assigned; maintain customer and supplier ?

  The SAP error message WN463 indicates that there is an issue with the assignment of a Business Partner (BP) in the system. Specifically, it suggests that an existing Business Partner is being assigned, but the system requires that both customer and supplier roles be maintained for that Business Partner.
  Cause:
  The error typically arises in the following scenarios:
  
  Incomplete Data: The Business Partner has been created, but the necessary roles (customer and/or supplier) have not been assigned or maintained.
  Role Assignment: The system expects that if a Business Partner is to be used in a certain context (e.g., as both a customer and a supplier), both roles must be properly configured.
  Data Consistency: There may be inconsistencies in the data related to the Business Partner, leading to the system not being able to process the assignment correctly.
  
  Solution:
  To resolve the WN463 error, you can follow these steps:
  
  
  Check Business Partner Roles:
  
  Go to the Business Partner transaction (e.g., BP).
  Enter the Business Partner number that is causing the issue.
  Check the roles assigned to the Business Partner. Ensure that both the customer and supplier roles are maintained.
  
  
  
  Maintain Customer and Supplier Data:
  
  If the Business Partner is supposed to be both a customer and a supplier, ensure that you have filled in all the necessary data for both roles.
  For the customer role, ensure that all required fields (like sales area, payment terms, etc.) are filled out.
  For the supplier role, ensure that all necessary fields (like purchasing organization, payment terms, etc.) are filled out.
  
  
  
  Save Changes:
  
  After making the necessary changes, save the Business Partner data.
  Try to perform the action that triggered the error again.
  
  
  
  Check Authorizations:
  
  Ensure that you have the necessary authorizations to maintain Business Partner data. Lack of permissions can sometimes lead to incomplete data being saved.
  
  
  
  Consult Documentation:
  
  If the issue persists, consult SAP documentation or your internal SAP support team for further troubleshooting steps.
  
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like BP (Business Partner) to manage Business Partner data.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
  Business Partner Configuration: Familiarize yourself with the configuration settings for Business Partners in your SAP system, as these can affect how roles are assigned and managed.
  
  By following these steps, you should be able to resolve the WN463 error and ensure that the Business Partner is correctly configured for both customer and supplier roles.