How To Fix O1819 - Customer master record '&' contains vendor number '&'

O1819 - Overview

• Message type: E = Error

• Message class: O1 - IS-Oil : Message pool exchanges

• Message number: 819

• Message text: Customer master record '&' contains vendor number '&'

What causes this issue?

Exchange partners customer master record '&v1&' does not contain
exchange partners vendor number.

System Response

Error Message

How to fix this error?

Please make sure that the customer master record '&V1&' will contain
exchange partners vendor number.

Error message extract from SAP system. Copyright SAP SE.

O1819 - Details

• The SAP error message O1819 indicates that there is a conflict in the customer master record where a customer is also assigned a vendor number. This situation typically arises when a business partner is set up in both roles (customer and vendor) but is not configured correctly in the system.
  
  Cause:
  
  Dual Role Assignment: The customer master record is linked to a vendor number, which is not allowed in certain configurations or scenarios.
  Data Entry Error: During the creation or modification of the customer master record, the vendor number may have been incorrectly entered or assigned.
  
  Configuration Issues: The system may not be set up to handle business partners that serve dual roles properly.
  
  
  Solution:
  
  
  Check the Customer Master Record:
  
  Go to the customer master record in transaction code XD03 (Display Customer) or XD02 (Change Customer).
  Verify if the vendor number is indeed assigned to the customer record.
  
  
  
  Remove the Vendor Assignment:
  
  If the customer should not have a vendor