How To Fix CRM_BUPA_MAPPING300 - A reference business partner is already maintained

CRM_BUPA_MAPPING300 - Overview

• Message type: E = Error

• Message class: CRM_BUPA_MAPPING - CRM BP Mapping Business Partner to Customer Master in R/3

• Message number: 300

• Message text: A reference business partner is already maintained

What causes this issue?

You tried to download the reference customer from the connected ERP
system to CRM. However, a reference business partner has already been
maintained in the CRM system.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

The ERP reference customer may have already been replicated from the ERP
backend system to the CRM system. Using transaction CRMM_BUPA_MAP in
CRM, check whether the ERP reference customer from the ERP backend
system is mapped to the reference business partner in CRM.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CRM_BUPA_MAPPING300 - A reference business partner is already maintained ?

  The SAP error message CRM_BUPA_MAPPING300 indicates that there is an attempt to create or maintain a business partner (BP) mapping, but a reference business partner is already assigned to the target business partner. This typically occurs in the context of Customer Relationship Management (CRM) when dealing with business partner data.
  
  Cause:
  The error is triggered when:
  
  You are trying to assign a reference business partner to a target business partner that already has a reference assigned.
  There may be an attempt to create a duplicate mapping for the same business partner.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Existing Mappings:
  
  Go to the business partner transaction (e.g., transaction code BP).
  Look for the target business partner and check its existing mappings to see which reference business partner is already assigned.
  
  
  
  Remove or Change Existing Mapping:
  
  If you need to change the reference business partner, you will first need to remove the existing mapping.
  Navigate to the relevant