How To Fix MDG_BS_BP_DATAREPL021 - Fatal error when processing the relationship &3 &4 of &1 and &2

MDG_BS_BP_DATAREPL021 - Overview

• Message type: E = Error

• Message class: MDG_BS_BP_DATAREPL - Messages for Business Partner Data Replication

• Message number: 021

• Message text: Fatal error when processing the relationship &3 &4 of &1 and &2

What causes this issue?

During the bulk inbound processing for business partner relationships
checks are applied. If possible, errors found for a single business
partner relationship are passed to 'Forward Error Handling' . Such
errors do not imply a complete rollback of the bulk message.
Reprocessing for the faulty business partner relationship is possible
with the Postprocessing Desktop.
However some erros which are found at a very late stage of inbound
processing cannot be handled with Forward Error Handling. They result in
a complete ROLLBACK of the processing to ensure data consistency.

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?

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 MDG_BS_BP_DATAREPL021 - Fatal error when processing the relationship &3 &4 of &1 and &2 ?

  The SAP error message MDG_BS_BP_DATAREPL021 typically occurs in the context of Master Data Governance (MDG) when there is a problem processing relationships between business partners (BPs) during data replication or synchronization. The error message indicates a "fatal error" when processing a specific relationship between two business partners.
  
  Cause:
  The error can be caused by several factors, including but not limited to:
  
  
  Data Inconsistencies: There may be inconsistencies in the data of the business partners involved, such as missing mandatory fields or incorrect data formats.
  
  
  Relationship 
  Configuration Issues: The relationship type being processed may not be correctly configured in the system, or it may not be valid for the business partners involved.
  
  
  Authorization Issues: The user or process attempting to replicate the data may not have the necessary authorizations to perform the operation.
  
  
  Technical Issues: There could be underlying technical issues, such as problems with the database, network issues, or issues with the MDG configuration.
  
  
  Custom Logic: If