How To Fix MDG_DT_UI016 - Foreign key relationship is already defined for &1 in relation &2

MDG_DT_UI016 - Overview

• Message type: E = Error

• Message class: MDG_DT_UI - Messages related to the Configuration Workbench UI

• Message number: 016

• Message text: Foreign key relationship is already defined for &1 in relation &2

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

MDG_DT_UI016 - Details

• The SAP error message MDG_DT_UI016 indicates that there is an issue with the foreign key relationship in the Master Data Governance (MDG) system. Specifically, it means that a foreign key relationship is already defined for the specified data element (represented by &1) in relation to the specified entity (represented by &2).
  
  Cause:
  This error typically occurs when:
  
  You are trying to create or modify a foreign key relationship that already exists in the system.
  There may be an attempt to define a duplicate foreign key relationship for a data element that is already linked to another entity.
  The data model or configuration might have inconsistencies or conflicts.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Existing Relationships:
  
  Review the existing foreign key relationships for the specified data element and entity. You can do this by navigating to the relevant data model in the MDG configuration.
  Ensure that the relationship you are trying to create does not