How To Fix USMD1591 - Model &1, ent.type &2: Only 1 foreign key relationship for attribute &3

USMD1591 - Overview

• Message type: E = Error

• Message class: USMD1 - Datenmodel

• Message number: 591

• Message text: Model &1, ent.type &2: Only 1 foreign key relationship for attribute &3

What causes this issue?

You have specified the attribute &V2& as a key field. Such attributes
must occur in only one foreign key relationship.

System Response

The data model cannot be saved or activated.

How to fix this error?

Edit the fields in the <LS>Fields of Foreign Key Relationships</> view
in Customizing activity <DS:SIMG.FMDM_USMD001>Edit Data Model</>.

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.

USMD1591 - Details

• The SAP error message USMD1591 typically occurs in the context of SAP Master Data Governance (MDG) when there is an issue with the configuration of foreign key relationships in the data model. This error indicates that there is an attempt to define more than one foreign key relationship for a specific attribute, which is not allowed.
  
  Cause:
  The error message "Only 1 foreign key relationship for attribute &3" suggests that:
  
  The attribute in question (denoted by &3) is configured to have multiple foreign key relationships, but the system only allows one.
  This can happen due to incorrect configuration in the data model or when trying to map multiple relationships to a single attribute.
  
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Data Model Configuration:
  
  Go to the data model configuration in SAP MDG.
  Identify the attribute (denoted by &3) that is causing the issue.
  Review the foreign key relationships defined for this attribute.
  
  
  
  Modify Foreign Key Relationships:
  
  Ensure that