How To Fix USMD1592 - Data model &1, to-entity type &2: Invalid foreign key relationship &3

USMD1592 - Overview

• Message type: E = Error

• Message class: USMD1 - Datenmodel

• Message number: 592

• Message text: Data model &1, to-entity type &2: Invalid foreign key relationship &3

What causes this issue?

Relationships with the type <ZK>foreign key relationship</> are only
allowed for To-entity types with <DS:DE.USMD_USAGE_TYPE>storage and use
types</> 1 or 4.

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.

USMD1592 - Details

• The SAP error message USMD1592 typically indicates an issue with a foreign key relationship in the data model you are working with in SAP Master Data Governance (MDG). This error occurs when there is an invalid foreign key relationship defined between entities in your data model.
  
  Cause:
  The error can be caused by several factors, including:
  
  
  Incorrect Foreign Key Definition: The foreign key relationship defined in the data model may not correspond to the actual structure of the underlying database tables or entities.
  
  
  Missing or Incorrect Mapping: The mapping between the source and target entities may be incorrect or missing, leading to an invalid reference.
  
  
  Data Integrity Issues: There may be existing data that violates the foreign key constraints, such as orphaned records that do not have corresponding entries in the referenced table.
  
  
  Changes in Data Model: If there have been recent changes to the data model, such as adding or removing entities or attributes, it