How To Fix USMD1074 - Data model &1, entity type &2 has invalid higher-level entity types

USMD1074 - Overview

• Message type: E = Error

• Message class: USMD1 - Datenmodel

• Message number: 074

• Message text: Data model &1, entity type &2 has invalid higher-level entity types

What causes this issue?

Entity type &V2& is used as an additional entity type with usage
<LS>hierarchy name</> in the hierarchies of entity type &V3&. That is
why entity type &V2& can only have higher-level entity types that are
also the higher-level entity types for entity type &V3&. Entity type
&V4& is a leading entity type for &V2&, but not for &V3&.

System Response

The data model cannot be saved or activated

How to fix this error?

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.

USMD1074 - Details

• The SAP error message USMD1074 indicates that there is an issue with the data model configuration in the SAP Master Data Governance (MDG) system. Specifically, it points out that the specified data model and entity type have invalid higher-level entity types. This typically occurs when the hierarchy of entity types is not correctly defined or when there are inconsistencies in the relationships between the entity types.
  
  Cause:
  
  Incorrect Configuration: The higher-level entity types may not be correctly configured in the data model. This can happen if the entity types are not properly linked or if there are missing relationships.
  Data Model Changes: If there have been recent changes to the data model, such as adding or removing entity types, it may lead to inconsistencies.
  Transport Issues: If the data model was transported from one system to another, there may be issues with the transport that caused the hierarchy to become invalid.
  Custom Development: If there