How To Fix USMD1059 - Data model &1: Entity type &2 has leading relationship to entity type &3

USMD1059 - Overview

• Message type: E = Error

• Message class: USMD1 - Datenmodel

• Message number: 059

• Message text: Data model &1: Entity type &2 has leading relationship to entity type &3

What causes this issue?

In <LS>Leading</> relationships, the storage and use type of the
from-entity type must be <LS>1</> if the storage and use type of the
to-entity type is <LS>4</>.

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.

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 USMD1059 - Data model &1: Entity type &2 has leading relationship to entity type &3 ?

  The SAP error message USMD1059 indicates that there is a problem with the data model configuration in the SAP Master Data Governance (MDG) system. Specifically, it points out that an entity type (let's call it Entity Type 2) has a leading relationship to another entity type (Entity Type 3), which can cause issues in the data model.
  
  Cause:
  The error typically arises due to the following reasons:
  
  Incorrect Relationship Definition: The relationship between the entity types is not defined correctly. In a leading relationship, the leading entity (Entity Type 2) should not have a direct relationship to the dependent entity (Entity Type 3) in a way that violates the expected hierarchy or relationship rules.
  Data Model 
  Configuration Issues: There may be inconsistencies or misconfigurations in the data model setup, such as incorrect cardinality or relationship types.
  Modeling Errors: Errors in the modeling of the data entities, such as defining a relationship that does not conform