How To Fix USMD1040 - Data model &1, entity type &2: Leading entity type &3 is invalid

USMD1040 - Overview

• Message type: E = Error

• Message class: USMD1 - Datenmodel

• Message number: 040

• Message text: Data model &1, entity type &2: Leading entity type &3 is invalid

What causes this issue?

Relationships with <LS>Leading</> or <LS>Qualifying</> as the
relationship type are not allowed between entity types with the
<DS:DE.USMD_USAGE_TYPE>storage and use type</> <LS>1</> or <LS>2</> and
entity types with the storage and use type <LS>3</>.

System Response

The data model cannot be saved or activated.

How to fix this error?

Delete the invalid relationship.

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.

Smart SAP Assistant

• What is the cause and solution for SAP error message USMD1040 - Data model &1, entity type &2: Leading entity type &3 is invalid ?

  The SAP error message USMD1040 typically occurs in the context of SAP Master Data Governance (MDG) when there is an issue with the data model configuration, specifically related to entity types and their relationships. Here’s a breakdown of the cause, potential solutions, and related information for this error:
  
  Cause:
  
  
  Invalid Leading Entity Type: The error indicates that the leading entity type specified in the data model is not valid. This could be due to:
  
  The leading entity type not being defined in the data model.
  A mismatch in the entity type names or IDs.
  The leading entity type being deactivated or deleted.
  
  
  
  
  Configuration Issues: There may be issues in the configuration of the data model, such as incorrect relationships between entity types or missing dependencies.
  
  
  Transport Issues: If the data model was transported from one system to another, there might be inconsistencies or missing components in the target system.
  
  
  
  Solution:
  
  
  Check Entity Type Definitions:
  
  Verify that the leading entity type