How To Fix USMD1535 - Data model &1, entity type &2: Invalid use in hierarchy

USMD1535 - Overview

• Message type: E = Error

• Message class: USMD1 - Datenmodel

• Message number: 535

• Message text: Data model &1, entity type &2: Invalid use in hierarchy

What causes this issue?

The hierarchy for entity type &V2& has an additional entity type &V3&
that uses the setting &V4& and the key assignment <LS>Key cannot be
changed, no internal key assignment.</> However, all entity types used
in a hierarchy (except for the entity type on which the hierarchy is
defined), must have the key assignment <LS>Key cannot be changed, no
internal key assignment.</>

System Response

The system cannot activate the data model &V1&

How to fix this error?

Change the type of key assignment for the entity type &V3&

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 USMD1535 - Data model &1, entity type &2: Invalid use in hierarchy ?

  The SAP error message USMD1535 typically indicates that there is an issue with the hierarchy structure in the data model for a specific entity type. This error can occur in the context of SAP Master Data Governance (MDG) when trying to manage or maintain hierarchical data.
  
  Cause:
  The error message "USMD1535 Data model &1, entity type &2: Invalid use in hierarchy" usually arises due to one of the following reasons:
  
  
  Invalid Hierarchical Structure: The entity type you are trying to use in a hierarchy may not be allowed to be part of that hierarchy due to its configuration or the rules defined in the data model.
  
  
  Incorrect Configuration: The data model may not be correctly configured to support the hierarchical relationship you are trying to establish. This could be due to missing or incorrect settings in the data model configuration.
  
  
  Data Integrity Issues: There may be existing data that violates the hierarchy rules, such as