How To Fix USMD1024 - Data model &1, entity type &2: Relationship &3 is assigned more than once

SAP Error Message - Details

• Message type: E = Error

• Message class: USMD1 - Datenmodel

• Message number: 024

• Message text: Data model &1, entity type &2: Relationship &3 is assigned more than once

What causes this issue?

An entity type with storage and use type <LS>1</></> <ZH>cannot</> be
assigned multiple relationships with the same name. This applies to both
direct and indirect assignments (using other entity types with storage
and use type <LS>4</>).

System Response

The data model cannot be saved or activated.

How to fix this error?

Use different names for the relationships.

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.