How To Fix USMD1621 - Data model &1, entity type &2: Reference attribute &3 is a key field

SAP Error Message - Details

• Message type: E = Error

• Message class: USMD1 - Datenmodel

• Message number: 621

• Message text: Data model &1, entity type &2: Reference attribute &3 is a key field

What causes this issue?

A referencing relationship with the name &V3& was assigned to entity
type &V2& in model &V1&. However, the entity type already has a key
field with the same name. Within an entity type, no referencing
relationship can have the same name as a key field.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

The model cannot be activated.
ELSE
The model cannot be saved.
ENDIF

How to fix this error?

Enter a different name for the referencing relationship.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.