How To Fix USMD1620 - Data model &1, entity type &2: Attribute &3 is a key field

SAP Error Message - Details

• Message type: E = Error

• Message class: USMD1 - Datenmodel

• Message number: 620

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

What causes this issue?

The attribute &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 attribute 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 attribute.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.