How To Fix UD820 - A data model has already been assigned to this component

SAP Error Message - Details

• Message type: E = Error

• Message class: UD - EDM - Enterprise Data Model

• Message number: 820

• Message text: A data model has already been assigned to this component

What causes this issue?

You wish to assign a data model to an application component.
However, this component already has a data model assigned to it.

System Response

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

How to fix this error?

Please check your selection and assign the data model to another
application component.

Error message extract from SAP system. Copyright SAP SE.