How To Fix UD365 - The attributes of entity type & are consistent

SAP Error Message - Details

• Message type: E = Error

• Message class: UD - EDM - Enterprise Data Model

• Message number: 365

• Message text: The attributes of entity type & are consistent

What causes this issue?

The following checks are made:
1.) Attributes assigned more than once
Attributes are identified via their names. As a result only
unique names are allowed.
2.) Status of data elements
All the data elements assigned to the attributes must
exist and be active when you finish modeling.
The checks did not detect any errors.

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?

Error message extract from SAP system. Copyright SAP SE.