Business Configuration Set can only be added as new entry

What causes this issue?

The Business Configuration Set which you want to copy contains several
data records.

System Response

There is no unique assignment of the data records which you want to
overwrite with the Business Configuration Set and the BC Set data
records.

How to fix this error?

Copy the BC Set as a new entry: choose "New entries" and "Copy BC Set".

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.