Hi @yorkuDE01,

I suppose this could be done when you are trying to create / setup federated connection using API. But, I don't think so this could be possible via UI, where you can reference a key-vault scoped secret.

But please refer the documentation for best practise and more inputs on Lakehouse federation: https://docs.databricks.com/aws/en/sql/language-manual/sql-ref-syntax-ddl-create-connection

Best Regards,
Nivethan V