Shelly uni Output Release Door

I''m trying to do the same but I connected directly to the Door. But I can get the Relay to open... it's is open in the App but not passing voltage.

I'm using AC 16V transformer for the Uni and to open the door.

After going through numerous posts here, I've reached the conclusion that a relay similar to the Finder Switch Box Power Relay Finder Switch Box Power Relay, 12V ac Coil, 12A Switching Current, SPST might be required.

I'm seeking assistance with the wiring of the relay to enable the door to open. I have the button working, I just need help with the door lock.