When the master keyholder generates QR code, the following can be chosen:
The unlock should happen automatically, in which case the user will only scan the code and their key will be activated immediately
The unlock should be confirmed by the user, which means that scanning the code will make the appropriate key show on their smartphone screen, but they will still need to tap on an unlock button to unlock the door
The above refers to any action performed on the lock, whether it be an “Open” (unlock/lock) buzzer, or a single “Lock” or “Unlock” action that’s typical for installations that include a Nuki key turner.