The Auto Lock feature automatically locks your door when it has been unlocked for a certain period of time.
In order to enable Auto Lock, tap on the desired Smart Lock in the Nuki app and enter the lock settings. Then go to “Manage Smart Lock”. Here you can configure the “Auto Lock” feature and select the desired time (30 sec - 30 min) after which the Nuki Smart Lock should lock the door.
Automatic locking actions triggered by the Auto Lock feature are documented in the activity log.