Activate Auto Lock (locking automatically a set time after the door was unlocked) on your Smart Lock at selected weekdays to make sure the door is locked e.g. over night and at weekends. (Combine with Deactivate Auto Lock Applet to create an automation based on office hours or similar.)
This action will activate Auto Lock. Auto Lock automatically locks your door a certain time after the last unlock or if it is closed (with door sensor activated).