*"Booking (but not after Check-in)" will trigger within the selected trigger time and time window after the booking was made until check-in (not after check-in).
*"Check-in" will trigger from the check-in date of the booking.
*"Check-out" will trigger fro the check-out date of the booking.
Note '''Check-in''' requires a negative Trigger Time to set the trigger time before check-in. A positive Trigger Time will trigger that long after check-in.