The waiting list is on for every store. Switch it off in Store Management → Messages → Customer messages if you don't want it.
How clients join
When the day they want is full, Book Now offers the waiting list. They keep the tech and services they picked, choose a time range (morning, afternoon, evening or any time) and leave their name and phone number.
When a time opens
When a booking is cancelled or moved, NailPocket checks the waiting list. Everyone waiting for a matching time gets a text (and an email if they left one) with a link to book it. Nothing is held: the first to book gets it. Each request gets at most three messages.
See who's waiting
Tap Waiting on the calendar. Staff can add a client who calls in, or take someone off the list. A request closes on its own once the client books that day. The full history is on the Waiting List page.