Once your class or event is full, Book That In will automatically prevent new people from booking on, and will instead give them the option to join the waiting list.
By default, the system will simply collect the customer's name and email address for you, and you can then use the built-in functionality to notify everyone (or select people) on your waiting list when places come available.
However, sometimes you may want to collect more information when people join the waiting list.
For example, you may wish to collect a phone number, or a date of birth, or something similar.
Fortunately, there is a way to do this in Book That In* - by assigning some or all of your normal booking questions as 'Waiting List Fields'.
This video shows you how to do this:
* Please note - this functionality works with classes and events, but not subscriptions at this point in time.