We’re looking to implement a booking system via woocommerce using a third party system. Is there any documentation anywhere regarding hooks available to sync with an external availability calendar and to push new bookings out.
hooks are not yet documented. It will be done in a day or two but I am not sure that you will be able to perform all things that are needed for such implementation.
new page is created and there will be all hooks that can be used to extend EasyAppointments even more: https://easy-appointments.net/documentation/hooks-and-callbacks/