there is a new version of EasyAppointments 1.11.1 with added filter `ea_can_make_reservation` that can be used for extending the check if your customer can make a booking. For example you want to limit one customer, one Appointment per week etc. From now on you can add your custom code to that filter.
where would i add that custom code? and can i check against a custom field?
what variables will be available to this? Is there any documentation?
there will be update to documentation to cover that part soon.