Before you can take bookings on a form you'll need to create an Event Booking Configuration. The configuration defines the conditions for the booking, for example what days can be booked or how far in the future a booking can be made.
To create or edit an Event Configuration in your browser open the control centre and navigate to XForms Pro > Event Booking.
Here you will see exiting configurations and you'll also have the option to create a new one.
To create a new one configuration click the Create Configuration button on the right hand side or to edit an existing configuration click the name of the configuration you want to edit from the list.
This will open the event configuration details page where you will be able to configure your event.