Scheduling appt+ session into client's gmail

hello,

so i am testing the appointments settings, and i requested that the website connects (as the client booking the session with the service provider) with my gmail and sets up the appointment.

it manages to stick in the date and the time, but NOTHING else, no name, no location, no description.

what did i miss?
where do i set that up so it populates the appointment booking with the correct details?