Your questions
The public page asks for an application instead of opening checkout. You choose the fields — party size, a plus-one, how they heard about the night.
Registration lock
Turn the public page into an application. Guests fill out the form. You approve them. Only then can that email check out.
A form before checkout
Ask what you need — party size, plus-one, how they heard about the night — on the application.
You approve the email
Checkout stays locked until that guest's application is approved.
Then it is a normal ticket
Approved guests buy or claim like anyone else. The door still scans a ticket.

Locked checkout
Your questions
The public page asks for an application instead of opening checkout. You choose the fields — party size, a plus-one, how they heard about the night.
Approval is the key
That guest's email cannot check out until you approve the application. Everyone else still sees the form.
Then a normal ticket
Once approved, they buy or claim like any other guest. The door scans a ticket, not the application.