Allow booking by invitation only? Single-use booking URLs?
We are trying to find a way to allow the public to book appointments for covid vaccines, but we need to pre-screen each person first to determine eligibility. If someone is eligible, I'd like to send them a link to a bookings page to schedule their appointment, but I need to ensure that they can only schedule one appointment using the URL I send. They should not be able to schedule an appointment for a second person using the same link. Is that possible?
