You can choose:
Pre-checkout – shown during the purchase flow
Post-checkout – shown after purchase in the ticket view and the customer's account
Tickets are reserved while pre-checkout questions are completed, so buyers won’t lose their tickets while answering.
You can also decide whether to ask:
Per order – asked once per booking
Per ticket – asked for each ticket purchased
This is especially useful for guest-specific details (names, dietary requirements, accessibility needs), table bookings where each attendee needs to provide information, or events with personalised experiences.