Manage an event waitlist — practical guide

A waitlist only makes sense if your capacity is capped at your real limit (room, gear, safety). If you have physical room, it's a false good idea — people prefer to register directly. Enable it when: — Your event hits sold out > 5 days before the date — The 'registrants / cancellations' ratio is known and > 5% — You want to stop handling case-by-case 'DM signups'

On JustOneEvent, the moment capacity is reached, the signup form still accepts requests but flags them as 'waitlisted'. The registrant receives a distinct email titled 'Waitlist — [Event name]' confirming their request is on the list and that they'll be notified by email if a seat opens up (no QR at this stage). When a registrant cancels (or is cancelled by the organiser), the first waitlisted person is automatically promoted to 'Confirmed' and receives a distinct email ('A seat opened up') with their QR code and .ics file. The next slot bumps up. No manual intervention from you.

On JustOneEvent, promotion is **always immediate**: a freed seat triggers an email to the head of the queue within the minute. No validation delay, no batch promotion — the seat returns instantly to the first person in line. This choice maximises the chance they confirm fast. The alternative — a 24-hour validation grace period — would catch some bad surprises (seat left vacant by an absent registrant) but adds UX complexity. The simple 'first come, first served' rule is more predictable for your attendees. If you want to manually batch promotions (e.g. large event with batched validation), turn off the waitlist and handle signups by email instead — you keep manual control but lose the automation.

Waitlisted attendees are your best prospects for the next edition — don't leave them in the dark. 3 messages to plan: — Confirmation 'you are on the waitlist' (sent automatically by the platform on signup) — 'A seat opened up, you've been promoted' (sent automatically when the system promotes a registrant) — 'The event has passed, we'll let you know about the next session' — to send manually after the event. JustOneEvent has no built-in broadcast tool: export the CSV of waitlisted registrants and send via your usual mailer (Mailchimp, Brevo, or simple BCC in Gmail).