The trip is sold out or booking is closed

Booking closes when the organizer’s deadline passes or when every package is sold out. The trip page then shows one of three things.

You see	Do this
Join Waitlist	Add your name. The organizer invites from the list when a place frees up. See Join the waitlist
Booking closed or Sold out, greyed out	There is no waitlist. Contact the organizer from their organizer page, or find another trip on Discover
Invited from the waitlist? I have a code	You were sent a personal invitation. Enter the code, or open the link in the email. See Use a booking invitation

A personal invitation opens sold-out packages for you, but not sold-out add-ons.