As an admin or content owner, you want to make sure people can join a waitlist for an event that is at capacity, automatically adding waitlisted people as attendees if space opens up.
Go to the event you want to enable a waitlist for.
Open the context menu (button with three dots) and select Edit.
The Edit Event page opens.
Turn on the Waitlist option.
Set the Waitlist Cap to a number greater than 0.
Save your changes.
People can now join the waitlist for the event if the enrollment cap is already met.
If you want to add someone to the waitlist for a full event, enroll them in the event. They are added to the waitlist if it is enabled.
There are various nuances at play in the use of waitlists. Learn more about how waitlists work.
You can prioritize people on the waitlist manually from Manage Attendance to determine who gets enrolled first if space opens up.