The canonical list of class booking statuses, what each means, and what to change to unblock a Closed class.
Every class shows a Booking Status — both as a pill on the classes list and as a card at the top of the class detail page. It tells you, at a glance, whether the class is currently bookable, and if not, why.
Note
Visibility and Booking Status are two separate things. Visibility (Hidden / Unlisted / Public) controls WHO can find the class. Booking Status (Open / Partially full / Full / Closed · …) controls WHETHER bookings are being accepted right now. A Public class can still be Closed (e.g. its first session has passed), and an Unlisted class can be Open — bookers with the direct link can still book it.
Tip
On the class detail page, the Booking Status card shows both the label AND the reason — e.g. "Closed · first session past" — so you can fix the cause directly. The same pill is shown on the classes list and on the class's public page.
Whether a class is Open, Partially full, or Full depends on per-session coverage when pay-as-you-go is on, and on class-level coverage otherwise.