Why is availability lower than my capacity?

Remaining availability is capacity minus held tickets, sold tickets, and tickets sitting in active carts. Hold-management allocations and per-ticket-type quantity limits are the two causes organizers most often forget.

The Remaining number in your pricing table (and what buyers can actually buy) is calculated live:

Remaining = Capacity − held tickets − sold tickets − tickets in active carts

Capacity is the performance's Capacity field. The other three are why Remaining is almost always lower — work through them in order.

1. Hold-management allocations

The cause organizers forget most often. Anything you allocate under Pricing → Hold management — box-office reserves, sponsor comps, any hold category — is subtracted from public availability for that performance, whether or not those held tickets have been issued yet.

Open your event and go to Pricing → Hold management.
Check the Hold quantity per performance for each hold category, and the Held total against the performance's Capacity.
Reduce any hold quantities you no longer need — the seats return to public sale immediately.

2. Tickets sold

Every purchased ticket counts against the performance, across all ticket types and sales channels. The pricing table's Total tickets and Remaining columns show this per performance.

3. Tickets sitting in buyers' carts

When a buyer adds tickets to their cart, those tickets are reserved for the cart's hold window — the Checkout time limit (minutes) in your organizer settings, between 1 and 30 minutes (10 by default). While the cart is active, those tickets are unavailable to everyone else. If the buyer doesn't check out in time, the cart expires and the tickets are released back for sale automatically — no action needed from you.

4. A per-ticket-type Limit qty

If one ticket type shows fewer remaining than the performance overall, check its Limit qty in Pricing → Pricing. A limited type's remaining count is the tighter of two numbers: the performance's overall remaining, and its own quota (limit minus that type's sold and in-cart tickets). A "sold out" VIP type with general admission still available usually just means the VIP Limit qty has been reached — raise or clear the limit to free it up.