You can change, hide, or delete ticket types from Ticketing & Payments > Tickets, Add-ons & Donations > Tickets. Which option you choose depends on whether you want to stop future sales, change what existing attendees can access, or limit when a ticket is available.
Deleting a ticket
Deleting a ticket removes that ticket type from Ticketing & Payments > Tickets, Add-ons & Donations > Tickets and stops it being sold. It does not delete paid purchase records that already exist for attendees.
Existing purchases keep the access and expiry settings that were copied onto the purchase when the attendee claimed or bought the ticket. After the ticket itself has been deleted, you cannot go back to that ticket row to edit it or use Sync Settings to Purchases for those previous attendees.
If you only want to stop new attendees from selecting a ticket, it is usually safer to hide, deactivate, or date-limit the ticket instead of deleting it. If you need to change access for previous ticket holders, make the change and sync it before deleting the ticket. See Changing Permissions on a Ticket After It's Been Claimed.
If you need to remove an individual attendee's ticket access, go to Registration & Attendees > Attendees, open that attendee, and remove the relevant ticket from their Purchases or Tickets panel. Deleting the whole attendee record is a larger action and is only appropriate if you truly want to remove that registration record.
Limiting when a ticket can be bought
If the ticket should only be available for purchase during a certain period, open its (...) menu and select Manage Ticket. Open Pricing, then select the pencil icon (Edit this price). Under Price timing, set Availability to Date range and enter the From and/or To dates. Select Update, then Save and Close.
A ticket price with a To date remains available until the end of that date in the event timezone. For example, a price available to September 5 remains available until 11:59 pm on September 5.
For a fuller walkthrough, see Limited-Time Discount on Ticket Prices.
Limiting how long ticket content is available
If the attendee should be able to buy or claim the ticket, but its associated content should expire later, open Manage Ticket > Access. Under Access expiration, choose Expire on a date for a fixed expiry date, or Use a countdown for an access period based on purchase or broadcast timing. Choose What access should expire?, complete the date or countdown fields, then select Save.
Expiry settings affect the attendee's access after they have the ticket. Price availability controls whether the ticket can be selected during checkout.