You can change, hide, or delete ticket types from Revenue > 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 Revenue > 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 Reporting > 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, edit the ticket and open the Prices step. Set the price Availability to Date Range, then add the available-from and/or available-to dates.
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 the ticket's associated content should expire later, edit the ticket and open the Expiry step. Choose Expire By Date for a fixed expiry date, or use the countdown option for an access period based on purchase or broadcast timing.
Expiry settings affect the attendee's access after they have the ticket. Price availability controls whether the ticket can be selected during checkout.