Ticket Cancellation Email
When an Admin cancels a ticket, the Registrant of that ticket will receive a Ticket Cancellation email. If the Buyer is different from the Registrant, they too will receive the Ticket Cancellation email.
Event Cancellation Email
When an Admin cancels an event and decides to issue the Event Cancellation Email, all of the Registrants and Buyers will receive an Event Cancellation Email.