If an event works with TicketSwap, in certain cases you will be able to offer your ticket(s) for sale from your MyOrder page. You will then automatically be redirected to TicketSwap. Please note it is only possible to resell tickets via TicketSwap with a TicketSwap account. If you do not yet have one, you will be asked to create an account first.
Once your tickets are offered for sale through TicketSwap, all further communication regarding the sale will go through TicketSwap itself. TicketSwap will also be responsible for providing you with the payment for your sold ticket.
In certain cases, an event will work with TicketSwap, but the option will not be available in your MyOrder page. In these cases you will be able to download your ticket(s) in pdf format from your MyOrder and offer them for sale on TicketSwap manually.
If you are not sure if the event in question works with TicketSwap, always check the official event website or FAQ to be sure.