Hello @Funfood !

Are you talking a gift card from another location of yours or another square merchant entirely?

If it's another location of yours, the gift cards should be able to be used regularly: swipe the card at payment time and it should run just like a credit card. You can then check out the card activity info on the Gift Cards section of the dashboard.

If it's a gift card from another merchant, unfortunately the gift cards are not interchangeable between merchants. If you've set up some type of sales agreement with another merchant, your best bet is to talk to the merchant about sending you payment for the ticket. If you don't have an agreement set up, unfortunately there's not much you can do.