NOTE: This is the second event setup for Gift cards. Refer to How do I make gift cards available to purchase for an event? for the first event.

In Workspace > Events > Event Pages, create or edit your Event Page.

On the Event Settings step, scroll down to the Financial Information section. Make sure Accepting Gift Card is set to YES. Next to this, you can also customize the Gift Cards Caption.

Next,  navigate to the Event Setup step and add your ticket levels for purchase. Once this is done, go to the Gift Cards tab and check off which gift cards you would like to accept for the event.

After this is all implemented into your event page, users will be able to enter their gift card code and use it on their event purchase. The image below shows what this will look like when someone uses a gift card for an event.