You can sell tickets to your events so you will have more customers at your events. With this feature, they can stay up to date on every aspect of your events effortlessly. Sell Tickets and Collect RSVPs: RSVP and instalment support lets you know exactly who will attend your events. Pay using your own website. Works with virtual functions: ECA works with both face-to-face and virtual functions. Provide RSVPs or passes for functions facilitated through Zoom, Skype, Hangouts, etc.