We offer an integration with CartStack for you to have the ability to track when someone does not complete the purchase or registration process. As shoppers/attendees abandon carts on your site, CartStack will capture their data in real-time and send them a series of email reminders at just the right moment to get them to convert!
To see if this premium integration will work for you, check out this price estimator. If this is an integration you would like to set up, follow the instructions provided by CartStack.