Client wants to direct people to a landing page. Within the landing page, there is a registration page that takes some information from the user. One of the questions is for the user to select from a time slot to attend.
This is a first-come-first-serve time slot, and only 1 person per slot. So I need to asynchronously check if the slot is open from a data extension. So is there any way to use AJAX to get to a data extension?