To maximize enrollments from Catalog, it would be helpful to have more robust analytics for "empty shopping cart" type of marketing. This idea is to request Catalog have a way of tracking incomplete registrations/enrollments for re-marketing ad targeting and email follow up campaigns, like the sample below.
We noticed that you started but did not complete your registration for <insert course name>. If this was unintentional, please click below to try again.
Click here to try again
If you have additional questions before completing your registration feel free to reply to this email with your questions.