I'm looking for a way to find all these devices and put them in a Smart Group. Unfortunately the options available for "Last Enrollment" is strictly before/after n date & before/after n days. I can't seem to figure out how to finagle it to report on empty fields.
I'd also settle for where it is in the actual database, but so far my clumsy attempts at finding it in MySQL have been fruitless.
Thanks!
