So we've been struggling moving our most recently customer over from Exchange to SM. Right now, battling trying to import calendar items. After setting up the new customer account (with ActiveSync) and Outlook 2013, we're trying to import their calendar PST in their mailbox manually. And we get this:
We've tried import both a CSV of the calendar items and a PST with no luck. Is the simple answer that we cannot import any calendar items into SM? Cause that's an issue. I'm also trying to find a way to add an attachment to a calendar item but can't seem to. Is that not an option?