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Sorry if this has been covered already but I can't seem to get my Outlook calendar to sync with my MS.
I don't use the native iOS calendar app at all. I use my corporate Exchange Outlook mobile client on my IPhone 6S Plus (iOS 11.2.2).
I did run a test by adding a test appt to the native iOS calendar app and that did show up on my MS but I can't get it to sync with my Outlook calendar.