Calendar Invites Not Showing Up On Iphone. If you don’t want to be notified when someone declines a meeting, go to settings > calendar, then turn off show invitee declines. Tap show all, then tap icloud calendar.
Downloading the outlook app would be the fix for this problem Since the calendar invites are still not being received, we’d recommend that you contact apple support directly through contact apple support for further troubleshooting to resolve this issue.