Cannot Sync Microsoft Shared Calendar in iOS Calendar App
Hi,
I’m having a really strange issue with calendar shared by Microsoft 365 users. I've full permission on Microsoft 365 shared calendar and add the calendar to my iPhone (iOS 15.4) by Settings > Mail > Accounts > Calendars turn ON already. Confirmed the iOS Calendar App synced existing appointment on iOS Calendar App.
However, I tried to add New Appointment via iOS Calendar App. It cannot update to MS shared calendar. I tried below cases
via iOS Calendar App
- Add New Appointment with time range > Cannot update to MS shared calendar
- Add New Appointment ALL Day > Can update to MS shared calendar
- Delete existing Appointment with time range / ALL Day > Can update to MS shared calendar
- Edit existing Appointment with time range / ALL Day > Can update to MS shared calendar
tried Add(ALL Day or with time range)/Edit/Delete Appointment on MS outlook, iOS Calendar can read the updated.
The issue seems "Add New Appointment with time range" on iOS Calendar
P.S. tried to setup same time zone "Hong Kong" on my iPhone and MS calendar, but it cannot solve.
Any help is appreciated
Winson
iPhone XS, iOS 15