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Sync Internet calendar with office 365 Calendar for all devices (smartphone)



i have a internet calendar (.ics) that i will sync with my office 365 account. In the outlook desktop app i can easy add an internet calendar with username and pw, and i have the ability to edit the sync intervall (1 min) - working fine. My problem ist now, i cant see this calender on my Smartphone. Adding this calendar in doesnt work because MS only allow public ics calendar (why?).  I can copy the internet calender in the outlook app to "my calendar" but then i have only a snapshot from the internet calendar and any new events i doesnt see on the copy.


Is there a way to copy the internet calender with an flow - maybe every 30min? I have tried to create a flow - but i can only choise my own kalender, not the added internet calender in the outlook desktop app.


Is there a solution for my problem?

Community Support
Community Support

Hi @Anonymous ,


I have made some tests on my side, as you mentioned, adding the Internet calendar in doesn’t work, but it works when adding in Outlook client.


I have followed instruction suggested in this doc:


Further, when working with MS Flow, Internet calendars are not available. I am afraid that it is a feature that has not been supported yet.


I have seen a similar request on Flow Ideas Forum, please vote the idea at here:



Best regards,



Community Support Team _ Mabel Mao
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

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