Forum Discussion
Add O365 Group calendar to "my calendars"
Define "main calendar"? They will appear in the left nav pane by default, though that depends on the version of Office you are using. More details here: https://techcommunity.microsoft.com/t5/Office-365-Groups/Group-Calendar-in-Outlook-2016/td-p/185125
This post from there worked, but i feel like group calendars should be added by default.
I managed to resolve my problem by adding the Group calendar as a Favorite.
In Outlook 2016, open calendar then click the 3 dots at the bottom and select 'Folders' view, now find the Group calendar you want to add, right click on it and select 'Add to Favorites'.
Open your Calendar in normal view and you should see the Group calendar listed under 'My Calendars'.
For some reason when it's added there it works.
Hope this helps.
