MS365 integration with group calendars

Configuration
1

I’m using the MS365 Calendar integration to fetch my calendars. It works fine for the calendars in my personal account - I’ve configured all the stuff relating to Entra ID.
I also want to add a group calendar. I’ve created an M365 Group in my MS Family account and added the relevant family members.
Now, I want to get the ID of the group to be able to add it to HA using the method described in the documentation for the integration. But i cannot get this ID.

Has anybody done this for personal accounts? Or isn’t it possible?

Thanks

2

Must be an Entra ID on the same tenant as the ID being used for access. Then appropriate delegate permission must be applied to the mailbox.

3

Thanks for the reply.
I’ve configured all the relevant permissions in Entra (e.g. Group.Read.All, Group.ReadWrite.All - don’t remember the exact naming…) and re-consented. I’ve removed the integration in HA and re-added.
So, what’s left is the Entra ID / ID of the Group - how to find it?