[jedberg]

I think a lot of that comes from the fact that O365 are more corporate users. And oftentimes they are restricted from connecting their calendar to 3rd parties due to corporate policy.

[grvdrm]

Indeed, I've tried and failed many times to connect my corporate O365 to calendaring/scheduling/task mgmt. apps.

It is a major roadblock for many of us stuck to that product.

[sfavaro]

Yes, this is also part of the reasons why we started with the Google platform and not Office365.