I've worked with Google Calendar entries but not Office 365. You'll I suspect need to get familiar with the API and use the HTTPCaller to compose your requests to 'get' back meetings or 'post' new entries. One thing to be aware of as a possible gotcha is that from experience Office 365 and Office 365 Business are subtly different beasts and depending on which you're referring to you may have to interact with the service in a different way.

maybe a simpler way is to just share the calendar with google and do the updates that way. I'm gonna give that a try and see how it goes.

thanks

looks like there's only view permissions given outside the organization, so I'm back to working with the o365 api.

If I remember right, there was a team at the FME UC Hackathon that developed an "app" with FME that could book rooms. I forget who did it, but one of these people did.

Coming back to this today. Thought I'd let you all know that I was able to get authentication working and start poking around. For some reason I couldn't get the authentication to work under our Company's specific Azure app registration. So I registered under the /common/ endpoint and all is well. Thanks for your advice @1spatialdave, when I was willing to be thorough with the docs it certainly helped. Turns out to be a bit more complicated than google.