I'd like for users of my app to be able to sign in with their Office 365 accounts.
This will allow me to take advantage of some features like OneDrive for Business and shared calendars.
Is this possible at all? Or will I have to add each and every Active Directory for all of my customers who want to use Office 365 as their sign-in method? If so, then this seems like a very manual process, is it possible to automate this?