I've been putting down a plugin in order to get the Office 365 user information. That is, the name and e-mail of the Office 365 user that has Office software deployed in each computer.
This is my first OCS plugin, so it might be a little clumsy.
You can check the details under https://github.com/estrelow/ocs-office365-16-user
I needed this in order to locate a given user with its hardware, or to relate a given hardware with a face.
Note that the latest version of msofficekey.vbs plugin generally DOES WORK with Office 365 installations. Office-365-16-user yields complementary data.