Team site classification

I've believe it's being rolled out, or already is rolled out. 

Here's the documentation: https://azure.microsoft.com/en-us/documentation/articles/active-directory-accessmanagement-groups-settings-cmdlets/

I've tried to set it up 2 weeks ago, but failed to do so, possibly because I don't a usage guidelines URL.

Basically you had to connect to Azure through a "public preview version" (older versions don't understand the commands) Powershell, then create some template of sorts and add your custom classifications of sorts.

There currently is no GUI to do it, and also there no default classifications to choose from, as they are just simple labels that do nothing by themselves. You'd still have to configure some other policies that react to these labels I think.

I hope Microsoft will improve the creation soon.