The first step we need to take is to get an Azure AD tenant. There are many ways to do this. You can start with an Azure subscription or use any other service from the Microsoft SaaS portfolio. The easiest way to get your solution to a working state is to start with an Office 365 trial subscription.

Open your browser and navigate to http://bit.ly/1RVpFXe. Subscribe to a free Office 365 Enterprise E5 plan:

Follow the registration process and define your user ID, such as [email protected]. We recommend using a nonpersonal ID, as shown in the next screenshot. Enter your new user ID and password. Your default directory will get the name you define behind the @:

Afterward, you need to prove your identity with a text message or a phone call and enter...