Microsoft Graph API gives you the ability to interact with the continually evolving Azure services through a single endpoint: https://graph.microsoft.com. We are going to connect to Graph with Powershell, OAuth 2.0 and REST. Registering your App To interact with Graph we need to register our app. Go to https://apps.dev.microsoft.com/portal/register-app to get started. Login with your account that is associated with your tenant….