You must register the Azure app with Azure Active Directory (AD).
Important
You can perform the registration manually, as described in this topic, or you can use the configuration helper tool, which is available in the custom configuration option of the Command Center, and which automates the registration process.
Disclaimer: This procedure is performed using the Azure Active Directory web application. The Azure AD application is subject to change without notice. Consult Microsoft documentation, such as Azure Active Directory Documentation.