Basic requirements for SSO
Azure Active Directory
To be able to configure and use the documented SSO example, you need Microsoft Entra ID (may be subject to a charge). It can be accessed directly via Microsoft Azure or is part of many Microsoft Online Services.
Users with email addresses
In your Microsoft Entra ID, you need at least one user who is to be used to access signoSign/Universal.
Every user who is to access signoSign/Universal must have an email address stored in the user’s “Contact information.” This email address is interpreted by signoSign/Universal as a user name and is used, for example, for sending notifications.
It is not possible to use signoSign/Universal without a registered email address.