Publisher can define their trusted and non-trusted apps and also define the allowable hosts for redirect URLs.
Publisher get a dedicated <publishername>.login.saasmatter.com site where users will authenticate.
Identity site will allow users to switch between sign in and sign up. In case of sign up, site will verify email address and phone number.
Allow users to authenticate using external identity providers like Google and Microsoft.
Define what factors of authentication you would like your users to have.
Your tenants can manage their users in customer portal.
Get full view of user sessions and devices.
Enriched API for your apps.