You can now configure the New Universal Login Experience to use an identifier-first flow, which supports Home Realm Discovery for enterprise connections. This configuration can be done in the Universal Login section of the Auth0 Dashboard:
When enabled, users will be able to authenticate as follows:
You can learn more in our public documentation.
Why are we doing this?
Home Realm Discovery is useful for B2B scenarios when you want users from each B2B organization to login with their corporate credentials.
This feature was supported in the Classic Universal Login experience and now will be supported in the New Universal Login experience.