SSO Not Working with SAML

Knowledge Articles
1

Overview

There are two applications in Auth0, and both have the SAML addon enabled.
If the user is going to application A, authenticates, and then navigates to application B and triggers authentication, it gets redirected to/u/login for authentication. The session is not picked-up.

Cause

The applications are enabled for different database connections.
For SSO to work, both applications must be enabled for the same connection.

Solution

Enable the SAML-addon applications for the same database connection.

  1. Go to Dashboard > Applications.
  2. Click on the Connections tab.
  3. Enable the same database connection for the SAML-addon applications.