Error "You cannot use a custom login page with Identifier First" when Selecting Identifier First

Last Updated: Dec 3, 2024

Overview

On the Authentication profile page, the following warning is shown when trying to select Identifier First:

You cannot use a custom login page with Identifier First

Applies To

  • Identifier First
  • Authentication page

Solution

This message indicates that the Customize Login Page (found under the Advanced options) is enabled. When enabled, the login page uses the classic experience instead (despite the new one being selected) and allows full HTML customization. This ignores the Authentication profile selected since the custom page now determines the behavior.

To use the new experience with only the standard customization options (vs. an entirely customized page), turn off the option by going to:

  1. Navigate to Branding > Universal login.
  2. Then click on Advanced options > Login tab.
  3. Turn off the Customize Login Page toggle.

    Once it is turned off, it is then possible to use Identifier First, as the new universal login page is now in use rather than the fully customized page.