How is it possible to omit steps in the Digital Customer Service using azure login process?

We implemented a Digital Customer Services (DCS) template that uses authentication through Azure. using a policy in the SSO, the user has to enter their email address and password to connect.

We are running an integrated test that starts in the customer's web portal and ends in the DCS. To begin with, the user logs into the web portal, where a section of the home page has been enabled that contains the URL of the DCS. Our expectation is that this should happen without requiring any additional login processes.

However, while running these tests, we noticed some unexpected behaviour. When the user arrives at the DCS portal, they are directed to the DCS home page, but are not automatically authenticated. Therefore, the user has to perform an additional action, which is to click on the login button and provide their email address in order to achieve authentication.