It's not specified if the Younity supports SAML or not. I have checked the Support center and all the available topics including the description of the application. However, I believe this is a feature that belongs to the Security category, and developers didn't include it to avoid any issues.
To obtain additional information about it, use the following link and open a ticket, and a developer or someone from the team will provide all the details you need: http://support.getyounity.com/support/home
