Single Sign On (SSO) is a process that permits a user to access multiple services after going through user authentication (i.e. logging in) only once. This involves authentication into all services the user has given permission to, after logging into a primary service. Among other benefits, SSO avoids the monotonous task of confirming identity over and over again through passwords or other authentication systems.
If you are interested in setting up SSO for your organization, please contact Support.