With TeamSystem ID you can access multiple TeamSystem applications using just your email address and a password. That way you no longer have to remember a different set of credentials for each system you access. What's more, with TeamSystem ID there's no need to log out and log in again to switch between applications: you’re constantly connected. Want to use TeamSystem ID? Register, and only when you first sign into each individual TeamSystem application will you be asked to link the credentials you usually use in that system to your TeamSystem ID. Users of the @teamsystem.com domain already have a TeamSystem ID. Users belonging to a domain that uses its own provider for authentication do not have to register.