If you have the advanced version of Advanced Authentication, it enables Single Sign-on. You must configure Advanced Authentication for Single Sign-on to function. Configure the minimum following items once in the Advanced Authentication service to be able to configure and use Single Sign-on:
Repository: Configure one or more repositories. The repositories must contain the user account information to provide a single sign-on experience for these users.
Methods: Configure one or more authentication methods for the user accounts.
Chains: (Conditional) Advanced Authentication allows the users to have more than one authentication method. Create one or more chains if the service you want to provide single sign-on access to requires multiple authentication methods.
NOTE:Step-up authentication occurs when you have multiple chains configured. If a user does not meet the requirements defined in the chain, Single Sign-on prompts the user to provide more information from the additional chains to complete the authentication.