Understand storefront SSO message flow

SAML 2.0 supports a variety of different message flows for authentication and authorization.

This section applies to both OSF and Storefront Classic. This section applies to Open Storefront Framework (OSF) and Storefront Classic.

The following diagram illustrates the approach used by Commerce. It shows the flow of messages when a shopper logs into a Commerce storefront using storefront SSO. Note that in SAML terminology, Commerce is referred to as the service provider, while the external system that provides authentication is called the identity provider:

SSO flow