To enable shoppers to access SSO on your storefront, you must modify any widgets that handle login or registration. The necessary modifications depend on whether your storefront supports SSO exclusively or supports both SSO and standard logins:
If your storefront supports SSO exclusively, provide login and registration links that redirect the shopper to the identity provider.
If your storefront supports both standard logins and SSO, provide two sets of links, one set that directs the shopper to the standard login and registration and one set that directs the shopper to the identity provider.
By default, the Header Widget in Commerce Cloud includes a Login/Registration element with links to the standard login and registration. In addition, Commerce Cloud provides an SSO-specific SAML Login/Registration element. If your storefront supports SSO exclusively, you can replace the standard Login/Registration element with the SAML Login/Registration element. If your storefront supports both standard logins and SSO, you can include both login/registration elements in the widget. Note that the text and styling are identical in both elements, so if you do include both, you should modify one or both of them to make it clear which kind of login each supports.