The SSO service endpoint is a location to which PingFederate to send authentication requests when SSO is initiated at your site, according to partner requirements. It is applicable to all SAML versions when the SP-initiated SSO profile is enabled.
For SAML 2.0 connections, you associate bindings to the endpoints where your IdP partner wants PingFederate to send authentication requests when SSO is initiated at your site.
For SAML 1.x, only one endpoint is allowed, and the binding selection is not required.
Some federation use cases may require additional customizations in the authentication requests sent from the PingFederate SP server to the IdP, such as including the optional Extensions element in the authentication requests. You can use OGNL expressions to fulfill these use cases.