The single sign-on (SSO) service endpoint is where PingFederate sends requests when SSO is initiated at your site according to partner requirements. It applies to all SAML versions when the service provider (SP)-initiated SSO profile is enabled.
For SAML 2.0 connections, associate bindings to the endpoints where your identity provider (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 might 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.