When you enable the artifact binding as one of the allowable bindings on the Allowable SAML Bindings tab, you must provide an artifact resolution service (ARS) endpoint.
The ARS endpoint is the location where PingFederate sends back-channel requests to resolve artifacts received from the identity provider (IdP).
SAML 2.0 connections allow multiple ARS endpoints. For SAML 1.x connections, you can only enter one ARS endpoint.
You can reconfigure any ARS endpoint or the source ID value for SAML 1.x if you are editing an existing connection.