Assertion Consumer Service (ACS) should specify Service Provider ACS location URL. For new authentication service instances, this field is auto-populated with the out-of-the-box ACS REST service URL. Can be manually edited.The URL generated ACS location use the hostname and port of the PRPC URL you are connected to at the time you have created the AuthService. Below is the sample.
Thanks Supraja, Yes, as you have said, this URL is pre-populated with the rest endpoint based on the server i am connected to. This URL is also editable.
My question is, When SAML is used with IAC, Should this be a gateway URL? In other words, When idp returns the assertion using a browser redirect, can it directly use the load balanced application server URL or should it go through IAC gateway?