Been working with a 3rd party IDP on establishing SSO for my on premise environment with SAML, I'm at the point now where they are needing to know what the ACS or SAML endpoint URL would be...this would actually process the SAML assertion they send back.
Looking through documentation all i can see is that other 3rd party IDPs are only configuring the response to go back to the root site collection for the web application. Am i correct in my thought that if i provide them the URL of my root site collection say "https://example.company.com" that SharePoint will process the SAML assertion? Or is there some other URL i need to be passing that will handle the assertion?