POST urls for multiple protected applications

[Cantor, Scott]

>    Sorry, I wasn't clear in my initial question. I put the wrong URLs. They're posting to
> https://site1.example.net/Shibboleth.sso/SAML2/POST  for both applications. Is that possible by specifying
> the application in some way, or do they need to use https://site2.example.net/Shibboleth.sso/SAML2/POST

The latter. There is no such thing as an "application" in SAML. There are SPs and IdPs, and SPs have an entityID and one or more ACS locations. They don't have applications, application URLs, or anything of that level of abstraction.

-- Scott