APM Cookbook: AutoLaunch SAML Resources
Introduction
After the SAML labs at Agility I got a lot of questions about how to automatically launch SAML resources and skip the webtop, and I promised I'd write it up for you. If you haven't be...
Published Aug 10, 2016
Version 1.0
OK, then you'll need to deploy the webtop and resources since you'll bind to multiple SPs. Fortunately when you use SP initiated auth as you described (user starts by going directly to the SP and it redirects), they won't see the webtop at the IdP anyway, it just automatically sends them back to the SP after auth. They only see the webtop if they start by going to the IdP. This article shows how to make the user not see the webtop even if they go directly to the IdP, which might be useful, but probably not in your circumstance.
Good luck!