I am trying to set up SSO for multiple instances using MyDomain.  One of the sandbox is working for us with SSO, however, when trying to configure the other sandboxes, using the sepearte mydomain URL as the EntityID, there is no SAML post response.  The Identity provider certificate is would be the same across all four sandboxes? Correct or no? The request signing certificate would be generated from certificate and key managment from that particular Sandbox.  What am I doing wrong?  Using SAML tracker, for some reason it is not posting to the issuer.  Any suggestion, please???

Single Sign-On for customer portal requires that "portal_id" be specified in SAML assertion. How do you implement SSO for multiple portals then? I have 2 portals (and sites). How can I make users access either of the portals via SSO?

 

Thanks much.