Hi, I am trying to setup SAML Authentication via Admin Console in App

Does your IDP metadata file contain multiple <EntityDescriptor> tags? This has been seen to cause similar issues in the past. If so, can you test with only using one?

I have used the IDP metadata which contain only one <EntityDescriptor> tag. And it is giving me the same above error. Any suggestions on this.

It seems that either the response is missing or incomplete. Can you do a trace of the SAML request using either Fiddler or the SAML Tracer Addon for Firefox

Hi Tom,
When I tried to implement IDP initiated SSO, it is working fine. But the problem is that whenever I hit the url like "https://example.com/suite" in browser, it is redirecting me to IDP side everytime and login into APPIAN by validating the Username, instead it should open APPIAN login page, where I provided the link for "Login with SSO". To bypass SAML configuration we need to type "example.com/.../loginPage.none"
It was working fine till 7.10 in which after implementing SSO whenever we tried to access the url it is redirecting to APPIAN login page.
Is this a bug or the functionality in Appian 7.11 saml authentication?

If I understand the behavior correctly, this is expected unless you already have an active session with your IDP/SSO.

It is expected only when we already have active session. I tried on different systems and cleared the browser cache as well but it is redirecting everytime on the IDP side. For the first time it should always open APPIAN login page which is not happening now.