APM SAML - Whats the best way to have multiple IDPs using one VIP

I may have steered you a little wrong in your other thread. The "IdP-initiated without webtop" piece didn't fully sink in. 😉

In any case, that isn't a "supported" configuration, but there is a workaround. With your working IdP-initiated config (resource assignment, SAML resource, webtop), add the following iRule to your IdP VIP:

when ACCESS_POLICY_COMPLETED priority 30 {
    ACCESS::respond 302 Location "/saml/idp/res?id=/Common/saml_resource"
}

where "/Common/saml_resource" is the name of your SAML resource object. It's basically the same thing as actually clicking the link.