IdP-Initiated login is not enabled for connection error when SP-Initiated flow configured

[ctauxe]

I am having this problem as well.

There’s an older thread here which I think may be the same issue: False IdP-Initiated login when Testing SAML Connection with Custom Domain

Unfortunately, it looks like its a bug for Auth0, but not a high-priority fix.

Edit: Found another thread about this issue:

SAML SSO using Auth0 as service and identity provider login fails due to IdP initiated login

Problem statement We have been running with Auth0 acting as a SAML service provider in production for a few months with no issues. The IdP is Okta, and the Auth0 connection is called “okta-saml” in our tenant. Users log in through the web application and are redirected to Okta by Auth0. We never perform “IdP initiated login” and thus have disabled this option. We are now integrating with a partner application using SAML, and we want to use Auth0 as our IdP. Our SAML integration with this partn…