We've successfully set up SimpleSaml with Okta using the information and help from @swilliams and this thread https://community.apigee.com/articles/30051/sso-integration-with-developer-portal-and-okta.html
As it stands right now, the SSO works if the user is already in Drupal. If the user isn't in Drupal, it doesn't seem to create the user during the login process.
We do have the "Register Users" option checked as Sean alluded to in the other thread.
Any ideas? Has anyone else run across this problem?
@Andrew Krowczyk Here are my configuration settings:
The installation directory text box is cutoff (.../simple), but it is actually .../simplesamlphp.