When a RH-SSO new user with Email Verified attribute disabled authenticate into Admin Portal, it get the message that the account isn't active or approved yet. If he tries to authenticate again, it gets a code incorrect or expired.
Workaround:
- Enable the Email Verified attribute for the user in RH-SSO
- login into Admin Portal using RH-SSO (Authenticate through <> Red Hat Single Sign-On) for the first time (the URL must be "https://<ADMIN_PORTAL_URL>/p/sessions/new")