Duo currently protects services that utilize CSUCI's single-sign-on (SSO) system, such as CI Records, and CI Learn. If you are not presented with a Duo two-factor-authentication (2FA) login request, then that service does not require Duo to log in.
Submit a service request with the ITS Helpdesk for assistance with Duo Mobile.
Contact Information Security at infosec@csuci.edu.