**Important Notice** : Hi! To help keep your services secure, we’ve introduced Multi-Factor Authentication (MFA). To ensure the security of the service all CMI user accounts not enabled for MFA, as of the 01/04/2026, have now been removed from the platform. If access to the Optus CMI platform is still required, a new user account will need to be created either via another existing CMI User on your account, or by contacting the Optus Enterprise & Business Service Centre on 134 315 (or your dedicated 1300 number).