> For clean Markdown of any page, append .md to the page URL. > For a complete documentation index, see https://zuora.ferndocs.com/docs/platform/security-and-identity/oneid-identity-and-access-management/oneid-settings/two-factor-authentication-for-zuora-oneid/set-up-two-factor-authentication-as-a-user/llms.txt. > For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://zuora.ferndocs.com/_mcp/server. # Set Up Two-Factor Authentication as a User > Learn how to set up two-factor authentication using SMS or an authentication application, and understand when re-authentication is required. Learn how to set up two-factor authentication using SMS or an authentication application, and understand when re-authentication is required. Users have the option of receiving the authentication code in two ways: * SMS authentication * Authentication application The following cases require re-authentication: * Logging in to Zuora One ID after the **Remember me for 30 days** period has expired. * Logging in from another machine or browser where the **Remember me for 30 days** option has not been enabled. > Learn how to set up two-factor authentication using SMS or an authentication application, and understand when re-authentication is required. ## Docs - [Set up SMS authentication in OneID](https://zuora.ferndocs.com/docs/platform/security-and-identity/oneid-identity-and-access-management/oneid-settings/two-factor-authentication-for-zuora-oneid/set-up-two-factor-authentication-as-a-user/sms-authentication.md): Learn how to set up SMS authentication in the Zuora OneID application by following these steps. - [Authentication application setup](https://zuora.ferndocs.com/docs/platform/security-and-identity/oneid-identity-and-access-management/oneid-settings/two-factor-authentication-for-zuora-oneid/set-up-two-factor-authentication-as-a-user/authentication-application-setup.md): Set up two-factor authentication (2FA) using a mobile app in the Zuora OneID application.