Multi-factor authentication is required starting February 1, 2022. Keep working with tab-focused dialogs. Improve the performance of assistive technology. Get Ready for the Multi-Factor Authentication Requirement. Starting February 1, 2022, customers are contractually required to use multi-factor authentication (MFA) when accessing Salesforce products. To satisfy this requirement, you can turn on MFA directly in Salesforce or you can use your single sign-on (SSO) provider’s MFA service. Salesforce MFA is available at no extra cost.