To strengthen security, Salesforce requires you to route your domain URLs through Salesforce Edge Network.
Where: This change applies to Lightning Experience and Salesforce Classic in Essentials, Professional, Enterprise, Performance, Unlimited, and Developer editions.
When: Salesforce enforces this change in phases beginning July 11, 2026. Sandbox orgs are enabled at least 2 weeks before production orgs.
How: To turn on Salesforce Edge Network, from Setup, in the Quick Find box, enter My Domain, and then select My Domain. Under Routing and Policies, turn on Use Salesforce Edge Network. See Route My Domain Through Salesforce Edge Network. After enablement, a 7-day rollback window is available.