Surface a deployed Multi-Framework app inside Lightning Experience pages or Experience Cloud site pages as a microfrontend. With Salesforce Microfrontend, Salesforce hosts your app in a secure, sandboxed iframe and gives it a channel to communicate with the surrounding page.
Where: This change applies to Lightning Experience in Enterprise, Performance, Unlimited, Developer, and Partner Developer editions hosted on Hyperforce.
When: This change is available starting in September 2026.
Why: Embedding supports internal, employee-facing (B2E) apps that are served from the salesforce.app domain and built with React or Angular.
How: Write a thin Lightning web component that renders the
lightning-ui-embedding base component and points its src
attribute at your deployed app's URL. Then add that component to a Lightning page or an
Experience Cloud site page.