---
title: "App Events API: Send events from Checkout UI extensions"
description: Send custom events to Shopify from Checkout UI extensions with shopify.appEvents.emit().
api_version: 2026-10
source_url:
  html: https://shopify.dev/docs/api/app-events/latest/checkout-ui-extension-events
  md: https://shopify.dev/docs/api/app-events/latest/checkout-ui-extension-events.md
---

App Events API: Send events from Checkout UI extensions

Not supported in this version.