---
title: Overlay
description: Render a floating chat widget over the Thank you page for post-purchase support or engagement.
api_version: 2026-04
source_url:
  html: https://shopify.dev/docs/api/checkout-ui-extensions/latest/targets/thank-you/overlay
  md: https://shopify.dev/docs/api/checkout-ui-extensions/latest/targets/thank-you/overlay.md
---

Overlay

Not supported in this version.