---
title: ExtensionTargets
description: "

  A [target](/docs/apps/app-extensions/configuration#targets) represents where your checkout UI extension will appear.


  You register for [targets](/docs/api/checkout-ui-extensions/extension-targets-overview) in your [configuration file](/docs/api/checkout-ui-extensions/configuration), and you include a JavaScript function that will run at that location in checkout.


  The API for each extension target is passed as an argument to your function. While all targets inherit the [`StandardApi`](/docs/api/checkout-ui-extensions/apis/standardapi), not all of them share the same properties and methods.


  For example, the [`purchase.checkout.cart-line-item.render-after`](#typesofextensiontargets-propertydetail-purchasecheckoutcartlineitemrenderafter) target has access to the [`CheckoutApi`](/docs/api/checkout-ui-extensions/apis/checkoutapi) to modify a checkout, but the [`purchase.thank-you.cart-line-item.render-after`](#typesofextensiontargets-propertydetail-purchasethankyoucartlineitemrenderafter) target does not.

  \  "
api_version: 2025-10
api_name: checkout-ui-extensions
source_url:
  html: https://shopify.dev/docs/api/checkout-ui-extensions/latest/apis/extensiontargets
  md: https://shopify.dev/docs/api/checkout-ui-extensions/latest/apis/extensiontargets.md
---

Extension​Targets

Not supported in this version.