---
title: >-
  Metafields and metaobjects reserved prefixes now supported in theme app
  extensions - Shopify developer changelog
description: >-
  Shopify’s developer changelog documents all changes to Shopify’s platform.
  Find the latest news and learn about new platform opportunities.
source_url:
  html: >-
    https://shopify.dev/changelog/metafields-and-metaobjects-reserved-prefixes-now-supported-in-theme-app-extensions
  md: >-
    https://shopify.dev/changelog/metafields-and-metaobjects-reserved-prefixes-now-supported-in-theme-app-extensions.md
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  affectedApi: []
  primaryTag:
    displayName: Platform
    handle: platform
  secondaryTag:
    displayName: Update
    handle: update
  indicatesActionRequired: false
  createdAt: '2024-08-19T12:44:01-04:00'
  postedAt: '2024-08-19T12:41:00-04:00'
  updatedAt: '2024-08-19T12:48:41-04:00'
  effectiveAt: '2024-08-19T12:41:00-04:00'
---

August 19, 2024

Tags:

* Platform

# Metafields and metaobjects reserved prefixes now supported in theme app extensions

When accessing metafield namespaces or metaobject types, you no longer need to hard code `app--{app_id}`. The `$app` reserved prefix is now available to use in your Liquid files.

Learn more about using reserved prefixes in theme app extensions on [Shopify.dev developer docs](https://shopify.dev/docs/apps/build/online-store/theme-app-extensions/configuration#reserved-prefixes-for-metafields-and-metaobjects).