---
title: Updated Built for Shopify requirement for fulfillment services callback response rate - 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/requirement-update-fulfillment-services-respond-to-callback-requests
  md: https://shopify.dev/changelog/requirement-update-fulfillment-services-respond-to-callback-requests.md
---

[Back to Developer changelog](https://shopify.dev/changelog)

December 11, 2024

Tags:

* Built for Shopify

# Updated Built for Shopify requirement for fulfillment services callback response rate

Built for Shopify requirements about [responding to callback requests](https://shopify.dev/docs/apps/launch/built-for-shopify/requirements#respond-to-callback-requests) for fulfillment services apps are changing. The threshold for responding to Shopify [callback requests](https://shopify.dev/docs/api/admin-graphql/latest/objects/FulfillmentService) in the previous 28-day window is changing from 99% to 100%. The updated requirement comes into effect in July 2025.