---
title: New validation against duplicate handles in productCreate, productUpdate, and productSet mutation inputs - 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.
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[Back to Developer changelog](https://shopify.dev/changelog)

January 1, 2025

Tags:

* Action Required
* Admin GraphQL API
* 2025-01

# New validation against duplicate handles in productCreate, productUpdate, and productSet mutation inputs

As of the `2025-01` version of the Admin GraphQL API, the `handle` field in [productInput](https://shopify.dev/docs/api/admin-graphql/latest/input-objects/ProductInput) for [productCreate](https://shopify.dev/docs/api/admin-graphql/latest/mutations/productCreate) and [productUpdate](https://shopify.dev/docs/api/admin-graphql/latest/mutations/productUpdate), as well as in [productSetInput](https://shopify.dev/docs/api/admin-graphql/latest/input-objects/ProductSetInput) for [productSet](https://shopify.dev/docs/api/admin-graphql/latest/mutations/productSet) will be validated for uniqueness. This means that you will no longer be able to input a duplicate handle. This change does not affect existing behaviour when `handle` is not provided as input.

This enhancement ensures that there are no collisions when creating or updating product handles.