---
title: New validation against duplicate variant IDs in productSet mutation input - 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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  html: https://shopify.dev/changelog/new-validation-against-duplicate-variant-ids-in-productset-mutation-input
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---

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

July 1, 2024

Tags:

* Admin GraphQL API
* 2024-07

# New validation against duplicate variant IDs in productSet mutation input

As of the **2024-07** version of the Admin GraphQL API, the `id` field in the [ProductVariantSetInput](https://shopify.dev/docs/api/admin-graphql/latest/input-objects/ProductVariantSetInput) will have validation to prevent duplicate values.

This enhancement ensures that there are no collisions when updating variants.

Learn more about [productSet](https://shopify.dev/docs/api/admin-graphql/2024-07/mutations/productSet) on [Shopify.dev](https://shopify.dev/).