---
title: Adding unique values to metafields - 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/adding-unique-values-to-metafields
  md: https://shopify.dev/changelog/adding-unique-values-to-metafields.md
---

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

December 11, 2024

Tags:

* Admin GraphQL API
* 2025-01

# Adding unique values to metafields

As of `2025-01` Admin API, you can now make metafield definitions that enforce uniqueness.

The new `uniqueValues` capability ensures that each metafield has a unique value across all resources. This is available for `single_line_text_field`, `number_integer`, `url`, and [`id`](https://shopify.dev/changelog/using-custom-ids-and-handles-in-product-and-customer-lookups). For now, this capability can only be set on metafield definitions that don’t yet have associated metafields.