---
title: MetafieldDefinitionInput - GraphQL Admin
description: The input fields required to create a metafield definition.
api_version: 2026-01
api_name: admin
type: input-object
api_type: graphql
source_url:
  html: >-
    https://shopify.dev/docs/api/admin-graphql/latest/input-objects/MetafieldDefinitionInput
  md: >-
    https://shopify.dev/docs/api/admin-graphql/latest/input-objects/MetafieldDefinitionInput.md
---

# Metafield​Definition​Input

input\_object

The input fields required to create a metafield definition.

## Fields

* access
* capabilities
* constraints
* description
* key
* name
* namespace
* ownerType
* pin
* type
* validations
* useAsCollectionCondition: deprecated

***

## Map

No referencing types