Create product metafield

documented

Create a metafield on a product.

POST /admin/api/2026-01/products/{product_id}/metafields.jsonProductsno implementation yet0 runs

Input

shop_domain

Shop domain (store subdomain)

your-store

product_id

Product ID

123456789

namespace

Metafield namespace

inventory

key

Metafield key

warehouse

value

Metafield value

type

Metafield type

single_line_text_field

Calls Shopify as you (your API key is your account); keychains.dev holds the credentials.