--- title: ProductIdentifierInput - GraphQL Admin description: The input fields for identifying a product. api_version: unstable api_name: admin source_url: html: >- https://shopify.dev/docs/api/admin-graphql/unstable/input-objects/ProductIdentifierInput md: >- https://shopify.dev/docs/api/admin-graphql/unstable/input-objects/ProductIdentifierInput.md --- # Product​Identifier​Input input\_object The input fields for identifying a product. ## Fields * custom​Id [Unique​Metafield​Value​Input](https://shopify.dev/docs/api/admin-graphql/unstable/input-objects/UniqueMetafieldValueInput) The [custom ID](https://shopify.dev/docs/apps/build/custom-data/metafields/working-with-custom-ids) of the product. * handle [String](https://shopify.dev/docs/api/admin-graphql/unstable/scalars/String) The handle of the product. * id [ID](https://shopify.dev/docs/api/admin-graphql/unstable/scalars/ID) The ID of the product. *** ## Map No referencing types