--- title: MetafieldIdentifier - Customer API description: Identifies a metafield by its owner resource, namespace, and key. api_version: 2025-01 api_name: customer type: object api_type: graphql source_url: html: https://shopify.dev/docs/api/customer/2025-01/objects/MetafieldIdentifier md: https://shopify.dev/docs/api/customer/2025-01/objects/MetafieldIdentifier.md --- # Metafield​Identifier object Identifies a metafield by its owner resource, namespace, and key. ## Fields * key [String!](https://shopify.dev/docs/api/customer/2025-01/scalars/String) non-null The key of the metafield. * namespace [String!](https://shopify.dev/docs/api/customer/2025-01/scalars/String) non-null The namespace of the metafield. * owner​Id [ID!](https://shopify.dev/docs/api/customer/2025-01/scalars/ID) non-null GID of the owner resource that the metafield belongs to. *** ## Map No referencing types *** ## Mutations * [metafields​Delete](https://shopify.dev/docs/api/customer/2025-01/mutations/metafieldsDelete) mutation Deletes multiple metafields in bulk. *** ## <\~> MetafieldIdentifier Mutations ### Mutated by * <\~>[metafields​Delete](https://shopify.dev/docs/api/customer/2025-01/mutations/metafieldsDelete)