--- title: OrderEditAddCustomItemPayload - GraphQL Admin description: Return type for `orderEditAddCustomItem` mutation. api_version: 2025-10 api_name: admin type: payload api_type: graphql source_url: html: https://shopify.dev/docs/api/admin-graphql/latest/payloads/ordereditaddcustomitempayload md: https://shopify.dev/docs/api/admin-graphql/latest/payloads/ordereditaddcustomitempayload.md --- # Order​Edit​Add​Custom​Item​Payload payload Return type for `orderEditAddCustomItem` mutation. ## Fields * calculated​Line​Item [Calculated​Line​Item](https://shopify.dev/docs/api/admin-graphql/latest/objects/CalculatedLineItem) The custom line item that will be added to the order based on the current edits. * calculated​Order [Calculated​Order](https://shopify.dev/docs/api/admin-graphql/latest/objects/CalculatedOrder) An order with the edits applied but not saved. * order​Edit​Session [Order​Edit​Session](https://shopify.dev/docs/api/admin-graphql/latest/objects/OrderEditSession) The order edit session with the edits applied but not saved. * user​Errors [\[User​Error!\]!](https://shopify.dev/docs/api/admin-graphql/latest/objects/UserError) non-null The list of errors that occurred from executing the mutation. *** ## Mutations with this payload * [order​Edit​Add​Custom​Item](https://shopify.dev/docs/api/admin-graphql/latest/mutations/orderEditAddCustomItem) mutation Adds a custom line item to an existing order. For example, you could add a gift wrapping service as a [custom line item](https://shopify.dev/apps/fulfillment/order-management-apps/order-editing#add-a-custom-line-item). To learn how to edit existing orders, refer to [Edit an existing order with Admin API](https://shopify.dev/apps/fulfillment/order-management-apps/order-editing). *** ## Map ### Mutations with this payload * [order​Edit​Add​Custom​Item](https://shopify.dev/docs/api/admin-graphql/latest/types/orderEditAddCustomItem)