--- title: CartLineParentRelationship - Storefront API description: Represents the parent relationship of a cart line. api_version: 2025-10 api_name: storefront type: object api_type: graphql source_url: html: >- https://shopify.dev/docs/api/storefront/latest/objects/CartLineParentRelationship md: >- https://shopify.dev/docs/api/storefront/latest/objects/CartLineParentRelationship.md --- # Cart​Line​Parent​Relationship object Represents the parent relationship of a cart line. ## Fields * parent [Cart​Line!](https://shopify.dev/docs/api/storefront/latest/objects/CartLine) non-null The parent cart line. *** ## Map ### Fields with this object * {}[CartLine.parentRelationship](https://shopify.dev/docs/api/storefront/latest/objects/CartLine#field-CartLine.fields.parentRelationship)