--- title: MetafieldDefinitionConstraintValueUpdateInput - GraphQL Admin description: |- The inputs fields for modifying a metafield definition's constraint subtype values. Exactly one option is required. api_version: 2025-10 api_name: admin type: input-object api_type: graphql source_url: html: https://shopify.dev/docs/api/admin-graphql/latest/input-objects/metafielddefinitionconstraintvalueupdateinput md: https://shopify.dev/docs/api/admin-graphql/latest/input-objects/metafielddefinitionconstraintvalueupdateinput.md --- # Metafield​Definition​Constraint​Value​Update​Input input\_object The inputs fields for modifying a metafield definition's constraint subtype values. Exactly one option is required. ## Fields * create [String](https://shopify.dev/docs/api/admin-graphql/latest/scalars/String) The constraint subtype value to create. * delete [String](https://shopify.dev/docs/api/admin-graphql/latest/scalars/String) The constraint subtype value to delete. *** ## Input objects using this input * [Metafield​Definition​Constraints​Updates​Input.values](https://shopify.dev/docs/api/admin-graphql/latest/input-objects/MetafieldDefinitionConstraintsUpdatesInput#fields-values) INPUT OBJECT The input fields required to update metafield definition [constraints](https://shopify.dev/apps/build/custom-data/metafields/conditional-metafield-definitions). Each constraint applies a metafield definition to a subtype of a resource. *** ## Map ### Input objects using this input * [Metafield​Definition​Constraints​Updates​Input.values](https://shopify.dev/docs/api/admin-graphql/latest/input-objects/MetafieldDefinitionConstraintsUpdatesInput#fields-values)