# MetafieldDefinitionConstraints - admin-graphql - OBJECT Version: 2025-01 ## Description The constraints that determine what subtypes of resources a metafield definition applies to. ### Access Scopes ## Fields * [key](/docs/api/admin-graphql/2025-01/scalars/String): String - The category of resource subtypes that the definition applies to. ## Connections * [values](/docs/api/admin-graphql/2025-01/connections/MetafieldDefinitionConstraintValueConnection): MetafieldDefinitionConstraintValueConnection! ## Related queries ## Related mutations ## Related Unions ## Examples