# Adding defaultPhoneNumber field to Customer — Shopify developer changelog --- ## Adding defaultPhoneNumber field to Customer As of GraphQL Admin API version **2025-04**, the `defaultPhoneNumber` field is introduced on the `Customer` object to support querying a customer's phone number and marketing state. Learn more about the `Customer` fields on [Shopify.dev](https://shopify.dev/docs/api/admin-graphql/2025-04/objects/Customer). *Published: March 11, 2025* Tags: API, New Link: https://shopify.dev/changelog/adding-defaultphonenumber-field-to-customer ---