--- title: SubscriptionMonthDayAnchor - Customer API description: Represents an anchor specifying a day of the month. api_version: 2025-10 api_name: customer type: object api_type: graphql source_url: html: https://shopify.dev/docs/api/customer/latest/objects/subscriptionmonthdayanchor md: https://shopify.dev/docs/api/customer/latest/objects/subscriptionmonthdayanchor.md --- # Subscription​Month​Day​Anchor object Represents an anchor specifying a day of the month. ## Fields * day​Of​Month [Int!](https://shopify.dev/docs/api/customer/latest/scalars/Int) non-null Day of the month (1-31). *** ## Map ### Possible type in * [Subscription​Anchor](https://shopify.dev/docs/api/customer/latest/unions/SubscriptionAnchor)