--- title: SubscriptionInterval - Customer API description: Defines valid subscription intervals. api_version: 2025-01 api_name: customer type: enum api_type: graphql source_url: html: https://shopify.dev/docs/api/customer/2025-01/enums/SubscriptionInterval md: https://shopify.dev/docs/api/customer/2025-01/enums/SubscriptionInterval.md --- # Subscription​Interval enum Defines valid subscription intervals. ## Valid values * DAY Represents a day interval. * MONTH Represents a month interval. * WEEK Represents a week interval. * YEAR Represents a year interval. *** ## Fields * [Subscription​Billing​Policy.​interval](https://shopify.dev/docs/api/customer/2025-01/objects/SubscriptionBillingPolicy#field-interval) OBJECT The billing policy of a subscription. * [Subscription​Delivery​Policy.​interval](https://shopify.dev/docs/api/customer/2025-01/objects/SubscriptionDeliveryPolicy#field-interval) OBJECT The delivery policy of a subscription. *** ## Map ### Fields with this enum * <-|[Subscription​Billing​Policy.interval](https://shopify.dev/docs/api/customer/2025-01/objects/SubscriptionBillingPolicy#field-interval) * <-|[Subscription​Delivery​Policy.interval](https://shopify.dev/docs/api/customer/2025-01/objects/SubscriptionDeliveryPolicy#field-interval)