As of GraphQL Admin API version 2022-04, a new
originTime field has been added to
subscriptionBillingAttempt. Fulfilment intervals for subscriptions are normally calculated using the billing attempt date, but may be overridden with this new field if the billing happens to occur after the current anchor date. This can be done to prevent fulfilment from being pushed to the next anchor date when billing is delayed.
Visit our documentation on Creating a Billing Attempt and Advanced Delivey Behaviours for Subscriptions to learn more about this new field.