Currently, the Fixed Calendar Schedule feature is only available for Pay-as-you-go plans. We would like to have this functionality extended to Prepaid Plans as well.

This would allow merchants to charge customers upfront while scheduling recurring deliveries/orders on fixed calendar dates without charging the customer again for each recurring fulfillment.

Example use case: A customer pays for a prepaid subscription upfront (e.g., a 6-month plan), and the merchant wants to deliver products monthly on specific fixed dates while keeping future orders at $0 since the payment has already been collected.

Adding Fixed Calendar Schedule support for Prepaid Plans would provide more flexibility for merchants offering prepaid subscriptions with scheduled recurring deliveries.