Hi, I want to monetise my app and integrate a payment method. My app is an Educational App which has different authors who create content and sell their courses through our app. Authors can create courses/channels to which users can subscribe. The courses can be purchased one time or on a monthly subscription basis. (Currently, all the courses are free) Since Apple doesn't allow the use of third-party payments, I only have the option of integrating Apple In-App Purchase. As hundreds of channels/courses are already there in the system and it's growing continuously, I don't know how to implement the In-App purchases in this case. If I am not wrong, Apple In-App Purchase requires to create In-App Purchase products(consumable and non-consumable) first from the App Store Connect and I am afraid that it isn't feasible to manage such a large quantity of products because Authors can add any number of courses and it's up to them to decide the courses' prices and whether it's a one-time payment or subscription-based courses. Please guide me to solve this problem or suggest a correct approach. Thank you.