How is the subscription system managed?

In search of a system managing subscriptions via paybox, I discovered with pleasure your solution.
Nevertheless, I would have liked to know how the subscription system was managed, how all this works with woocommerce subscription and paybox. Someone subscribes, pays their first month of subscription, ok. But what happens the following month? A new order is created automatically? How does the system record credit card info? what happens if the account doesn’t have the necessary funds?

The answer will be quite simple, it is the native behaviors of each of the solutions that will apply:    

• WooCommerce Subscription will create a 'parent' order and then 'sub-orders' for each monthly payment.
• Paybox stores information on its own server, critical information (CB number) is only stored on your site.
• Woocommerce remains "passive", when a payment is refused on the Paybox side, the subscription stops

In short, our extension allows "just" to make the 2 solutions work together, without altering their initial functioning.