I am very new to Shopify app development. I have a potential client wanting to build an app that essentially acts as an up-sale item for other retailers. In other words, this client has a product that sits on top of other products (think of an extended warranty for a physical product). I am wondering how payments would be handled in this case. I assume this would be a challenge when it came time to checkout due to the fact that part of the payment would go to the manufacturer and another part of the payment would go to my client who is wanting this app. Is this possible in Shopify apps? I apologize if this question is trivial. I am brand new to the world of Shopify development.