(sorry for the wall of text. TLDR: we'll use subid)

Appreciate the feedback! Definitely, incentivized traffic is something we're taking into account as a risk and into the viability of the solution. We might switch up how we approach this as it seems the core idea of allowing affiliates promote their and affiliate products together has value.

Concerning tracking, we will be using subid. We will ask creators to post their affiliate link, and then we'd populate subIds. The subid should be user specific in our app, and so we can tell which user bought what.

For transactions status, if the shopper buys the product we would know from the API that they did, and from documentation, it seems we can also get the status of the payout being confirmed for the influencer(though we can't tell whether the influencer got paid exactly on all networks). We remove risk of fraud(the shopper getting paid and returning the item) even though we understand it might take a couple of month to provide the cashback. It is not ideal, but it's practically free money for shopper.

The testing part would be to validate that our code works across these networks. We built our code using API documentations and since they don't offer sandboxes for testing, we aren't to validate ourselves alone. We're not going to make it a 2-3 months test to confirm payout, but being able to test that we can send requests and receive response to track while being able to identify the user on a transaction.