After hours of research through all of the various rewards program apps, my team decided that it would be best to create our own rewards program. It's almost done, which is great! But we're facing a challenge—we'd love to integrate this rewards program with an OTS referrals app, but to do so means that we need to have some sort of ability to get a "hook" that can give our system the information it needs to know that the referral was successful and that a customer made a purchase. We're thinking that this could be in the form of a referral count, but we're also able to custom-code whatever hooks we might need to. Are there any apps that you guys know of that could allow us to create a custom hook that could trigger a point value being given to our customers?