When you join our Partner program, we issue a unique promo code for you. You can promote the code itself or special refferal links to our website. The user is interested to use your promo code or link, because it gives him extra $15 bonus.
In case of refferal link, first, the code is stored in users' browser "forever" (not in a cookie, we use localstorage instead). When the user decides to sign up, the code is automatically transferred to the Upp web app with user registration flow (https://app.upp.app). Once the user is registered, the code is immediately stored in Upp database, so it can never be lost. When the user makes a payment, the code is always here and your commision gets debited to your Partner account.
Of course, there remains the situation when the user started exploring Upp on the website with a browser, but ended up installing it from the Google Play on his phone. In this case, we hope, he will apply the promo code on his own, being motivated to get $15 bonus