After you've started sharing affiliate links, you can go here to view earnings reports: https://beta.jamkazam.com/affiliate/earnings. Or you can click on Earnings under the Affiliate header in the left nav bar (see arrow in screenshot below).
On this page, you can see the number of premium subscriptions and JamTracks purchased each month, and the affiliate earnings this has generated.
Please keep in mind that earnings will lag signups by a significant time margin. New JamKazam users get their first 30 days of online play free with a complimentary gold level subscription plan and get their first JamTrack free as well. Users don't start upgrading from the free play level to the premium levels until some time after their 30-day free trial expires, and it also typically takes some time for new users to start purchasing additional JamTracks.
On top of this, when you share affiliate links, those tend to work over time as well. So what we typically see with affiliate partners is a slow growth starting curve, where links generate signups over time, growing the total number of affiliate-tagged accounts. And on top of this, the purchases/earnings also grow over time layering up as more users convert into subscriptions. As a result, affiliates must be patient and allow the power of time to work for them. On the plus side, this builds significant, sustained, and growing/recurring revenue stream rather than a smaller one-shot win. It's better business, but does require patience at the beginning to let it hit its stride.