Hey Thinkific Team -
I'm trying to figure out how to orchestrate a refer a friend experience inside your platform. So the use case:
It's true that there is no real automated way to achieve that at this point in time - interesting idea, though!
For now, you can certainly set existing users up as affiliates by going to their user profile and selecting the checkbox for "Affiliate". That said, affiliate commission is percentage-based rather than currency-based right now, so you'd need to choose a percentage that makes sense - e.g. 10%.
Then, any new sales that the user brings your way will be tracked for a commission. Usually what instructors do is pay the commission directly, e.g. via PayPal, but you could always give out coupon codes to the users instead!
If you have any further questions about that at all, then please let us know.