I’m having trouble creating personal unique links on wix that calculate comissions for those that generate sales
Have you explored the Wix Referral Program app? - Wix Referral Program: Adding and Setting Up Your Referral Program | Help Center | Wix.com
It should get you most of the way there, in terms of unique links. In return for completed orders, you can give rewards like Loyalty points of Coupon.
I guess when you mention commissions, you’re looking for something that is variable according to the price of the item purchased?