How do you add the Affiliate Code to the Coupon-Code? Or how do you assign a coupon code that is unique to that specific affiliate?

You will need to use the affiliate code added to the coupon code.

what if you have more then 1 affiliate on that plan? How does cs cart know who to give the commision to?

Hello, smithdp1!

Yes, CS-Cart can work in the mentioned way using the coupon commissions.

First of all, you should set up a coupon in your CS-Cart:

http://kb2.cs-cart.com/creating-coupon

Then you will need to add a commission for using the coupon to the affiliate plan and provide your affiliates with the coupon code value. Then if someone adds this coupon code at Checkout, then after the order is Processed or Completed, the commission will be added to the affiliate account.

Hi, is it possible to assign a coupon code to an affiliate so when a person users that coupon code to make a purchase, the affiliate gets credit for the sale?

Thank you.