Hi,
You'll find the options of the affiliate system in the HikaShop configuration:
www.hikashop.com/support/documentation/5...l#features_affiliate
There, configure the "Percentage fee on sales".
Then, activate the "affiliate account active" setting in the user, like in your screenshot.
Finally, you can create a coupon with the code you want, the percentage you want to offer to the customer, and select the user in the affiliate partner setting of the coupon.
That way, when a user uses the code of that coupon for a purchase, the corresponding user will be credited of the affiliation fee automatically.
The email address field there is available if you want to pay out the affiliation fees via PayPal to another email address than his main email address. You can leave it empty for now.