As a general rule, it is sufficient to include the Digistore promocode on your sales page so that Digistore24 can correctly attribute affiliates.If you use your own JavaScript (e.g. if you create a buy button via JavaScript) for forwarding buyers to the order form, then you need this function:digistoreAppendAffiliateToUrl(string url) : stringTransfer the checkout URL as a parameter. The function adds the affiliate as a GET parameter to the checkout URL so that it can be captured on the Digistore order form.Example:TestThis is how you check if the affiliate is correctly assigned:Look at the order form. The current affiliate is displayed in the bottom right-hand corner:If the name of the affiliate you entered on the sales page is there, the assignment is working correctly.If it says [ none ], the purchase will be made without an affiliate.See alsoPromocodeAffiliate attribution