How to force choosing commission by product ID
If you want to generate commissions only for the certain products of your site, it is possible. You can force the generating commission only for defined products with specifying product ID's in the campaign. The sale with product ID not defined in any campaign will not be saved.
NOTE: Do not use the same product id in more campaigns, because in this case the system would not assign the sale to the default campaign, which would result in not saving the transaction or saving it to the random cam...