Thanks for the message.
Per coupon/affiliate commission rates is possible in the PRO version. See here for details: https://couponaffiliates.com/docs/custom-commission-per-affiliate-coupon/
By default, the affiliate system recognises the order/referrals when the affiliates coupon code is used. The referral URLs will automatically apply the coupon code when clicked.
It is however possible to enable an option to track referrals via the links, even when the coupon code was not applied. Learn more here: https://couponaffiliates.com/docs/tracking-conversions-via-referral-url-without-coupons/
If you have any further questions regarding PRO features, you will need to contact us via our website, as we can only provide free version support on these forums. Contact form: https://couponaffiliates.com/contact-form/
Thanks!