Paystack is not an add-on - it is the payment rail underneath the entire platform. Funding your Campaign Wallet, paying out affiliate commissions, and splitting a direct sale between you and your affiliate all run through Paystack automatically, no matter where the checkout itself initiates from.
Wallet top-ups
Fund your Campaign Wallet directly via Paystack - the same top-up that triggers Commission's platform fee.
Affiliate payouts
Commissions are paid out to affiliates' bank accounts via Paystack, automatically, once earned.
Split checkout for direct sales
A sale-goal campaign's checkout initiates from your own site (see Custom integration), not a Commission-hosted page - but the payment itself still splits automatically between you and the affiliate in the same Paystack transaction.