Why use complex third-party affiliate platforms or plugins when you can run your own affiliate program from WooCommerce itself? Especially when it’s super easy, jargon-free and comes with all the powerful features…
Powerful affiliate program with full control and accuracy

Allow people to sign up as your affiliates. Approve them and set them up to receive commissions. Let them create referral links. Track visitors, conversions, commissions, and payouts. It’s all there!
Turn customers and subscribers into affiliate partners and brand ambassadors.
Track affiliate progress and adjustments: commissions are adjusted based on order status changes and recurring subscription payments.
The most powerful commission plan system – set commissions based on a number of conditions.
Combine media assets, swipes and other resources in different promotional campaigns. Track performance of each campaign separately.
Easy payouts via PayPal, referral tracking using coupons and many other features.
Integrate with your own site — Affiliate for WooCommerce works as a WooCommerce extension, so your costs and setup time are reduced.

https://woocommerce.com/products/affiliate-for-woocommerce/