Best Affiliate Payment Platform for SaaS?

I just built my own from https://storycreatorapp.com :)

What I did to start off with was simply setting up a parameter to my landing page that was tied to the affiliate (?src=their_code). I would then set a cookie that I pass to the products signup process and remember that the signup came from "their_code". The affiliate code is basically just added to the customers database entry, but I would also track it to mixpanel.
My product has a 14 day free trial so I want to make sure affiliates would only receive payouts once their signups actually purchase the subscription. So I then just pull a monthly report of all signups that are actually subscribed to the paid product through a oneliner sql script. As I am getting more and more affiliates I will probably automate the script to automatically send out a report to me and the affiliate.

That is the whole process so far. This obviously does not scale but it is a great start if you don't want to spend money on a service or you are not sure how many affiliates you are going to close.

https://www.getrewardful.com/

Was very easy to integrate if you use stripe.

I recommend making sure you have the time, energy and demand for it.

You want to have 5-10 folks who are serious about doing it, or you want to start doing outreach (ideally with a list of names, email and websites before doing it)

You can check out firstpromoter.com

There are SaaS specific affiliate platforms. You can find a list on my website here.

Check out stripe - https://stripe.com/en-pl/saas