I would like to hear of any solutions out there as well. Any programs out there that we can just input in the code injection?
As of right now, the best way I can think about doing this would be to offer a unique discount code from the Squarespace commerce tools to each affiliate and then manually track all the sales that come in having used this code. This would require the affiliates to trust you to add up the sales that come in with their code honestly, and would also make for a bit of work on your end.
Not nearly as good as using cookies and an actual affiliate tracking program, but its s