OK, all three products claim they integrate with each other, but I cannot find specifics on how to pass information between them.
Our site will include an affiliate program that pays out to the affiliate, AND gives special pricing to the customers that are referred. Cart66 sends the sales data down to WP Affiliate perfect on completed sales, so I know they are communicating fine.
First, I want to pull the WP Affiliate reference into the sale - I could then add a hidden field in the Gravity Forms form that basically says "if affiliate referral -$100"
Second, I want to pull sales data from Cart66 into another Gravity Form - Have a survey they can only complete once by pulling the user name, password, and item purchased. By having this fed into Gravity Forms I could give them a link to the form without letting them complete it multiple times.