What is Append Data on Redirect?
Append Data on Redirect modifies the Redirect URL (or if you have multiple redirects enabled, the value for HTML=) to contain the CA and PA values from the Affiliate Linking Code.
When this URL is be clicked with the Append Data on Redirect feature enabled you will be taken to
Without the Append Data on Redirect feature you would just be taken to http://sitenamehere.com
This feature allows you to redirect to a specific script on your site and collect those values for additional tracking or metric purposes.