After logging into your Trellian DSN account, go to the ROI Tracking tab and click to enable ROI Tracking.
When ROI tracking is enabled, an extra “sid” parameter will be passed in your redirect URL.
To report a conversion to our ROI tracking server, all you need to do is add a tracking pixel to the webpage associated with a successful conversion. To set this up, simply follow the instructions in the ROI Tracking section after logging in.