You don't need to enter any custom code for Tracking Page. TrackMates will create it for you. Trackmates creates a tracking page for your customer in your store. When your customer receives the tracking notification and status mail for her/his order from TrackMates, They will also receive a tracking link along with it. When they click the link to view the tracking status, They will land to your store's tracking page which is created by TrackMates. There they will see the tracking details of his/her order.