Tracking a campaign means keeping records of how many orders came in, and sorting those orders according to different variables. Collecting this information allows you to see which of the variables made a difference by leading to more responses, and which ones didn’t make any difference at all.
Not only does tracking allow you to see which variables led to more responses, but you can see which ones led to better quality responses. For example, one mailing list might produce more responses, but another mailing list may generate new customers with greater lifetime value.
