Prior to pixel, marketing analysts could only look into the amount of clicks that your business was garnering. Unfortunately, this data leaves a lot of room for imagination. With pixel, on the other hand, a marketing professional can analyze your conversions to learn about purchases, sign-ups, and more, in order to better tailor your marketing strategy.
Additionally, pixel has the potential to save your business money. Because Facebook will collect data on what type of users buy from your site and what type of purchases they make, Facebook can target their advertising to apply just the right amount of pressure to extend their purchase budget by the right amount. In other words, the advertisements are able to be deliberately targeted at customers who will spend higher amounts, for example, and you can advertise your products accordingly.
Finally, pixel will track metrics like your cost per lead, so as to allow you to target deliberate audiences on any budget.