You will be able to explain how conversion tracking feeds the platform's predictions and your own reporting.
Priya ran her first Google campaign for a month with no tracking. The report showed clicks, impressions and a cost, and that was all. Trial class bookings did arrive that month, but she could not tell which came from the ads, which came from her Google Maps listing and which came from a parent who had heard about her at the void deck. She was paying for something she could not see.
The platform was in the same position, and that hurt her more than the gap in her report. It could not see which clicks became bookings either, so it had no way to find more people like the ones who booked. This lesson explains how tracking closes that gap for both of you.
A pixel or tag is a small piece of code on your website that tells an ad platform when a visitor does something you care about. When someone clicks an ad and lands on your site, the code notes the visit. When that person later fills in a form or completes a purchase, the code sends a message back to the platform: this action happened, from this visit.
The platform can then connect the action to the ad, and often to the ad set and keyword or audience behind it. That is how a report goes from showing clicks to showing bookings, sales and the cost of each.
Each big platform has its own version. Meta has the Meta Pixel, Google has the Google tag, and TikTok has the TikTok Pixel. They do the same job, each for its own platform. If you advertise on two platforms, you usually install two codes, and each one only reports to its own owner.
You rarely need to write this code yourself. Most website builders and online shop platforms offer a way to connect each ad platform, and lesson 3.4, Install and test your tracking, walks through it.
Go back to lesson 1.1, The highest bid does not always win. Meta's auction uses an estimated action rate, a prediction of how likely each person is to take the action you chose. Google's automated bidding and TikTok's delivery rely on similar predictions. Those predictions come from data. The platform looks at the people who took your action in the past and looks for others who behave like them.
Without conversion data, the platform cannot see who took the action. It falls back on what it can see, which is usually clicks. So it optimises for people who click, which brings you back to Farah's problem from lesson 2.1, The objective tells the platform what to find. You get traffic instead of customers, not because you chose the wrong objective, but because the platform had nothing better to aim at.
With good conversion data, the system improves as it runs. Each new booking or sale is another example of the kind of person who acts. Over time, delivery shifts towards people who look like your real customers. This is one reason the same campaign can get cheaper per result over its first weeks, and why broken tracking quietly makes everything more expensive.
Tracking also tells you what is working. With conversions recorded, you can compare ad sets, keywords and ads by cost per booking or cost per sale rather than by clicks. Without it you are guessing, and the guesses tend to favour whatever gets the most clicks.
Platform numbers will not match your own records exactly, for reasons covered later in the course. They are still far better than nothing, and they are what the platform uses to make its own decisions.
An event is one kind of action the code records, such as a page view, an add to cart, a form submitted or a purchase. Platforms offer a list of standard events with fixed names, such as Purchase and Lead on Meta, and let you create your own.
Track the actions that matter to your business, not everything that can be counted. For Farah's online shop, the key event is a purchase, sent with the order value so the platform can tell a S$45 blouse from a S$180 outfit, to use example prices. For Priya, it is a trial class booking submitted through her website form. For a business that books appointments online, it might be a completed booking.
Then pick one as your main conversion. That is the event your campaigns will optimise for. Other events are still worth recording. An add to cart or a visit to the pricing page can help you diagnose where people drop off, and can be used to build retargeting audiences in module four. But only one should be the target the platform aims at in a given campaign.
Where you can attach a value, do. A purchase value lets the platform favour bigger orders and lets you measure return on ad spend. A lead without a value still works, and lesson 8.1, Start from what a customer is worth, shows how to estimate what one is worth.
Look at your own site with this in mind. In the activity below you will list the three actions that matter most and choose which one is your main conversion.
List the three actions on your site that matter most and decide which one is your main conversion.
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