Module 1: How Ads Actually Work

The ad auction in plain English

Every time someone opens Instagram or types a search into Google, a tiny auction happens in a fraction of a second. You are not buying a fixed slot. You are bidding for a chance to be shown, competing against every other advertiser who wants that same person's attention at that same moment. If you understand this one mechanic, every setting in Ads Manager starts to make sense.

Here is what decides who wins. First, your bid — the most you are willing to pay for the result you want. Second, the quality of your ad — platforms measure this through things like expected click-through rate and how people respond to your creative. Third, the platform's estimate of whether this particular person will actually take the action you want. The winner is the advertiser with the best combination of all three, not the one with the biggest wallet. A sharp ad from a small business can and does beat a lazy ad from a big brand.

Meta vs Google — which fits your business

Meta (Facebook and Instagram) and Google sell attention in fundamentally different ways, and picking the wrong one is the most common beginner mistake. Meta is interruption. People are scrolling for entertainment, not shopping. Your ad has to earn a glance, then make someone want something they weren't thinking about five seconds ago. Google Search is the opposite: intent. Someone typed "roof repair austin" — they have a problem right now and money to fix it. Your ad just has to be the best answer in front of them.

So which fits you? If customers actively search for what you sell — plumbers, lawyers, roofers, dentists, pest control, local repair shops — start with Google Search ads. If customers don't know you exist yet or buy on impulse and visuals — clothing, fitness programs, bakeries, custom gifts, restaurants, local events — start with Meta. If you sell to other businesses with a long sales cycle, either can work, but Meta is usually cheaper for getting the first conversation started. Google's Display Network and YouTube behave more like Meta (interruption), while Google Search and Maps are pure intent.

Pick one platform to start. Running $10 a day on Meta and $10 a day on Google usually means both campaigns starve — neither gets enough data to learn anything. Start with $15 to $20 a day on the one platform that matches how your customers buy, run it for at least two weeks, and only then consider adding the second. One more honest note: the "right" platform also depends on where you can make good creative. If you will never film a video, Meta's video-heavy placements will punish you, and Google Search (which is mostly text) may be the kinder starting point.

Setting a budget you can afford

Now the useful math. Work backward from the value of a customer. Say you run a cleaning service where one new recurring customer is worth roughly $1,200 a year. If you can afford to spend $120 to acquire that customer and still be happy, your target cost per lead might be $30 (assuming one in four leads becomes a customer). That ratio — what you earn versus what you pay to acquire — is the number that decides whether ads are working. Write yours down before you launch. Without it, you'll either panic at normal costs or celebrate vanity numbers that don't pay bills.