The third eBook in the Paid Growth and Campaigns category. It assumes you've read Paid Ads for Small Businesses and decided that a discovery-led channel fits your business better than search. From here it goes deep on the specifics of Facebook and Instagram ads for a small budget: audiences, creative, offers, retargeting and the monthly review that keeps spend honest.
Members ebook·7 chapters· 35 minute read
Chapter 1
How Facebook and Instagram Ads Work
A plain-language model of what these platforms actually do with your money, what they're optimising for and why a small business has to fight some of the defaults.
Facebook and Instagram are the same advertising system in two different shop windows. You set up a campaign once, choose where it shows, and the platform decides moment by moment which person to put each ad in front of, based on who's likely to do the thing you've asked it to optimise for. The platform takes a small fee for each view and a slightly larger fee for each click, depending on how busy the auction is for that audience at that moment.
What makes a small business win or lose in this system isn't the budget alone. It's how clearly you've told the platform what counts as a good outcome. If you optimise for views, you'll get views from people who like watching videos. If you optimise for clicks, you'll get clicks from people who like clicking. If you optimise for purchases or leads, you'll get those, but only if the platform has enough examples of what a real one looks like, which is where small budgets often struggle.
This chapter is the basic mental model. Once you understand what the platform is doing with each pound and what its defaults are quietly optimising for, the rest of the eBook will make much more sense.
The full chapter walks through the auction in plain language, the three things the platform is really optimising for, where its defaults work against a small business and the account structure to put in place before you build a single campaign.
The auction in plain language
Every time someone opens Facebook or Instagram, the platform decides which posts and ads to show them, in what order. For ads, this is an auction. The platform looks at every advertiser whose targeting includes that person, calculates how much each is willing to pay, multiplies that by how likely the person is to do the action you asked for, and shows the highest-scoring ads first. The auction happens many times a second, across billions of people.
Two things follow from this. First, your bid alone doesn't decide whether your ad shows. A more relevant ad with a smaller budget can beat a less relevant ad with a bigger one. Second, the platform learns. The first few hundred pounds of any campaign go partly toward finding the people most likely to take your action, which is why short tests rarely show what a campaign is really capable of.
What the platform is really optimising for
The platform optimises for the action you tell it to optimise for, but only within the limits of what makes the platform money. Three forces are in tension. The platform wants users to keep scrolling, so it dislikes ads that get hidden or reported. It wants advertisers to keep spending, so it serves your budget steadily even when results are poor. It wants its own revenue to grow, so it nudges you toward formats and audiences that are more expensive and harder to attribute. None of this is a conspiracy. It's the shape of a free service paid for by ads. A small business has to know it and plan around it.
The practical version: choose the most specific objective that matches the action you actually want. If you want enquiries, optimise for leads or for landing-page views and a form fill, not for engagement. If you want sales, optimise for purchases. If you optimise for the wrong thing, you'll get exactly what you asked for, and it won't help your business.
Where the defaults work against you
Three defaults reliably hurt small business accounts. Advantage Plus audience expansion, which quietly broadens your targeting whenever the platform thinks it can spend more. Automatic placements that shove your spend into placements your creative was never built for. Detailed targeting that mixes interests and behaviours into combinations no real person fits cleanly. Each of these is on by default, each of them sounds helpful, and each of them costs a small business roughly fifteen to thirty per cent of its monthly spend in our audits.
Defaults to switch off on a small budget
Advantage detailed targeting expansion - off, until you have a proven campaign
Automatic placements - off, choose Feed and Stories on Facebook and Instagram only
Optimise budget across ad sets - off on small budgets, set ad-set budgets manually
Auto-applied recommendations - off, decide each change yourself
Account structure for a small business
Keep it small. One Business Manager account. One ad account inside it. One Pixel installed on your website. Two campaigns running at most at any time - one for new audiences, one for retargeting. Two or three ad sets per campaign, each testing a different angle. Two ads per ad set. That's enough to learn from, and small enough to keep tidy on your own. Owners who run six campaigns and twenty ad sets at three hundred pounds a month are spreading their data so thin that nothing ever becomes statistically real.
What to do this week
Open Business Manager. If you don't have one, set it up and link your Facebook page, Instagram account and ad account inside it. Install the Pixel on your website using the Meta Pixel Helper extension to confirm it fires on every page. Switch off the four defaults in the callout above on any existing campaigns. Don't launch anything new yet. The next chapter is about audiences, and a clear audience strategy is what you build campaigns on - not the other way round.
Recurring principle: prove demand before spending heavily. The platform mechanics matter, but they only amplify what you put in. The earlier eBook Paid Ads for Small Businesses sets that ground; the next chapter starts using it.
The rest of this chapter walks through the practical steps, the templates and the checklists you need to put it into action. It includes worked examples, copy frameworks and the small decisions that make the difference between a plan that sits in a drive and one that gets used.
Inside you'll find a step-by-step playbook, a downloadable template, a checklist you can run this week and a short list of common mistakes to avoid before you start.
The full action plan, broken into weekly steps.
Ready-to-use scripts, templates and checklists.
Worked examples for different sized businesses.
Common mistakes and how to avoid them.
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