Facebook Ads are paid placements you buy through Meta’s advertising platform to put your business in front of people on Facebook, Instagram, Messenger, and Meta’s network of partner apps and sites. Unlike a Facebook post you publish for free, an ad is entered into an automated auction that decides who sees it, how often, and at what price, based on your budget, your targeting, and how relevant Meta’s algorithm predicts the ad will be to the person seeing it.
We’ve been running Facebook Ads for clients at Salterra Digital Services since 2011, back when “boosting a post” was still a novelty and campaign structure was an afterthought. The platform has changed dramatically since then — the biggest shift being how much control has moved from the advertiser to Meta’s own machine learning. Understanding what Facebook Ads actually are, structurally and mechanically, is the foundation everything else in this silo builds on.
The Meta Advertising Ecosystem
“Facebook Ads” is really shorthand for Meta Ads. When you build a campaign in Ads Manager, your ad can serve across several placements: the Facebook feed and Stories, Instagram feed, Reels, and Stories, Messenger inbox and sponsored messages, and the Audience Network, which shows Meta ads inside third-party apps. You choose these placements manually or let Meta’s Advantage+ placements system decide automatically, which is now the default recommendation in most campaign setups.
All of this is managed through Meta Business Suite (formerly Business Manager), which is the umbrella account that houses your ad accounts, Pages, pixel, Instagram profiles, and any team members or partner agencies you grant access to. If you’re new to advertising on the platform, setting up Business Suite correctly before you touch Ads Manager will save you from painful account-restructuring headaches later.
How the Ad Auction Actually Works
Every time Facebook or Instagram loads a feed, an auction runs among all the ads eligible to show to that person in that moment. Meta doesn’t simply award the impression to the highest bidder. It calculates a Total Value score from three inputs: your bid, your ad’s estimated action rate (how likely that specific person is to engage or convert), and ad quality (based on feedback like hides, reports, and post-click experience). The ad with the highest total value wins the impression, not the deepest pockets.
This is why two advertisers with identical budgets can get wildly different results. An advertiser with a highly relevant, well-targeted, well-made ad can out-compete a bigger spender with a generic one. Practically, this means your job as an advertiser isn’t just to set a budget — it’s to feed the auction an ad worth showing.
Campaign Structure: Campaign, Ad Set, Ad
Every Facebook Ads account is built on a three-tier hierarchy, and getting this structure right is the single most common thing new advertisers get wrong.
- Campaign — sets your objective (for example, Sales, Leads, Traffic, or Awareness) and, increasingly, your budget if you use Campaign Budget Optimization (CBO), now called Advantage Campaign Budget.
- Ad Set — controls your audience, placements, budget (if not set at the campaign level), schedule, and optimization event (what action Meta should try to get more of).
- Ad — the actual creative: image, video, or carousel, plus your headline, primary text, and call-to-action button.
A campaign can hold multiple ad sets, and each ad set can hold multiple ads. The mistake we see constantly with newer advertisers is fragmenting a small budget across too many ad sets and ads, which starves each one of the volume Meta’s algorithm needs to learn who converts. As a rule of thumb, fewer ad sets with more budget behind them almost always outperform many thin ad sets.
The Main Ad Objectives
Meta has consolidated its campaign objectives into a simplified set, but they still map to the classic marketing funnel:
- Awareness — maximize reach and brand recall, priced on impressions.
- Traffic — send people to a website, app, or Messenger thread.
- Engagement — grow post interactions, Page likes, or event responses.
- Leads — collect contact information, either via a Meta-native lead form or an off-platform landing page.
- App Promotion — drive installs and in-app events.
- Sales — drive purchases or other high-value conversions, typically tracked via the Meta Pixel and Conversions API.
Choosing the objective closest to your actual business goal matters because Meta optimizes delivery toward whichever action you tell it to chase. Picking “Traffic” when you actually want purchases will get you cheap clicks from people unlikely to buy, because Meta is doing exactly what you asked.
Ad Formats You'll Actually Use
Format performance shifts with platform trends, but a few formats have proven durable:
- Single image — still effective for retargeting and simple offers; fast and cheap to produce.
- Single video — the format Meta’s algorithm currently favors most, especially short vertical video for Reels placements.
- Carousel — multiple cards in one ad, strong for product catalogs or step-by-step storytelling.
- Collection — a mobile storefront experience that opens into a full-screen catalog, common in ecommerce.
- Advantage+ catalog ads — dynamically pull products from your catalog to match each viewer, standard for retargeting shoppers who viewed specific items.
Targeting: Where the Platform Has Changed Most
Early Facebook Ads were famous for granular interest and demographic targeting — you could layer age, income, job title, and page-like interests into a tightly defined audience. Privacy changes, particularly Apple’s App Tracking Transparency rollout, degraded a lot of that signal. In response, Meta pushed advertisers toward broader, algorithm-led targeting: Advantage+ audiences, which let Meta find buyers with minimal manual restriction, based on what your pixel and creative are telling it.
In practice, most well-run accounts today combine three audience types: broad or Advantage+ audiences for cold prospecting, custom audiences built from your customer list, website visitors, or engagement, and lookalike (now called “Advantage lookalike”) audiences modeled on your best existing customers. Interest targeting hasn’t disappeared, but it’s a smaller lever than it was a decade ago.
Budgeting and Bidding Basics
You can set budgets at the campaign level (Advantage Campaign Budget) or the ad set level, and choose daily or lifetime spend. Bidding, by default, runs on “highest volume,” which spends your full budget to get as many optimization events as possible. More experienced advertisers layer in a cost cap or bid cap once they know their target cost per result, which tells Meta to hold the line on efficiency even if it means spending less.
New ad sets go through a “learning phase” — roughly the first 50 optimization events — during which delivery is unstable and costs fluctuate as the algorithm gathers data. Editing a live ad set (changing budget by more than 20%, swapping creative, adjusting targeting) resets this learning phase, which is why constant tinkering is one of the fastest ways to sabotage results.
Who Should Actually Run Facebook Ads
Facebook Ads work best for businesses that can absorb the platform’s role as an interruption-based, discovery channel rather than an intent-capture channel like Google Ads. That includes ecommerce brands, local service businesses with a clear offer, course creators and coaches, and B2B companies running lead generation with a real sales process behind it. Businesses with no clear offer, no tracking in place, or an unwillingness to test creative regularly tend to burn budget without learning why.
Frequently Asked Questions
How much do Facebook Ads cost?
There's no fixed price — cost is set by the auction and varies by industry, audience, objective, and creative quality. Businesses can start testing with a modest daily budget and scale spend once they see a positive return, rather than committing to a large budget on day one.
Do I need a Facebook Page to run ads?
Yes. Every ad account needs a connected Facebook Page, even if your ads only run on Instagram, because the Page is the entity the ad is attributed to and where comments and engagement live.
What's the difference between boosting a post and running ads in Ads Manager?
Boosting a post is a simplified, limited version of advertising with fewer objective and targeting options. Ads Manager gives full control over campaign structure, optimization events, placements, and bidding, and is the tool serious advertisers should use.
Is the Meta Pixel still necessary?
Yes, alongside the Conversions API. The pixel tracks browser-side events on your website, while the Conversions API sends the same events server-side, creating redundancy that improves tracking accuracy in a privacy-restricted environment.
How long before Facebook Ads start working?
Give a new campaign at least three to seven days, or roughly 50 optimization events per ad set, before judging performance. That's the learning phase the algorithm needs to find your best-converting audience.
Can Facebook Ads work without a big budget?
Yes, but the budget needs to be concentrated rather than spread thin. A single well-targeted ad set with a modest daily budget will outperform five ad sets each starved of spend and unable to exit the learning phase.
Terry has 30+ years in software and SEO. He’s the founder of Salterra Digital Services and SEO Spring Training, host of the Roundtable SEO Mastermind, and lead instructor at SEO University — teaching the exact tactics his team uses on client work.
Continue learning
Ready to master this?
This guide is one lesson from the Facebook Ads with GoHighLevel course. Get every lesson, framework and checklist — plus the full 38-course catalog — inside SEO University.
Practitioner-focused training across the full digital marketing stack — from technical SEO to conversion optimization and the AI search era. By Salterra Digital Services, since 2011.