Google Ads: How to Build Profitable Search Campaigns | Free Digital Marketing Course: From Beginner to Expert

What you'll learn

How the Google Ads auction and Quality Score work.
Which campaign type to choose and how to structure a Search campaign.
How to use keyword match types and negative keywords.
How to calculate your break-even CPA and turn it into a daily budget.
Which bidding strategy to use, and why conversion tracking comes first.

📥 Practice this lesson

Enter spend, impressions, clicks, conversions and revenue for each campaign: CTR, CPC, conversion rate, CPA, ROAS and profit after ads are calculated automatically.

digital-marketing-template.xlsx · Campaign Metrics sheet

Google Ads lets you appear on Google Search, YouTube, Gmail, Google Maps and millions of partner websites and apps. Its flagship format, the Search campaign, has a unique advantage: your ad shows up exactly when someone is looking for what you sell. You don't interrupt anyone; you answer a need at the right moment. And you pay only when someone clicks.

How the auction works

Every time someone searches, Google runs an instant auction among the advertisers targeting that search. The highest bidder doesn't automatically win: the order depends on Ad Rank, which combines your bid, the quality of your ad and landing page, the context of the search and the expected impact of your assets (sitelinks, phone number and so on).

Quality Score (1 to 10) summarizes three factors for each keyword:

Expected CTR: how likely people are to click your ad.
Ad relevance: how closely the ad matches the search.
Landing page experience: whether the page is useful, relevant and fast (lesson 7).

A strong Quality Score lets you rank higher while paying less per click. Good advertising isn't just money: it's relevance.

Campaign types

Type	Where it shows	Best for
Search	Google search results (and, increasingly, alongside AI Overviews)	Capturing existing demand: people already searching for your product or service
Performance Max	Across all Google channels, automated with AI	Online stores and businesses with solid conversion tracking and data
Shopping	Product listings with image and price	Online stores with a product feed in Google Merchant Center
Display	Banners on websites and apps	Remarketing and brand visibility
Video	YouTube	Building awareness, explaining products
Demand Gen	YouTube, Discover and Gmail with visual formats	Creating demand with images and video

If you're starting out, Search is the most controllable campaign type and the best way to learn how the platform works. In 2025 Google added AI Max for Search campaigns, an optional set of AI features that can match your ads to searches beyond your keyword list and tailor ad text and landing pages automatically. Like broad match, it works best once your conversion tracking is reliable.

Structure of a Search campaign

Campaign: Aurora Coffee · Search · Denver metro + U.S. shipping
  Daily budget, locations, language, bid strategy
  │
  ├── Ad group: Fresh roasted coffee
  │     Keywords: [fresh roasted coffee], "buy specialty coffee online"
  │     Ads about freshness → store landing page
  │
  ├── Ad group: French press coffee
  │     Keywords: "coffee for french press", [coarse ground coffee]
  │     Ads about grind → French press product page
  │
  └── Ad group: Coffee gifts
        Keywords: "coffee gift box", "gifts for coffee lovers"
        Ads about gift boxes → gift page

Each ad group gathers keywords on one theme, with ads that speak to that theme and point to the most specific page. That raises relevance, and with it your Quality Score.

Keywords: match types and negatives

Match type	How you write it	When it triggers	Example with "fresh roasted coffee"
Broad	fresh roasted coffee	Searches related to the meaning, even without the words	"local coffee roasters," "gourmet coffee beans"
Phrase	"fresh roasted coffee"	Searches that include the meaning of the phrase	"buy fresh roasted coffee online"
Exact	[fresh roasted coffee]	Searches with the same meaning	"freshly roasted coffee"

Broad match reaches more people, but it works well mainly with Smart Bidding and good conversion tracking; without them, it can spend on irrelevant searches. With a small budget, phrase and exact match give you more control.

Negative keywords stop your ads from showing on searches you don't want. For Aurora: "free," "jobs," "barista jobs," "recipe," "machine," "k-cups," "pods." Every week, check the search terms report: it shows what people actually typed before clicking, and it's your best source of new negatives.

1. Your ad for an "accounting course" is getting clicks from people searching "accountant jobs." What do you do?

Raise your bid.
Switch to broad match.
Add "jobs," "job" and "hiring" as negative keywords.

Negative keywords prevent you from paying for clicks from people looking for something else.

Ads that earn clicks

Responsive search ads let you write up to 15 headlines (30 characters each) and 4 descriptions (90 characters each). Google mixes and tests the combinations to find what works for each search.

Include the keyword in some headlines.
Combine benefit, proof and offer: "Roasted This Week," "2,000+ Happy Customers," "Free Shipping Over $60."
Write headlines that make sense in any order.
Add assets (formerly called extensions): sitelinks, callouts ("Easy Returns"), call, location and price assets. They take up more space and usually improve CTR.

How much can you pay? Your break-even CPA

Before you spend a dollar, calculate how much you can pay to win a sale without losing money:

$50Aurora's average order value

$25gross margin per order (50%): the break-even CPA on the first purchase

$75margin per customer per year, if they buy 3 times

With that, you can decide: accept a CPA near $25 if you count only the first purchase, or a bit more if you have reliable repeat-purchase data. Lesson 12 develops this with customer lifetime value.

From CPA to budget

Cost per sale = CPC ÷ conversion rate. If your average CPC is $1.10 and your landing page converts 5% of clicks, each order costs $1.10 ÷ 0.05 = $22, below the $25 break-even. With a $30 daily budget you'll get about 27 clicks and roughly 1.4 orders a day. Look how much the landing page matters at the same CPC:

Cost per sale at a $1.10 CPC, by conversion rate (scale: $0 to $60)

2% conv.$55

3% conv.$36.67

4% conv.$27.50

5% conv.$22

6% conv.$18.33

Below 5% conversion, Aurora pays more than its $25 break-even for each first order. The fix is usually the landing page, not the bid.

How Google spends your daily budget

Google may spend up to twice your average daily budget on a busy day, but over a month it won't charge more than 30.4 times your average daily budget. With a $30 daily budget, a single day can reach $60, and the monthly maximum is $912.

2. Your average CPC is $2.40 and your page converts 4% of clicks. What does each sale cost?

$60
$9.60
$96

You need 25 clicks per sale (1 ÷ 0.04), and 25 × $2.40 = $60. It's the same as $2.40 ÷ 0.04.

Bidding strategies

Strategy	What it optimizes	When to use it
Manual CPC	You set the maximum bid	Full control with small budgets, at the cost of more work
Maximize clicks	As many clicks as your budget allows	At the start, to gather traffic data
Maximize conversions	As many conversions as your budget allows	Once conversion tracking works
Target CPA	Conversions at an average cost you set	Once you have a history of conversions
Maximize conversion value / target ROAS	Revenue, not just the number of conversions	Online stores that send the value of each sale

No conversion tracking, no optimization

Smart Bidding learns from the conversions you record. If you don't track purchases or leads (with the Google tag or by importing key events from GA4, lesson 8), the system optimizes blind. Set it up and test it before you launch.

Your weekly optimization routine

Reviewed the search terms report: added negatives and new converting keywords.
Paused keywords with high spend and no conversions (after enough clicks to judge).
Checked which headlines and descriptions perform best and replaced the weakest.
Compared CPA and ROAS by ad group, device and time of day.
Worked on the landing page: CPA falls when conversion rises.

3. Which bidding strategy suits a new campaign that has no conversion tracking yet?

Target ROAS.
Target CPA.
No conversion-based strategy: set up tracking first, and use manual CPC or maximize clicks meanwhile.

Conversion-based strategies need conversion data to work. Without it, they have nothing to learn from.

4. Your campaign's average daily budget is $50. What's the most Google will charge you in a month?

$1,500
$1,520
$3,000

The monthly charging limit is 30.4 × your average daily budget: 30.4 × $50 = $1,520. Individual days can reach $100 (2×), but the month is capped.

Practice exercise: design your Search campaign

Calculate your break-even CPA from your average sale and margin.
Define two or three ad groups with five keywords each (phrase or exact).
Write a list of ten negative keywords.
Write six headlines (30 characters max) and two descriptions (90 max) for one ad group.

See solution: a dental practice in Phoenix, ad group "Clear aligners"

Keywords: "clear aligners phoenix", [invisible braces phoenix],
"clear aligners cost phoenix", [orthodontist phoenix],
"braces near me"
Negatives: free, jobs, salary, school, course, diy, cartoon, used

Headlines (character count):
  Clear Aligners in Phoenix (25)
  Free Smile Consultation (23)
  Braces and Clear Aligners (25)
  Monthly Payment Plans (21)
  15+ Years of Experience (23)
  Book Online in 2 Minutes (24)
Descriptions:
  Consultation with a digital scan and a written treatment plan
  included. Book today. (83)
  Metal braces, clear braces and clear aligners, with fixed monthly
  payment plans. (80)

Break-even: treatment $5,000 × 40% margin = $2,000 per patient.
If 1 in 4 consultations becomes a treatment, the practice can pay up
to $2,000 ÷ 4 = $500 per booked consultation without losing money
(and should aim well below that).

Summary

Google Ads runs an auction for every search; quality and relevance matter as much as your bid.
Search campaigns capture existing demand and are the best place to start.
Organize ad groups by theme, start with phrase and exact match, and add negatives every week.
Calculate your break-even CPA before investing: cost per sale = CPC ÷ conversion rate.
Set up conversion tracking before using Smart Bidding, and remember the 30.4× monthly budget cap.

Next lesson: Facebook, Instagram and TikTok Ads (Meta Ads and TikTok Ads). You'll move to social advertising, where you don't wait for people to search: you create the demand.