Measure first: conversion tracking you can trust
Before a race, you make sure the stopwatch works. If the stopwatch is broken, you can't tell who won. In ads, conversion tracking is the stopwatch. If it is wrong, every decision after it is wrong too.
- Before this course: Social Media Marketing (course 3.2) and Paid Ads Basics (course 3.6). Course 3.6 taught UTM links; this lesson adds conversion tracking.
- A conversion is a valuable action someone takes after seeing or clicking your ad: a purchase, a booking, a form sign-up. Google Ads measures actions people take on your website after they interact with your ads.
- In Google Ads, every conversion action is set as Primary (used for bidding) or Secondary (observation only). Google says setting this correctly is critical: wrong settings can stop automated bidding from optimising well.
- Google Ads setup options: a URL-based setup is quickest for page loads; a code-based setup is needed for button clicks, dynamic values such as purchase amounts, or transaction IDs.
- Importing from Google Analytics needs Admin access in Google Ads and Edit access in the linked Analytics property; only key events are eligible, and imports can take 24 to 48 hours to appear.
- Avoid double tagging (for example a website plugin plus a manual tag), because it can count the same result twice.
- Meta: the Conversions API sends events (website, app, offline, business messaging) from your server, website platform or CRM to Meta. If you already have a Meta Pixel, Meta says you can set up the Conversions API for website events in one click from Events Manager. Meta's setup guide ends with a step to verify that events are deduplicated and matched correctly.
- Each platform reports in its own way, so numbers will not match exactly. Pick one source of truth (for example your own sales or booking list) and compare every platform to it.
| Check | Question to ask |
|---|---|
| Right action | Does the counted conversion match a real result, such as a paid booking? |
| Once only | Is each booking counted one time (no double tags)? |
| Primary or secondary | Are only the actions you want to optimise for set as Primary? |
| Matches reality | Do the platform's counts roughly match your own booking list? |
- Write the one real result you want, for example: a paid beginner-lesson booking.
- List every place that result is counted: Google Ads, Meta, Google Analytics, your own sheet.
- In Google Ads, open the conversion actions (names can differ by version) and check which ones are Primary and which are Secondary.
- Make only the booking action Primary. Make softer actions (page views, button clicks) Secondary.
- Check for double tagging: is the same action fired by a plugin and a manual tag?
- In Meta Events Manager, check that your Pixel events are coming in and, if you use the Conversions API, that events are deduplicated.
- Make one test booking yourself. See if every tool counts it once.
- Check: for one week, platform numbers are within a believable range of your own booking list, and you can explain any gap.
Videos by other creators on YouTube, for reference. They are not made by or affiliated with The Future Market.
Read the video script
[Host] "If your stopwatch is broken, you can't tell who won the race."
[Text on screen: Primary vs Secondary] "In Google Ads, only your Primary actions guide bidding. Make sure that is your real result, like a paid booking."
[Screen: Meta Events Manager] "On Meta, check your Pixel and Conversions API events, and confirm they are not counted twice."
[Host] "Then make one test booking. Every tool should count it once. Fix tracking first, then spend."
Do a tracking audit of one campaign: fill the four-row table above with Yes or No and a note. Fix the first No before you change anything else.
ClaudeStuck? Copy a ready-made prompt for Claude
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For a grown-up: Claude is for adults (18+). Copy this, paste it into Claude, and use the answer to explain the lesson to your child.
I'm learning "Performance Marketing: testing, funnels and optimisation" on The Future Market. Lesson 1: "Measure first: conversion tracking you can trust". What the lesson teaches: - Before this course: Social Media Marketing (course 3.2) and Paid Ads Basics (course 3.6). Course 3.6 taught UTM links; this lesson adds conversion tracking. - A conversion is a valuable action someone takes after seeing or clicking your ad: a purchase, a booking, a form sign-up. Google Ads measures actions people take on your website after they interact with your ads. - In Google Ads, every conversion action is set as Primary (used for bidding) or Secondary (observation only). Google says setting this correctly is critical: wrong settings can stop automated bidding from optimising well. - Google Ads setup options: a URL-based setup is quickest for page loads; a code-based setup is needed for button clicks, dynamic values such as purchase amounts, or transaction IDs. - Importing from Google Analytics needs Admin access in Google Ads and Edit access in the linked Analytics property; only key events are eligible, and imports can take 24 to 48 hours to appear. - Avoid double tagging (for example a website plugin plus a manual tag), because it can count the same result twice. - Meta: the Conversions API sends events (website, app, offline, business messaging) from your server, website platform or CRM to Meta. If you already have a Meta Pixel, Meta says you can set up the Conversions API for website events in one click from Events Manager. Meta's setup guide ends with a step to verify that events are deduplicated and matched correctly. The exercise I'm working on: Do a tracking audit of one campaign: fill the four-row table above with Yes or No and a note. Fix the first No before you change anything else. I'm stuck. Please: 1. Explain the main idea in plain, simple words with one everyday example. 2. Walk me through the exercise one small step at a time. Ask me what I've done so far before giving the next step. 3. Don't just give me the final answer. Help me do it myself, and check my work when I share it.
I'm a parent helping my child (about 8 years old) with a lesson called "Measure first: conversion tracking you can trust" from the course "Performance Marketing: testing, funnels and optimisation". Here's what the lesson says: Before a race, you make sure the stopwatch works. If the stopwatch is broken, you can't tell who won. In ads, conversion tracking is the stopwatch. If it is wrong, every decision after it is wrong too. The activity: Do a tracking audit of one campaign: fill the four-row table above with Yes or No and a note. Fix the first No before you change anything else. Please explain this so an 8-year-old understands: short sentences, a fun everyday example, and no hard words. Then give me 3 simple questions I can ask my child to check they understood, and a way to do the activity together, one tiny step at a time.
Sources
- Google Ads Help, About conversion tracking: support.google.com/google-ads/answer/6095821
- Meta for Developers, Conversions API: developers.facebook.com/docs/marketing-api/conversions-api/
Funnels: where people drop out
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Designing a fair test
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Reading results: noise, patience and decisions
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Bidding and budgets: match the strategy to your data
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Audiences, retargeting and privacy
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The optimisation log, scaling and honest claims
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Final project
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Quiz
In Google Ads, what is the difference between Primary and Secondary conversion actions?
Primary actions are used for bidding; Secondary are for observation only.
Why avoid double tagging?
The same result can be counted twice.
What does a closed funnel in Google Analytics 4 require?
People must enter at the first step.
What is the maximum number of steps in a GA4 funnel exploration?
10.
In a Google Ads custom experiment, what are the base and the trial?
The base is the original campaign; the trial runs the changed settings next to it.
Does a 50/50 split guarantee equal impressions and spend?
No, it controls auction eligibility only.
How long does Google say to allow for a trial to stabilise?
7 to 14 days.
Which Google bid strategy does not depend on conversion data?
Maximize Clicks.
Name one condition for using opt-out consent in online behavioural advertising.
For example: clear notice of purposes, easy opt-out that takes effect immediately, limiting sensitive information, or destroying or de-identifying data (Canada's privacy commissioner, the OPC, lists these).
What do privacy regulators generally advise about tracking children?
Avoid tracking children and tracking on websites aimed at children (for example the OPC in Canada).
A test shows B winning on clicks but A winning on bookings. Which do you trust?
Bookings, the metric closest to the real goal.
What should a performance claim in an ad be based on?
An adequate and proper test (in Canada, under the Competition Act).
Final exam
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Certificate
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