Conversion tracking setup: what to measure before you spend

Aug 22
3 min read

Updated: 4 days ago

Introduction

Advertising without conversion tracking is spending without measurement. The platform will still report numbers — impressions, clicks, cost per click — but none of them tell you whether you bought a customer.

Worse, the platform optimises toward whatever it can see. Give it no conversions and it will faithfully deliver cheap clicks instead.

1. Conversion tracking setup begins with what counts as a conversion

Write the list before touching any tool. For most businesses it is short:

an enquiry form submitted
a call started from the website
a booking or appointment confirmed
a purchase completed

That is usually the whole list. If it runs past five, you are tracking activity rather than outcomes, and the report will be harder to read for no gain.

2. Separate the real conversion from the step before it

Distinguish the thing that makes money from the thing that precedes it.

A newsletter signup is not a sale. A brochure download is not a booking. Both can be worth recording as secondary steps, but only one belongs in the column you judge advertising by.

Where the real conversion is too infrequent to optimise on, you may have to optimise for an earlier step — but verify it actually correlates with sales first. Plenty of assumed proxies do not, and optimising toward one buys volume of the wrong thing.

3. Install it once, in one place

Use a single tag or container on the site rather than pasting snippets across pages. Every duplicate installation is a source of double-counted conversions and an inflated sense of performance.

If numbers look surprisingly good, suspect duplication before celebrating. Two installations of the same tracker is one of the most common causes of a campaign that appears to be working and is not.

4. Verify every event by doing it yourself

This is the step that separates a working setup from an assumed one.

Submit the form. Tap the call button. Complete a test booking. Then check that each event appears where you expect, with the value attached where it should be.

Do it on a phone as well as a desktop. A form that works on a laptop and silently fails on mobile is common, and mobile is usually the majority of traffic.

5. Attach values where you can

A conversion without a value tells you how many, not how much.

Where each sale differs, pass the actual amount. Where it does not, attach a sensible fixed value — an average order, or an average job. Even an approximate figure lets the platform optimise toward better customers rather than merely more of them.

For enquiries, use the expected value: what an enquiry is worth on average once your close rate is applied.

6. Count the conversions that arrive offline

Most small businesses close a meaningful share of business by phone or in person, which no website tag will ever see.

Record those in the same list as everything else, with their source, and reconcile against the platform figures periodically. Otherwise the channels that produce phone calls will look like they produce nothing, and the budget will drift away from them.

7. Re-check after every change

Tracking breaks quietly. A site redesign, a new form plugin, a consent banner change, a theme update — any of these can stop an event firing, and nothing announces it.

Add a check to whatever weekly routine you already run: did conversions appear this week at all. A zero that nobody questioned for a month is far more expensive than any campaign mistake.

Conclusion

Decide what counts as a conversion before opening a tool, keep the list to the handful that mean money, and separate real conversions from the steps before them.

Install the tracker once, verify every event by performing it yourself on mobile as well as desktop, attach values so optimisation aims at worth rather than volume, record offline conversions in the same place, and re-check after every change to the site.