Stop wasting ad spend: the seven leaks worth checking first

Aug 18
3 min read

Updated: Aug 27

Introduction

Most wasted advertising budget is not lost to bad adverts. It is lost to structural problems that make good adverts unprofitable — untracked conversions, budgets spread too thin, traffic arriving at pages that cannot convert it.

These are worth checking before touching creative, because they are cheaper to fix and they affect everything.

1. Stop wasting ad spend by confirming conversions are tracked

The largest single leak, and the most common.

If conversions are not being recorded properly, the platform cannot optimise toward them. It will optimise for whatever it can see — clicks, cheap traffic — and deliver exactly that. Campaigns that appear to fail frequently turn out to have been reporting nothing back.

Verify that events fire, that values are correct, and that a test purchase or enquiry appears where you expect it. Do this before spending anything further.

2. Check you are not paying for people who already know you

A surprising proportion of budget goes to people who would have arrived anyway: existing customers, and searchers who typed your brand name.

Brand-name traffic sometimes deserves protecting, but it should be counted separately. Blended into general performance it flatters everything, because those people were already yours.

Exclude existing customers from acquisition campaigns unless you specifically intend to reach them. Retention deserves its own budget and its own message.

3. Consolidate a split budget

Four campaigns at a quarter of the budget each is the most common structural waste in small accounts.

None accumulates enough conversion data for the platform's optimisation to work, so all four perform below what one properly funded campaign would. You also learn nothing, because no single test reached significance.

Concentrate. One funded campaign beats four starved ones, and it produces knowledge as well as customers.

4. Fix the landing page before raising the bid

Advertising sends people somewhere. If that destination converts poorly, every improvement upstream is diluted.

Check the obvious: does the page match what the advert promised, does it load quickly on a phone, is the next action clear, and is anything unnecessary being asked for before someone can act.

Raising conversion from 2% to 3% reduces cost per customer by a third with no change in spend. It is almost always cheaper than buying more traffic.

5. Look at what you are excluding — and what you are not

Most accounts have never had exclusions reviewed. Placements that never convert, locations you do not serve, times of day that produce nothing, search terms that are irrelevant.

Pull a report by placement, by location and by search term, and look for spend with no conversions over a meaningful period. Exclude it.

This is dull maintenance and it routinely recovers a noticeable share of budget.

6. Stop paying for engagement you cannot use

Objectives that optimise for clicks, views or engagement will deliver those things reliably, and they are not customers.

Unless you have a specific reason, optimise for the conversion that matters. Where conversions are too infrequent to optimise on, pick a reliable earlier step and confirm it actually correlates with sales — many assumed proxies do not.

7. Set a floor and enforce it

The final leak is indecision. Campaigns that underperform tend to be kept running while someone decides what to do.

Set the rule in advance: cost per customer above a defined figure for a defined period means pause and diagnose. Work the figure out from your customer lifetime value so it means something.

Deciding the rule while a campaign is losing money is how businesses spend another month on it.

Conclusion

Before adjusting creative or bids, confirm conversions are tracked, separate people who already know you, consolidate a split budget, and fix the landing page.

Then review exclusions, optimise for conversions rather than engagement, and set a cost ceiling you will actually enforce. Most wasted spend is structural, which is good news — structural problems are fixed once and stay fixed.