A PPC audit for underperforming campaigns should answer a straightforward commercial question: why is budget being spent without producing enough qualified leads, sales or pipeline? It is not a platform health check designed to make account metrics look tidier. It is a structured diagnosis of what is wasting budget, what is preventing conversion and what should be prioritised next.
A campaign can appear busy while failing the business. Click-through rate may be healthy, impressions may be growing and reports may show a reassuring volume of conversions. Yet if those conversions are low-intent enquiries, duplicate form submissions or calls that never become opportunities, performance is not working. The audit needs to connect activity in Google Ads, Meta Ads or Microsoft Ads to the outcomes that matter.
Start with the commercial baseline
Before reviewing bids, keywords or creative, establish what a viable result looks like. For a lead generation business, that usually means understanding the acceptable cost per qualified lead, the proportion of leads that become sales opportunities, close rates and average customer value. For ecommerce, it may mean contribution margin, repeat purchase behaviour and the point at which acquisition costs become unsustainable.
Without this baseline, optimisation can become cosmetic. A lower cost per lead is not automatically an improvement if lead quality falls. Equally, a higher cost per acquisition may be commercially sensible when it brings larger accounts or customers with stronger lifetime value.
This is where many underperforming campaigns become difficult to assess. The ad platform reports a conversion, the CRM records a lead, but nobody can reliably say whether that lead was qualified, contacted or won. A useful audit identifies these gaps early, rather than treating platform reporting as the final word.
Check conversion tracking before judging campaign performance
Poor tracking can make a capable campaign look weak, or make wasted spend appear successful. The first technical priority is to establish whether conversion actions are accurate, complete and assigned the right value.
A review should look beyond whether a tag fires on a thank-you page. It should test whether the conversion is unique, whether it can be triggered without genuine intent, and whether the action represents meaningful progress towards revenue. A page view, time on site or button click can be useful for analysis, but should rarely be the primary signal used to steer bidding.
For lead generation, stronger measurement often includes validated form submissions, meaningful phone calls, booked meetings and, where possible, qualified or closed leads imported from the CRM. Consent requirements, cookie limitations and offline sales cycles mean perfect attribution is not always possible. Clearer tracking is still achievable, and it gives decision-makers a more honest view of channel performance.
The same principle applies to Meta Ads. If the platform is optimising towards a cheap on-page event rather than a verified lead, it will find more people likely to complete that event. That does not mean it is finding prospective customers. The event selected for optimisation needs to reflect the commercial objective as closely as practical.
Review campaign structure and budget control
Campaign structure determines how much control the account has over spend, search intent, audiences and reporting. When structure is too broad, strong and weak activity are mixed together. This makes it harder to see what is driving better leads and easier for budget to drift towards cheaper but less valuable traffic.
In search accounts, an audit should assess whether campaigns separate materially different services, locations, brand terms and intent levels. A London business targeting high-value B2B enquiries may need different messaging, landing pages and budget rules for a specific service search than for broader research-led terms. Combining them may increase volume, but it often masks the real cost of acquiring a useful lead.
There is a trade-off. Overly fragmented accounts create thin data, extra management and unclear bidding signals. The aim is not maximum complexity. It is enough separation to control meaningful differences in intent and commercial value.
Budget allocation also deserves scrutiny. Campaigns are often funded because they have always been funded, not because current results justify it. A proper review compares spend against qualified outcomes, identifies budget caps that restrict proven activity and flags campaigns that have consumed money without a credible route to improvement.
Find irrelevant search terms and keyword leakage
Search terms are among the clearest sources of evidence in a PPC audit. They show what users actually typed before an advert was served, which can be very different from the keyword list that was originally approved.
Broad match and automated bidding can produce valuable incremental demand when tracking is reliable and account controls are sound. They can also introduce irrelevant searches that look plausible at first glance. Terms relating to jobs, courses, free services, consumer queries or unrelated product categories can quietly absorb budget while contributing no meaningful revenue.
The audit should examine search terms by spend, conversions, lead quality and theme. Negative keywords should be reviewed as part of an ongoing process, not a one-off clean-up. It is equally important to identify high-intent search themes that are being missed because keyword coverage, ad relevance or budget is too limited.
Microsoft Ads requires the same discipline. Its audience and search mix can complement Google Ads, particularly for certain B2B and professional audiences, but it should not be treated as a copy-and-paste extension with no independent measurement.
Assess targeting, creative and message match
Underperformance is not always a bidding problem. The audience may be too broad, the offer may lack a reason to act, or the advert may promise something the landing page fails to support.
For paid social, an audit should review audience definitions, exclusions, geographic settings, frequency, placements and the role each campaign plays in the buying journey. Prospecting, retargeting and existing-customer activity need different expectations. Retargeting may generate stronger conversion rates, but it can be overstated if the audience is too small, already highly engaged or exposed to other channels that created the demand.
Creative should be judged against more than engagement. Clear ads qualify the audience as well as attracting attention. They communicate who the service is for, what problem it solves and what happens next. If campaigns attract a high volume of curious clicks but few worthwhile enquiries, the message may be too generic or the offer may be attracting the wrong people.
Consistency matters after the click. An advert focused on a specific service should usually lead to a page that continues that conversation, rather than a general homepage. The page should make the proposition clear, support credibility and reduce avoidable friction in the enquiry process. Shorter forms can increase volume, but a small number of qualifying questions may improve lead quality. The right balance depends on sales capacity and the value of each opportunity.
Turn audit findings into practical priorities
An audit without priorities is simply a long list of observations. The most useful output separates urgent measurement issues from high-impact efficiency work and longer-term tests.
Immediate actions may include correcting broken conversion tracking, excluding clearly irrelevant search terms, pausing obvious budget waste or fixing location settings. The next layer could involve restructuring campaigns, revising bidding targets, improving landing-page alignment or building better retargeting audiences. More strategic work, such as CRM integration or a new creative testing framework, may take longer but can substantially improve decisions over time.
Each recommendation should explain the problem, the expected effect, the evidence behind it and how success will be measured. It should also acknowledge uncertainty. Not every weak campaign needs to be paused immediately. Some need more data, a revised offer or a cleaner measurement framework before a fair judgement can be made.
For businesses spending meaningful sums on paid media, this disciplined approach replaces vague reporting with accountable action. Invaro Media approaches PPC audits as a way to establish the facts: where spend is producing value, where lead quality is breaking down and what change is most likely to improve performance.
The next useful step is not to make every possible adjustment at once. Fix the measurement that informs decisions, stop the clearest waste, then test the changes that can produce better leads with evidence behind them.
