Most Amazon accounts that have run advertising for a year or more are paying for clicks that never had a chance of converting. The spend is rarely dramatic in any single place. It leaks out through search terms nobody reviewed, budgets that run dry by lunchtime and overlapping campaigns that bid against each other.
An Amazon PPC audit service finds those leaks, ranks them by impact and tells you what to change first. AMZ Seller Assistant, a UK-based Amazon agency that manages Seller Central, PPC and DSP accounts on a performance-based fee model, frames the audit around the outcomes an ongoing engagement would be judged on. That keeps the findings practical rather than academic.
What an Amazon PPC audit covers
An Amazon PPC audit is a structured review of your Sponsored Products, Sponsored Brands and Sponsored Display campaigns, from account structure and keyword targeting through to bids, budgets and placements. An Amazon advertising audit and a PPC campaign review are the same service in plain language: both examine how your ad spend turns into orders and where it does not.
Amazon DSP is covered only where it is in scope. Many brands do not need it yet, and a sound audit says so rather than widening the brief to justify itself. If you are weighing the two, this explains when DSP makes sense alongside Sponsored Ads.
The audit looks at the advertising account. It does not rewrite your listings, fix your pricing or resolve stock problems, although it will flag them when they are the real reason a campaign underperforms.
Where wasted ad spend hides in an Amazon account
Waste sits in two broad places: the queries your ads appear for, and the way the account is built around them. Both are visible in your own data, which is why a review can be done quickly once access is in place.
Search term waste and missing negative keywords
The search term report is the first place an auditor looks. A common early finding is spend on search terms that drew clicks but produced no orders. They appear as rows with cost and no sales, and once they are confirmed as irrelevant they can usually be added as negatives straight away.
Not every zero-sale row deserves a negative, though. Some terms are relevant but sit on a bid that is too low to win a good position, and others are matching more broadly than intended. Broad and phrase match types often pull in queries that an exact-match test would handle better. Adding a negative too early removes a term that might have worked.
So the audit separates spend into two groups. Spend that is losing money is cut. Spend that simply needs more testing is given a bid or match-type change first, with a negative only if the term still fails.
The judgement rests on your margin and sales targets rather than ACoS alone. A campaign running at an ACoS that looks high may be profitable on a high-margin product, while a campaign with a neat ACoS may be starving growth on a product you want to scale. The break-even point is set by what you keep on each unit before advertising, and the audit works from that figure.
Campaign structure, bids and placement leaks
Structural problems cost money more quietly. Overlapping campaigns are a frequent source of waste. When several campaigns target the same product with similar keywords, your own ads can compete for the same shopper query and split the data that decisions depend on.
Budgets are another trap. A campaign that exhausts its daily budget early stops serving for the rest of the day, so it can look efficient while it misses sales. The audit checks whether budget or bid is the real constraint before either is changed, because raising the wrong one simply spends more without fixing anything.
Placement bids deserve a look too. If adjustments push spend towards top-of-search or product page positions that convert poorly for a given product, you pay a premium for weak results. The audit compares placement performance against your targets and recommends where to increase, reduce or leave bids alone.
Sometimes the cause is not in the ad account at all. A weak listing, thin reviews, a poor main image or a stock gap will drag down conversion however well the campaigns are built. When that is the case, the report says so plainly, so you do not keep adjusting bids to solve a listing problem.
How an Amazon PPC audit runs, from data to action plan
The process runs in three stages, and you are not asked to do much beyond the first.
Access and data pull. You grant the right permissions in Seller Central and Amazon Ads, and the agency pulls search term reports, campaign reports and placement data for a meaningful period.
Account review. Each campaign is checked against your margin and sales targets. The review covers search terms, negative keyword gaps, match types, bids, placements, daily budgets and campaign structure, in that order of likely impact.
Action plan. The findings are presented as a prioritised PPC campaign review, so the quickest wins are visible first and nothing is buried in a spreadsheet of observations.
What the audit report contains
The report is built around actions rather than commentary. Each item is ranked by likely spend impact, so you can see where the first hour of work pays back most. It sets out:
- negatives to add, with the search terms that justify each one
- bids to lower or raise, by campaign and target
- placements to adjust
- winning search terms to promote into exact-match campaigns
You do not have to hand the work to the agency that wrote the report. Some brands take the plan and implement it themselves, and there are alternatives to hiring an Amazon PPC manager worth comparing before you decide how to resource it.
Free or paid Amazon PPC audit: choosing the right starting point
A quick Amazon PPC health check and a full audit are different products with different outcomes. The health check flags the most visible leaks, such as obvious zero-sale search terms or a campaign out of budget by mid-morning. A full audit goes through the whole account and ends in a complete, ranked action plan.
The next step differs accordingly. After a health check, you typically know whether a deeper review is justified. After a full audit, you have a plan you can implement yourself or hand to a team that manages it for you.
If you are searching for a free Amazon PPC audit, be wary of any provider that does not state what the review includes and what it leaves out. AMZ Seller Assistant sets out the scope and terms of the audit, including whether any charge applies, when you request it, so you know what you are getting before you share access. Nothing is assumed in advance.
A health check will not tell you how much you could save, and it is not a substitute for the full review if your account runs several campaign types across a wide catalogue. It suits a brand that wants a first look. A full audit suits one that is ready to act.
When you compare providers, a checklist for choosing an Amazon PPC agency shows the terms and questions to expect before you book.
Turning the audit into performance-based management
The audit is designed as the entry point to ongoing management, not a standalone document that sits in a folder. Every item in the action plan is something a managed engagement would do anyway, which is why the findings convert so directly into work.
How the action plan becomes a managed engagement
The prioritised actions become the first phase of managed work. The highest-impact items go first: negatives, bid corrections, budget and placement changes, and the promotion of winning terms into exact-match campaigns.
Before the first changes go live, targets are agreed jointly. These are typically ACoS or TACoS goals set against your margin and growth plans, so both sides know what success means. They are then reviewed on a fixed cadence, which keeps decisions tied to results instead of impressions of how things feel.
This approach does not suit every brand. If you want to run campaigns entirely in-house and only need a one-off diagnosis, the audit still stands on its own, and a managed engagement is optional.
How performance-based fees work after the audit
Performance-based fees link what you pay to measured results. Instead of a flat retainer that is owed whether or not the account improves, the fee follows the outcomes agreed at the start.
The exact fee basis is set out in the proposal rather than assumed from the audit. That matters because the right measure depends on your account and goals. You can read more on how performance-based agency fees are structured, and what Amazon PPC management typically costs in the UK gives useful context if you are weighing a one-off audit against ongoing work.
Preparing your Amazon account for an audit
A little preparation shortens the review and sharpens the findings, because an auditor with the right access and context spends the time on analysis instead of chasing data. Most of what is needed already exists in your account.
Access, data and targets to have ready
Start with access. The agency needs Seller Central and Amazon Ads access with the right user permissions, which you can grant without sharing your main login. Confirm too whether you are enrolled in Brand Registry, since Sponsored Brands campaigns depend on it and the scope of the review changes if you are not.
Next comes the data. A meaningful run of search term and campaign reports matters more than a recent week, because a short window can hide seasonality and leave too few clicks to judge a term fairly. If you have run advertising for several months, that is usually enough to work from.
For a UK-based brand requesting an Amazon ad spend audit, add the commercial context:
- sales and margin targets, so waste is judged against what the product earns
- the daily and monthly budgets you currently run, quoted in GBP
- a note of any recent stock, pricing or listing changes that explain shifts in performance
That last item saves the most time. A dip in conversion after a price rise or a stock-out looks like a campaign fault until someone knows what happened.
Request an Amazon PPC audit from AMZ Seller Assistant
The next step is simple, and it commits you to nothing beyond a review.
- Request the audit. AMZ Seller Assistant confirms the scope and terms that apply to your account.
- Set up access. You grant the permissions described above.
- Receive the audit. The account is reviewed and the prioritised action plan is delivered.
- Review call. The findings are walked through before any decision on ongoing management.
Only after that call does the question of management arise. If the action plan shows work you want run end to end, full Amazon account management covers Seller Central, PPC and DSP under the performance-based model, with any performance guarantee defined by AMZ Seller Assistant’s own terms in the proposal.
To start, request an Amazon PPC audit of your own account from AMZ Seller Assistant and have your access details, targets and budget figures ready.
Frequently asked questions
How long a data history does an Amazon PPC audit need?
A meaningful run of search term and campaign reports is what counts, not a fixed date range. A few months of advertising usually gives enough clicks to judge terms fairly and to show seasonality. A single week is rarely enough to separate waste from terms that need testing.
Will an audit tell me which search terms to add as negatives?
Yes. The report lists negatives to add alongside the search terms that justify each one. Terms that are relevant but poorly bid are flagged for a bid or match-type change first, so you do not block queries that could still convert.
Is a PPC health check the same as a full Amazon advertising audit?
No. A health check flags the most visible leaks and shows whether a deeper review is worthwhile. A full audit covers the whole account and ends in a complete action plan ranked by likely spend impact.
Do I have to sign up for management after the audit?
No. The audit ends with a review call before any decision on ongoing management. You can implement the action plan yourself, or discuss a managed engagement with targets agreed before changes go live.
What if the problem is not the ads?
The report says so plainly. A weak listing, thin reviews or a stock gap can suppress conversion however well campaigns are built. Those findings sit outside the ad account, so fixing them is a separate job from the audit.