An Amazon PPC audit helps sellers understand where their advertising is performing well, where money may be wasted, and which changes are worth making first.
The purpose is to identify opportunities to improve advertising performance and align campaign goals with business objectives.
A thorough audit typically examines
Work through the ten steps in order. Each one ends with an audit action, so you leave with a list of changes rather than a pile of observations.
Compare the latest 30 days with the previous 30 days, and use a longer period when sales volumes are low.
Look for material changes in spend, sales, traffic, and conversion rates.
For example, an increase in CPC may explain rising advertising costs, while a decline in conversion rate may indicate a listing issue, a change in traffic quality, a pricing disadvantage, or increased competition.
Identify the three largest negative performance changes and their causes, and make the necessary changes.
Campaign structure affects how easily you can manage budgets, evaluate targeting, and identify opportunities.
Review whether
Our framework for this is in Amazon PPC Campaign Structure.
A campaign may target a relevant keyword while generating clicks from search queries that are less relevant to the product.
Review your search-term reports for
Avoid automatically pausing every search term that has not converted. Low click volume, delayed conversions, and different product price points can make early data misleading.
Profitable, relevant terms. Harvest into dedicated campaigns.
Relevant but inefficient. Adjust bids, placements or targeting.
Limited data. Keep observing before you decide.
Clearly irrelevant. Add as negatives.
Categorise search terms into four groups: scale, optimise, investigate, and exclude. Harvest the new search terms into new campaigns and exclude the irrelevant terms. Our free search term analyser can speed this up.
Review
Avoid changing every bid simultaneously, because that makes the impact of optimisation harder to measure. Push the placements that are performing well.
A budget audit should establish whether advertising funds are being allocated to the right campaigns.
Questions to ask
A campaign running out of budget is not automatically a reason to increase its budget. First establish whether its incremental sales and profitability justify additional investment.
Separate campaigns into growth, efficiency, and testing priorities, then allocate budgets accordingly.
Advertising performance depends on more than targeting and bids. The product detail page must also persuade shoppers to buy.
If clicks remain steady while orders decline, investigate changes in conversion rate before assuming that bids are the main problem.
Compare conversion trends across products and campaigns to identify whether the issue is account-wide or concentrated in particular listings.
A target ACoS should reflect the economics of the product.
Break-even ACoS is the approximate advertising cost as a percentage of advertising-attributed sales that can be supported before advertising costs eliminate the available contribution margin, under the assumptions used in the calculation.
Selling price ₹1,000Product cost, fees and shipping − ₹650Margin before ad spend ₹350Break-even ACoS = 350 ÷ 1,000 × 100Illustrative numbers only. Use your own product-level costs. Our free ACoS calculator, linked below, does this per SKU.
Calculate a product-level break-even ACoS before setting advertising targets. A target below break-even may be appropriate for profitability, while a different target may be justified for a defined launch or growth strategy. Try our free ACoS calculator or profit calculator.
ACoS and ROAS describe related aspects of advertising performance.
ACoS = Advertising spend ÷ Attributed advertising sales × 100ROAS = Attributed advertising sales ÷ Advertising spendSpend ₹10,000 · Attributed sales ₹40,000A lower ACoS or higher ROAS can indicate improved advertising efficiency, but neither metric independently proves that a campaign is profitable.
Consider margins, organic sales, repeat purchases, attribution rules, and the business objective before evaluating performance.
Report ACoS and ROAS alongside conversion, spend, sales, and profitability measures wherever reliable data is available.
Amazon advertising placements can perform differently depending on the product, keyword, competition, and campaign settings.
Do not increase placement multipliers solely because one placement has a high CTR. Evaluate the resulting sales and economics as well.
Adjust placement settings only when performance data supports a clear hypothesis, and monitor the impact after implementation.
An audit is valuable only when its findings lead to appropriate action.
A practical prioritisation framework is:
Document each change, its rationale, the expected outcome, and the metric that will be used to evaluate it.
Use this worksheet to document your findings during an account review.
| Audit area | What to investigate | Recommended output |
|---|---|---|
| Account performance | Spend, sales, ACoS, ROAS, conversion | Baseline report |
| Campaign structure | Organisation and targeting | Restructuring opportunities |
| Search terms | Relevance and conversion | Scale, optimise, investigate, exclude |
| Bids | CPC and target performance | Bid adjustment list |
| Budgets | Utilisation and priorities | Budget reallocation plan |
| Listings | Conversion barriers | Listing improvement backlog |
| Profitability | Margins and break-even ACoS | Product-level targets |
| Placements | Placement-level performance | Evidence-based adjustments |
| Reporting | Measurement and review process | Ongoing optimisation schedule |
The frequency depends on advertising spend, catalogue size, sales volume, and the maturity of the account. A practical review cadence may include:
Lower ACoS is not always better if profitable sales and growth opportunities are lost.
Insufficient click or conversion data can lead to incorrect decisions.
Large batches of changes make it harder to understand what improved or weakened performance.
Additional spend should be supported by a clear commercial rationale.
Poor conversion may be driven by listing quality, pricing, availability, or customer trust rather than targeting alone.
Advertising attribution and overall business performance are different measurements. Consider organic sales and total sales trends alongside advertising reports.
QHow do I identify wasted Amazon PPC spend?
Review search terms and targets that consume meaningful spend without producing relevant sales. Consider click volume, conversion history, product economics, and the reliability of the available data before making exclusions.
QWhat is a good ACoS for Amazon PPC?
There is no universal target. ACoS should be evaluated against contribution margins, advertising objectives, product maturity, and growth strategy.
QCan an Amazon PPC audit improve sales?
An audit can identify opportunities to improve campaign efficiency, targeting, budget allocation, and conversion. Actual results depend on implementation, competition, product demand, and other factors; improvement cannot be guaranteed.
QCan I audit my own Amazon PPC account?
Yes. Sellers can use advertising reports and account data to conduct a structured review. An external specialist may provide additional analysis, but the value depends on the specialist's expertise and the scope of the engagement.
Looking for hands-on support? See our Amazon PPC management agency service.