Published: 14th July 2026
When Amazon sales are flat but advertising spend keeps rising, the problem is rarely one bad keyword or a single underperforming campaign. It is usually a chain of decisions across retail readiness, campaign structure, bids, budgets and measurement. This Amazon audit example for brands shows what a commercially useful review should uncover – and what should happen next.
The point is not to produce a spreadsheet full of red flags. A proper audit should give a founder, ecommerce lead or marketing director a clear answer to three questions: where is profit leaking, what should be fixed first, and what level of growth is actually realistic from the account?
Consider a GB consumer brand selling a core range of eight products on Amazon. The brand has built steady sales, has a healthy review profile and runs Sponsored Products, Sponsored Brands and Sponsored Display. Monthly revenue sits at £180,000, with £42,000 spent on Amazon Ads.
At first glance, the account looks acceptable. Advertising cost of sales is 23.3%, return on ad spend is 4.3, and several campaigns appear to be generating profitable orders. But the brand’s contribution margin is tightening. Total advertising cost of sales is closer to 31% once the impact of organic sales is considered, while best-selling products repeatedly run out of stock or lose visibility to less profitable variants.
The audit is not there to chase a prettier ACoS number. It is there to establish whether advertising is creating incremental, profitable demand or simply paying to defend sales the brand should already own.
The account has 26 Sponsored Products campaigns, but most are built around broad match ad groups containing 30 to 80 keywords. Best sellers, accessories, lower-margin variants and seasonal products are all mixed together.
That structure makes decisions slow and imprecise. A strong search term can generate sales, but there is no clean path to move it into a controlled exact campaign with an intentional bid. At the same time, irrelevant or weak terms continue spending because negative keyword management is inconsistent.
The audit finds £6,800 of spend over 60 days on terms that either generated no orders or produced an ACoS above the product’s viable threshold. This does not mean every non-converting term should be blocked immediately. Search campaigns need testing headroom, particularly when a brand is expanding category reach. But the account has no agreed testing budget, no search-term harvesting routine and no rule for when a term moves from exploration to exclusion.
The immediate action is to separate campaigns by product priority and intent. Proven exact-match terms move into dedicated campaigns. Broad and phrase activity becomes a controlled discovery layer. Product targeting is split from keyword targeting, allowing the brand to see whether it is winning against relevant competitor ASINs or wasting budget on poor placements.
A blended ACoS is useful for a quick health check. It is not a profit model.
In this example, the hero product has enough margin and repeat purchase potential to support a 28% ACoS. Two accessory products, however, need to stay below 15% to remain commercially sound after Amazon fees, fulfilment and cost of goods. Yet all three products are funded from the same budget pool and are judged against a generic 25% target.
That creates a predictable mistake: lower-margin products absorb clicks because they have competitive bids, then quietly reduce overall profitability. Meanwhile, the hero product loses budget mid-afternoon despite converting well and lifting brand visibility.
A senior audit maps the account against contribution, not vanity metrics. Each ASIN needs a viable advertising range based on margin, lifecycle stage, stock position and strategic role. A new product may justify a higher ACoS while it earns reviews and rank. A mature hero ASIN with strong organic position may need more disciplined defence. There is no universal target that works across every SKU.
The recommendation is to set product-level efficiency guardrails, then allocate budget according to opportunity. That means protecting proven profit drivers first, limiting spend on low-margin products and making deliberate decisions about launch investment rather than allowing the algorithm to decide.
The brand has been increasing bids to gain rank on high-volume category terms. Click-through rate improves, but conversion remains below the category benchmark. More traffic is reaching the listing, yet too much of it leaves without buying.
The audit identifies several retail issues: the main image is technically compliant but weak against stronger competitor imagery; the title is overstuffed and hard to scan on mobile; A+ Content focuses on brand story rather than buying objections; and one key variation has an inconsistent price position. Review sentiment also shows recurring questions about size and product compatibility that the listing does not answer clearly.
Paid media cannot compensate for a listing that creates uncertainty. Higher bids will simply buy more expensive evidence of a conversion problem.
The priority is to fix the retail fundamentals before escalating investment. That includes clearer image sequencing, benefit-led copy, better variation logic and content that resolves the objections visible in reviews and customer questions. If conversion rate rises from 11% to 14%, the account can often scale more efficiently without any increase in bid. That is a commercial gain, not a cosmetic listing project.
The account spends heavily on branded Sponsored Products and Sponsored Brands activity. Brand terms report a low ACoS, which looks positive in platform reporting. However, organic rank for the core brand name is already strong, and the campaigns are frequently serving at the top of search against the brand’s own listings.
Brand defence still has a place. It matters when competitors bid aggressively on your name, when search results are crowded, when a promotion needs prominence or when a new range needs to be introduced to existing brand searchers. The issue is not branded advertising itself. The issue is running it permanently at high intensity without testing the incremental value.
The audit recommends a controlled holdout approach. Reduce branded bids and budgets in selected periods, monitor total branded sales share, competitor presence and organic conversion, then compare the result. This gives the business evidence rather than assumption. If paid brand activity protects profitable revenue, retain it. If it mainly cannibalises organic orders, reallocate budget to category and competitor acquisition.
The account regularly runs out of daily budget before evening, then increases caps after a strong sales day. This creates stop-start visibility and makes performance harder to interpret. It also means Amazon is often spending the largest share of available budget on the campaigns that win auctions earliest, not necessarily those that are most profitable over the day.
The audit separates always-on budget from growth budget. Always-on budget covers proven campaigns, core branded protection and priority retail moments. Growth budget is assigned to search-term discovery, competitor conquesting, new product launches and structured tests. Each has a clear purpose and a ceiling.
This matters most around Prime events, deal periods and seasonal peaks. Scaling budget before stock, conversion and campaign control are ready is not growth planning. It is expensive optimism.
The first 30 days focus on control. Rebuild the campaign architecture around product priority and intent, introduce negative keyword governance, establish product-level ACoS guardrails and stop obvious waste. Retail fixes should begin in parallel, particularly where conversion friction is visible.
Days 31 to 60 focus on learning. Harvest search terms into exact-match structures, test product targeting against a defined competitor set, assess branded incrementality and monitor budget pacing by hour and campaign type. The objective is not to make every campaign look efficient. It is to identify where profitable scale exists.
Days 61 to 90 focus on expansion. Increase investment behind products with the right margin, inventory and conversion rate. Use Sponsored Brands and Sponsored Display to support specific customer journeys, not because every ad format needs to be active. Revisit targets as stock, pricing, reviews and organic rank change.
For this example, the commercial target is not simply to lower ACoS from 23.3% to 20%. The target is to remove £5,000 to £7,000 of monthly waste, improve conversion on the hero listings and redirect budget towards ASINs that can grow contribution profitably. A lower ACoS with falling sales is not a win. Better efficiency alongside controlled revenue growth is.
A worthwhile audit gives you a prioritised operating plan, not a catalogue of observations. You should know which products deserve more investment, which campaigns need rebuilding, which search terms are funding waste, where conversion is blocking growth and how advertising targets connect to profit.
It should also be candid about trade-offs. Aggressive acquisition can increase new-to-brand reach but may raise ACoS. Protecting a hero ASIN can sustain rank but may limit testing budget. Cutting branded spend can free cash but expose competitor pressure. The right answer depends on margin, stock, category competition and the brand’s growth objective.
The useful next step is to put the account under commercial scrutiny before the next budget increase. If the data cannot explain where the next £10,000 of ad spend should go and what return it should create, the account needs direction before it needs more spend.