The math tells you before the relationship does. By the time a CPG brand decides to fire its Amazon agency, the financial damage is usually two quarters old. The ad spend that delivered declining ROAS. The chargebacks nobody contested. The buy box losses nobody escalated. Agencies don't fail overnight — they underperform on a gradient, and most brands can't see the gradient until they know exactly what to measure.
An Amazon agency underperformance signal is a quantifiable operational metric — TACOS, ROAS trend, chargeback recovery rate, buy box share, or reporting cadence — that indicates the agency managing a brand's Amazon account is destroying value rather than creating it. The challenge isn't having the data. It's knowing the thresholds that separate normal variance from structural underperformance. These are the ten specific signals that tell you the relationship is costing you money.
This piece is for CPG brand leaders — VPs of eCommerce, CMOs, founders — who suspect their Amazon agency isn't delivering but can't point to the exact number that proves it. Here are the ten numbers. They're specific. They're measurable. And if you're seeing four or more, you're past the point of coaching.
How do you know your Amazon agency is costing you money?
Most brands evaluate agencies by feel. The calls feel unproductive. The results feel flat. But "feel" doesn't survive a board meeting and it doesn't justify the switching cost. Numbers do. That's why we built The Ten Signs — ten quantifiable indicators, each with a specific threshold, that separate normal agency performance from agency-driven value destruction.
The important word is "quantifiable." Every one of these signs can be verified from your Amazon data in under an hour. If your agency can't produce the data to verify them, that's sign number one.
What are the ten warning signs?
Sign 1: TACOS above 15% for 4+ consecutive months. TACOS (Total Advertising Cost of Sales) measures total ad spend as a percentage of total revenue — not just ad-attributed revenue. For a stable CPG brand with established products, TACOS above 15% for four or more consecutive months means advertising is eating margin rather than driving profitable growth. A competent agency running a mature CPG catalog should maintain TACOS between 8–14% depending on category and growth stage.
Sign 2: Ad ROAS declining more than 20% quarter-over-quarter while spend is flat or rising. This is the clearest ROI degradation signal. If the agency is spending the same or more and delivering less return, the campaign structure is decaying. A one-quarter dip can be seasonal. Two consecutive quarters of 20%+ ROAS decline with stable or increasing spend is operational failure — the agency is burning money on campaigns that aren't converting.
Sign 3: Chargeback recovery rate below 50%. Amazon chargebacks on Vendor Central and FBA accounts are contestable — roughly 60–70% of them. An agency recovering less than 50% of contestable chargebacks is leaving five figures of monthly recoverable revenue on the table. Ask for the number. If they don't track it, they're not doing the work.
Sign 4: Buy box loss above 5% of session share on top ASINs. Your top 10 ASINs by revenue should hold the buy box 95%+ of the time. Buy box loss above 5% on your highest-traffic listings means either unauthorized sellers are undercutting you or the agency's pricing strategy is wrong. Either way, it's revenue walking out the door — every percentage point of buy box loss translates directly to lost conversion.
Sign 5: No listing suppression recovery SLA. Amazon suppresses listings. It happens roughly every eleven days for active accounts. A competent agency has a defined recovery protocol: detect within 24 hours, diagnose the cause, submit the resolution, and restore the listing. If your agency's answer to listing suppression is "we opened a case and we're waiting," they don't have the operational muscle or the Amazon relationships to protect your revenue.
Sign 6: Monthly reporting without weekly velocity reads. Monthly reports tell you what already happened. Weekly velocity reads tell you what's happening now — which ASINs are trending up, which are decelerating, which campaigns are overspending. An agency delivering only monthly static PDF reports is operating on a 2019 agency deliverable model. At CPG velocity with $10M+ in annual Amazon revenue, weekly operational reads are minimum.
Sign 7: No proactive catalog strategy — just maintaining what exists. Your agency should be bringing you new product launch plans, SKU rationalization recommendations, Subscribe & Save enrollment strategies, and seasonal promotional calendars — quarterly at minimum. If the agency's entire engagement is maintaining existing listings and running existing campaigns, they're a maintenance contract, not a growth partner.
Sign 8: Creative refresh cadence longer than six months. A+ content, main images, and brand store assets should be refreshed at least twice a year for top ASINs. Amazon's algorithm rewards listing freshness, and consumer expectations shift. If your bestselling product is running the same main image and A+ content it launched with eighteen months ago, the agency isn't managing your brand — they're hosting your files.
Sign 9: They can't explain your competitor's strategy. Ask your agency to present a competitive analysis of your top three Amazon competitors — their pricing strategy, ad positioning, content approach, and new product launch cadence. If they can't do this in the next quarterly review, they don't understand the shelf your product sits on. Category ignorance is disqualifying.
Sign 10: Leadership turnover without disclosure. You were sold on the account lead in the pitch meeting. That person left six months later, and you found out from an email signature change. If the agency replaced your senior account lead without a formal transition — with introductions, knowledge transfer, and strategic continuity documented — they treat your brand as a replaceable slot in a pod, not a business they're invested in.
What should you do when you see the signs?
If you're seeing one or two signs, have the conversation. Share the specific metrics. Give the agency 90 days to hit defined improvement targets.
If you're seeing four or more signs, the conversation isn't about coaching — it's about transition planning. Start by securing your own data: export all campaign data, listing content, and historical performance. Confirm you own your Brand Registry, ASINs, and advertising accounts. Then give notice per your contract terms — most agency agreements require 30–60 days — and begin evaluating alternatives.
The alternatives are not just "another agency." A brand seeing systemic underperformance from an agency should evaluate whether the agency model itself is the problem. An agency is paid fees regardless of whether your Amazon revenue grows. A 2P partner is paid margin — they make money when your product sells and lose money when it doesn't. That structural difference changes every incentive downstream.
What's the Neato point of view on the agency-to-2P transition?
We built Neato because the agency model has a structural incentive misalignment that no amount of account management can fix. An agency's revenue is fees. A 2P partner's revenue is retail margin. When your ad spend is producing declining ROAS, the agency still gets paid. When a 2P partner's campaigns underperform, the partner's own P&L suffers.
Neato operates as a 2P eCommerce accelerator — not an agency. We buy inventory, own the P&L, and run the full Amazon operation with senior operators, proprietary technology, and cross-channel fulfillment infrastructure. The Ten Signs exist because we've seen every one of them in the Amazon accounts of brands that come to us after two or three agency cycles. The pattern is consistent: the agency model worked at $3M in annual Amazon revenue. It stopped working at $15M. And the brand spent 12–18 months watching the numbers degrade before making the switch.
You don't need to switch to Neato. You do need to know the numbers. Pull your TACOS. Check your chargeback recovery rate. Audit your buy box share on your top ten ASINs. If the numbers are healthy, your agency is doing its job. If they're not, the ten signs will tell you exactly what kind of problem you're looking at.
