Amazon Marketing Cloud answers the questions your standard Amazon Ads reports cannot, and the brands that use it well make different budget decisions because of it. AMC is Amazon's secure, privacy-safe clean room, where advertisers can run analytics and build audiences across pseudonymized signals, including Amazon Ads signals and their own inputs. Amazon says it is available at no cost to eligible advertisers, and that advertisers using sponsored ads can access it through self-service. If your partner has never walked you through an AMC analysis of your own account, that tells you something important about how they think about your business.
What Standard Reporting Shows, and What It Leaves Out
Standard campaign reports give each sale to one ad. Under Amazon's ad campaign attribution rules, Sponsored Products campaigns for sellers credit the last click within a 7-day window, and when a shopper interacted with several ads, Amazon uses a last-touch model that prioritizes the last click over the last view. Amazon attributes a conversion to no more than one ad interaction across all campaigns and all advertisers. Everything that came before that touch drops out of the campaign view.
Amazon's console now offers conversion path reporting, which shows a 30-day path to conversion and the top-converting paths across Amazon DSP, Streaming TV, Display, Sponsored Brands, and Sponsored Products, using a simplified path. It is a useful starting point. AMC goes further. Amazon says advertisers can use it to query event-level and user-level signals across sources using custom metrics and attributes of their choice, with built-in aggregation thresholds that protect user privacy. In November 2025 Amazon expanded AMC's ad traffic lookback window from 13 months to 25 months, long enough for the year-over-year analysis that seasonal CPG demand needs.
The privacy model matters for your own data too. Amazon says AMC only accepts pseudonymized information, that you can only access aggregated, anonymous outputs, and that the signals you upload cannot be exported or accessed by Amazon.
The Analyses a Strong Partner Runs
- New-to-brand by campaign type: Amazon counts a purchase as new-to-brand when the customer hadn't purchased from the brand in the previous 365 days. Knowing which campaigns acquire new customers and which mostly harvest existing ones is the starting point for every acquisition budget.
- Paths and overlap: which combinations of Sponsored Products, Sponsored Brands, Display, DSP, and Streaming TV precede a purchase, and where those campaigns reach the same shoppers more than once.
- Frequency: how many exposures a shopper sees before converting, and where extra impressions stop adding sales.
- Repeat purchase and cohort value: for replenishment products, what customers acquired through each path go on to buy. With 25 months of ad traffic history, a partner can follow a full year of reorders.
- Retargeting waste: how much spend goes to shoppers who were already going to reorder. Paying for a conversion that was happening anyway is not growth.
- Custom audiences: Amazon says audiences created in AMC can be activated directly for media buying across sponsored ads, video ads, and display ads, so a finding can become an action, such as holding recent buyers out of acquisition campaigns or reaching lapsed ones.
If your current partner is not running these analyses and acting on them in your monthly strategy reviews, ask them directly why not. The answer will tell you whether they are equipped to manage a brand at your scale.
Access Is Easier Now. Interpretation Is the Hard Part.
Amazon has made AMC far easier to use. It says advertisers can generate, visualize, and act on insights with a few clicks and no SQL needed, using curated analytic and audience templates, and its Ads Agent in AMC generates analytics SQL from plain-language questions while letting users inspect, refine, and control the query logic. The technical barrier has dropped. The hard part has not changed: asking the right question about your brand, reading the answer against your margins and inventory, and then changing budgets, bids, and audiences because of it.
An advice-only consultant can tell you AMC matters. A tool-only vendor can put a dashboard on top of it. Neither changes your campaigns. The test of an AMC partner is simple: show me a decision AMC changed last quarter, and what happened next.
Why Incentives Decide Whether AMC Findings Get Acted On
AMC often points to spend that can come out: overlapping audiences, retargeting shoppers who would have reordered anyway, campaigns that look strong on last touch and weak on new-to-brand. An agency paid on a percentage of ad spend loses revenue when it acts on those findings, so they tend to stay in the deck. An operator-led partner managing your Amazon brand as an extension of their own business, with fees aligned with your growth, has the opposite incentive: cut the waste, protect the margin, and reinvest where the data says it works.
AMC and TikTok Shop Are Part of the Same Attribution Problem
A shopper sees a creator video on TikTok, searches for the product on Amazon, and buys through a Sponsored Products ad. The Amazon ad gets the credit. TikTok gets none. AMC works with Amazon Ads signals and the inputs you choose to bring in, so on its own it will not see that video.
A partner can still narrow the gap. Amazon's attribution rules count branded searches, when shoppers search Amazon for a brand name or branded term, as a conversion type. Amazon Attribution, a free measurement solution, shows the on-Amazon impact of marketing across non-Amazon channels including social, video, and affiliate and influencer campaigns. Read alongside TikTok Shop data, they give a much cleaner view of what is driving demand than either platform's reports alone.
Brands running both channels with separate partners will always have this blind spot. Managing TikTok Shop and Amazon as a single channel strategy with unified reporting is not a luxury for brands doing serious volume. It is a baseline requirement for sound budget decisions.
What to Ask Your Current Partner About AMC
- New-to-brand purchases and sales by campaign type for the last 90 days, using Amazon's 365-day definition.
- The top conversion paths for our top three SKUs, and which ad combinations preceded purchase.
- Audience overlap and frequency across Sponsored Products, Sponsored Brands, Display, DSP, and Streaming TV.
- One budget, bid, or audience decision AMC changed in the last quarter, and the measured result.
- A time AMC led you to recommend cutting spend, and what happened to sales.
- Which AMC audiences are live in our campaigns today.
- The query logic behind the numbers, not just a summary slide.
- How you connect AMC with TikTok Shop and other off-Amazon activity.
If your partner cannot produce these in a reasonable timeframe, you are not getting AMC-level management. You are getting standard campaign reporting repackaged as strategy. The brands that compound on Amazon are the ones whose partners work at this level of precision. The brands that plateau are the ones whose partners optimize for spend volume or lean on last-touch metrics to justify their fees.
Demand more from your data. Demand more from your partner.
Want to see exactly where your brand stands? Get the free CPG Amazon Benchmark Report and see your margins, ad costs, conversion, and fees benchmarked against the real state of Amazon in 2026.
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