Benchmark browse category path is a dimension in Amazon Ads unified reporting that names the product category used to build a campaign's benchmarks. When Amazon compares a campaign's click-through rate or cost per click with those of competing brands, it first has to decide which competitors count. Category is one of the inputs to that choice, and this field writes the category out in words, as a route through Amazon's retail catalogue, so the advertiser can see what the campaign was measured against. It exists because a percentile figure without a stated peer group cannot be checked. The field is not a performance number; it is a label attached to rows that carry benchmark numbers.

Where the field appears

Amazon replaced its separate sponsored ads and programmatic report pages with unified reporting, which reached general availability on June 8, 2026. Its dimensions reference, updated on November 11, 2026, lists 156 attributes in 11 categories. One of those categories is Benchmark, with seven attributes: benchmark brand ID, benchmark brand name, benchmark browse category ID, benchmark browse category path, benchmark browse category level, benchmark browse category marketplace and benchmark campaign goal, according to PPC Land's count of the reference.

Each of the seven carries markers for DVA+ (the programmatic display, video and audio buying product formerly called Amazon DSP), Sponsored Products, Sponsored Brands and Sponsored Display. None has a "former name", which marks them as new fields rather than renamed legacy columns.

A separate Amazon Support Center page on benchmark metrics, also updated on November 11, 2026, names three of the seven fields directly. It says benchmark brand name, benchmark browse category path and benchmark campaign goal show "the peer group for each comparison", PPC Land reported on November 12. Benchmark metrics appear as 25th, 50th and 75th percentile columns in unified reporting and the Reporting API, labelled for instance "CTR (p25), CTR (p50), and CTR (p75)", and as a median in the campaign manager's insight card.

How the value is populated

The advertiser does not type this field. Amazon's dimensions page says six of the seven benchmark attributes are "derived from the products promoted in the campaign"; benchmark campaign goal is instead derived from the campaign goal and optimisation settings. In practice that means the category path follows from the products a campaign advertises, identified by their ASINs (Amazon Standard Identification Numbers, the retailer's product codes).

A path, rather than a single word, reflects how Amazon organises its catalogue. Products are filed in a hierarchy of browse nodes. Amazon's Creators API documentation, the successor to its Product Advertising API, describes each node as having an ID, a display name "as visible on the Amazon retail website", and an "ancestor" ladder that runs "up-to root browse node". A root node has no ancestor; a leaf node has no children. Names alone mislead: node 3060 in the US store displays as "Orphans & Foster Homes", so Amazon also supplies a context-free name, "Children's Orphans & Foster Homes Books".

The benchmark fields map onto that structure. The ID field identifies a node. The path field spells out the chain of categories from the top of the tree down to that node in readable form. The level field records how deep in the tree the node sits. The marketplace field records which country store's tree is being used, which matters because catalogues differ from one store to another.

What Amazon has not published is the exact recipe. Its public documentation does not state the separator used between categories in the path string, which level of the tree is chosen, or how a single category is selected when a campaign promotes products from several branches. A buyer exporting the field should read it as Amazon's statement of the peer category, not as a value that can be reproduced independently.

How category feeds the benchmark

Amazon's method is set out in a white paper, "The New Standard: How Benchmarks Are Transforming Performance Evaluation", promoted in a March 27, 2026 article by Salena Huang, a product marketing manager at Amazon Ads. The process runs in four steps.

First, a system called PeerSets finds comparable brands for each "focus brand", the advertiser being benchmarked. It combines a K-Nearest Neighbors (KNN) model, which calculates "the mathematical distance between brands based on their brand-level revenue and average sales price within a category", with a large language model that judges "direct competition dynamics, market segment overlap, and customer base similarities". The phrase "within a category" is where the browse category enters. Second, peer campaigns must match on ad format, campaign goal and product type and pass activity thresholds. Third, performance is aggregated per peer brand using sum-over-sum calculations. Fourth, Amazon requires "at least five peer brands" and caps any one brand's weight at 49%; if fewer than five peers exist, no benchmark is shown.

Percentiles are spend-weighted. A worked example in the white paper produces a weighted median click-through rate of 3.00% for a three-brand set, where a simple median would have given a different answer, according to PPC Land's reading. Larger advertisers thus pull the 50th percentile towards their own results.

The browse category path is the visible end of a mostly invisible process. It shows which slice of the catalogue the KNN model searched, but not the peer brands, which remain anonymous.

Origin and evolution

A category benchmark report for Sponsored Brands was in limited release by mid-2021. An Ad Badger article dated June 2, 2021 described it as showing "your brand and all of the categories and subcategories where your Sponsored Brand ad appeared", compared with the 25th, 50th and 75th percentiles of the category. Amazon has not published a launch date for that report.

The current product began on November 18, 2025, when Amazon added two report types to its Reporting API: dspBenchmarks for programmatic campaigns and crossProgramBenchmarks for sponsored ads, PPC Land reported. Amazon's own launch notice is dated November 19 and limited the launch to the United States, for brand owners and representatives enrolled in Brand Registry and for endemic advertisers, those selling on Amazon.

General availability came on May 18, 2026, across 18 marketplaces from the US to Egypt, according to Amazon's announcement. Endemic advertisers were eligible in 15 of them. Eight metrics were covered: percent of purchases new to brand, purchase rate new to brand, cost per purchase new to brand, click-through rate, cost per click, video completion rate, cost per completed view and cost per thousand impressions (CPM). PPC Land's coverage of the expansion noted that Amazon had not published how peer groups were built. The November 11, 2026 dimensions reference then exposed the category as a named field.

Why it matters

The peer group decides whether a campaign looks strong or weak. A brand selling premium kitchen knives benchmarked against a broad kitchen category would face a different median cost per click than one benchmarked against a narrow cutlery node. The path field lets an analyst see which of those happened.

It also helps reconciliation: agencies need the field to explain why two campaigns from the same brand carry different benchmark values.

Amazon's Support Center pairs each metric with recommended actions, and none of the 16 actions suggests cutting a budget or pausing a campaign, as PPC Land found. The category field is one of the few elements that lets a buyer test whether the comparison behind such advice is fair.

Limitations and disputes

The method is opaque at the point that matters most: the rule that turns promoted ASINs into one category path is not public. Amazon's own descriptions of the peer group also pull in different directions. The Support Center describes the median as the level where "half of peer brands perform above and half perform below", while the white paper uses spend-weighted percentiles, under which the median is weighted by spend rather than brand count. PPC Land flagged that tension.

Product coverage is inconsistent. Amazon's May 2026 announcement includes Sponsored Display and Sponsored TV. The November Support Center page, as reported by PPC Land, omits Sponsored Display, while the dimensions page marks the benchmark fields for Sponsored Display and says Sponsored TV is "not yet" supported in unified reporting.

The five-brand minimum leaves gaps: in narrow categories or smaller marketplaces no benchmark appears. Amazon's dimensions page says null is the value when a dimension does not apply to an ad product.

No independent body audits the peer sets or the category assignment.

Benchmark browse category path is not...

Benchmark browse category ID. The ID is the numeric identifier of the same node; the path is its readable form.

Advertised product category. A separate unified reporting dimension describes the category of each advertised product itself. A campaign can promote products whose own categories differ from the single benchmark category.

Category targeting. In Sponsored Products and Sponsored Display, advertisers can choose categories to show ads against. That is a targeting setting chosen by the advertiser; the benchmark category is assigned by Amazon for measurement.

Benchmark brand name. This field identifies the advertiser's own brand being benchmarked, the "focus brand", not the peer brands, which are never named.

Recent developments

The past week has brought the field into view. On November 11, 2026, Amazon updated both its unified reporting dimensions reference and its Support Center page on benchmark metrics and recommended actions. On November 12, Amazon's migration page moved the shutdown of legacy report pages to January 31, 2027, and listed the benchmark report among ten report types that "aren't available yet in unified reporting", as PPC Land reported. Legacy pages are due to become read-only on December 17, 2026.

Timeline

  • June 2, 2021 - Earliest dated description of the Sponsored Brands category benchmark report, with category percentiles.
  • November 11, 2025 - Unified reporting opens in beta.
  • November 18-19, 2025 - Amazon launches benchmarks in the US through dspBenchmarks and crossProgramBenchmarks report types.
  • March 27, 2026 - Amazon publishes its benchmarks white paper describing KNN and LLM peer matching, a five-brand minimum and a 49% weight cap.
  • May 18, 2026 - Benchmarks reach general availability in 18 marketplaces.
  • June 8, 2026 - Unified reporting reaches general availability.
  • September 29, 2026 - Amazon DSP renamed DVA.
  • November 11, 2026 - Dimensions reference lists seven benchmark attributes, including benchmark browse category path; Support Center benchmark metrics page updated.
  • November 12, 2026 - Migration page lists the benchmark report as not yet available in unified reporting; legacy shutdown set for January 31, 2027.
  • December 17, 2026 - Legacy report pages scheduled to become read-only.
  • January 31, 2027 - Legacy report centres scheduled for decommissioning.

Summary

Who: Amazon Ads assigns the value; advertisers, agencies and reporting tools using sponsored ads and DVA+ campaigns read it. Brand Registry members and endemic advertisers are eligible for benchmarks.

What: A unified reporting dimension that states, as a readable chain of catalogue categories, the browse category Amazon used to find peer brands for a campaign's benchmark percentiles.

When: Benchmarks launched in the US in November 2025 and went global on May 18, 2026; the field was documented in Amazon's dimensions reference on November 11, 2026.

Where: In unified reporting in the Amazon Ads Console and the Reporting API, alongside the browse category ID, level and marketplace fields, across 18 benchmark marketplaces.

Why: A benchmark percentile means little without its peer group. The path discloses the category side of that peer group, though Amazon has not published how it is chosen.