Guides
Return on ad spend (ROAS) explained
ROAS stands for Return on Ad Spend. It is a metric that shows the effectiveness of an advertising campaign by measuring revenue against the ad spend.
Measurement and analytics
Campaign reporting provides advertisers with metrics available through Amazon Ads Agent reporting. Find information on standard industry metrics such as impressions, clicks, and sales, as well as proprietary Amazon metrics such as long-term sales, new-to-brand, brand halo, and Subscribe & Save.

Our reporting and measurement solutions help all marketers—from small businesses to leading advertising agencies to established brands—accurately assess the impact of their campaigns and make it easy to plan, optimize, and gauge marketing strategies.
Success metrics fall into two categories: industry standard (click through rate, return on ad spend, detail page view rate, etc.) and e-commerce goals, which are unique to Amazon (advertising cost of sale, Subscribe and Save, etc.).
New-to-brand metrics are generated from first-time customers of your brand and help you understand ad-attributed purchases.
Gross and invalid traffic metrics enable reconciliation of Display, Video, and Audio campaign metrics with third-party metrics. Invalid traffic (IVT) metrics are nuanced and can be hard to interpret, so reconcile gross metrics before using IVT metrics to rule out measurement-related discrepancies.
Reach and frequency metrics show the audience volume that was exposed to ads, as well as the quantity of exposures.
Viewability metrics include the percentage of total impressions served that are viewable.
Conversion metrics measure attributed ad impact wherever they spend time, such as on the advertiser’s website or through a measurement partner.
Conversion path reporting shows the sequence of ad touchpoints across 30-day conversion paths, providing visibility into customer journeys.
Long-term sales is an ad-attributed metric that captures the complete value your advertising drives—including immediate sales and the projected value from customer engagement over the next 12 months.

Amazon Attribution, audio ads, Sponsored Brands, display ads, Sponsored Products, Brand Stores, and video ads use campaign measurement.