Harpy Glossary

AA (Amazon Advertising)

Amazon & D2C glossary · Harpy Media

Amazon Advertising (AA) is the platform’s pay-per-click ad suite — Sponsored Products, Sponsored Brands, Sponsored Display, and the programmatic tiers above them. You bid on keywords, products, or audiences; your ads appear in search results and on detail pages; you pay when a shopper clicks.

What is AA?

What makes AA unusual among ad channels is intent: you’re reaching people at the moment they’re shopping, with a cart one click away. Managed well, ads accelerate the sales velocity that lifts organic rank, so paid spend compounds into free traffic. Managed badly, ads are a machine that converts working capital into search-term reports — efficiently, and in volume.

The campaign types, and what each is for

Sponsored Products: keyword- and product-targeted ads inside search results and on detail pages — the workhorse, and for most brands the majority of sensible ad spend. Sponsored Brands: banner placements above search results for brand-registered sellers, driving to your storefront — demand capture and defense. Sponsored Display: retargeting and audiences on and off Amazon, for chasing the 97% who looked and left. Above them sits DSP for enterprise-scale programmatic. Most brands should earn their stripes in the first two before touching the third.

The metrics that govern everything

Three numbers run this world — learn all three cold:

ACoS = ad spend ÷ ad sales × 100 | TACoS = ad spend ÷ total sales × 100 | ROAS = ad sales ÷ ad spendACoS runs the campaign; TACoS runs the business. Watch both; trust the second.

Why the auction rewards good listings

Amazon’s ad auction isn’t won by the biggest bid alone. It weighs your bid against your listing’s historical conversion — a high-converting listing wins placements at lower CPCs than a weak one. That’s the quiet compounding loop of Amazon ads: better listings make cheaper clicks, cheaper clicks make more sales, more sales make better listings. Ad management and listing quality are one job wearing two hats.

ACoS vs TACoS: the question each answers

ACoS measures the paid channel in isolation — essential for campaign decisions. TACoS measures ad spend against total revenue, organic included — and it’s the honest health metric. New products run hot ACoS to buy velocity; as organic rank builds, total sales should outgrow ad spend and TACoS should fall. A shrinking TACoS is the flywheel visibly working; a flat TACoS with falling organic share is the opposite.

In practice

A seller launching an ergonomic seat cushion runs tight exact-match Sponsored Products campaigns on long-tail terms, targeting 22% ACoS against a 35% gross margin. Every sale is profitable, and the velocity lifts the main keyword’s organic position — within two months, sponsored and organic are sharing the work, and blended acquisition cost is falling.

⚠️ Watch out. A seller sets broad-match auto campaigns on a fat daily budget with no negative keywords. Irrelevant queries drain the budget before lunch; ACoS lands at 75%; the margin is gone and there’s no working capital left for reorders. The report is full of data and the account is out of money — unmanaged broad match is a tuition payment, not a strategy.

💡 Harpy tip. Use auto campaigns for two weeks as discovery, then harvest: extract the converting search terms into exact-match campaigns with controlled bids, and negate them out of the broad nets. Auto is a research budget; exact is where profit lives.

How Harpy Media helps

This is our daily work — campaign architecture, search-term mining, bid discipline, and the listing improvements that make every click cheaper. We run PPC to a simple standard: the business gets more profitable, measurably, or we change what we’re doing.

AA FAQ

How do I lower my ACoS?

Three levers: negative out non-converting search terms, shift budget from broad to exact-match, and raise conversion (images, copy, price) so fewer clicks are wasted per sale.

What is a good ACoS?

One that sits below your break-even ACoS if you want profit per sale — or deliberately above it during a launch, buying rank with a planned budget. “Good” is margin math, not a universal number.

What is the difference between ACoS and TACoS?

ACoS is ad spend against ad-attributed sales (campaign efficiency). TACoS is ad spend against total sales (business health) — falling TACoS means ads are building organic momentum.

How does Amazon PPC bidding work?

A second-price-style auction: your maximum bid and your listing’s conversion history set placement, and you pay roughly a cent above the next qualifying bid — not your max.

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