Amazon PPC (pay-per-click) is Amazon's advertising system: you bid on shoppers' search terms or on products, your ad appears in search results and on product pages, and you pay only when someone clicks. Profitable PPC comes from three things working together: a campaign structure that separates discovery from proven keywords, bids set against your break-even ACOS, and a weekly routine of moving winning search terms into exact match and cutting the ones that waste spend.
What are the Amazon PPC ad types?
Sponsored Products promote a single listing in search results and on product pages, and are where most sellers start. Sponsored Brands show your logo, a headline and several products (or a video) at the top of search, and need Brand Registry. Sponsored Display reaches shoppers on and off Amazon based on what they viewed or bought.
All three are bought in the Amazon Ads console. Amazon DSP is a separate, programmatic product for larger display and video budgets.
How does the auction decide what you pay?
Every ad placement is auctioned. Your bid, any bid adjustments you have switched on, and how relevant your listing is to the search decide whether you win and what the click costs. You pay per click, never per impression, on Sponsored Products.
You control cost with three settings: the bid on each keyword or target, the bid strategy (fixed, down only, or up and down), and placement adjustments that bid more for top-of-search or product pages.
How should campaigns be structured?
Keep discovery and scaling apart. Automatic and broad-match campaigns find new search terms; exact-match campaigns spend on terms that have already proved they convert. When both live in one campaign, the data blurs and budget drifts to whatever is cheapest, not whatever is profitable.
Product targeting (bidding on competitors' listings or categories) runs in its own campaigns too, because it behaves differently from keyword targeting.
How do you find winners and cut wasted spend?
The search term report shows what shoppers actually typed before clicking your ad. Each week, terms that convert below your break-even ACOS move into exact match (harvesting), and terms that spend without selling are added as negatives so you stop paying for them.
Judge a term only once it has enough clicks to mean something; pausing on two or three clicks throws away keywords that would have worked.
Which numbers tell you if PPC is profitable?
ACOS is ad spend divided by ad sales. It only means something next to your break-even ACOS, the point where ad spend eats your whole margin. TACOS divides ad spend by total sales, which shows whether ads are lifting organic sales too. ROAS is the same ratio as ACOS, turned upside down.
Impression share and share of voice show how much of the available search traffic you are winning, and new-to-brand shows how many buyers are new customers.
What if campaigns stop working?
Most PPC problems are one of four: no impressions (the ad isn't eligible or the bid can't win), clicks without sales (usually a listing or price problem, not a bid problem), a sudden ACOS rise (a competitor, a lost Buy Box or a seasonal shift), or a rejected ad (a policy issue in the creative or the listing).
Does PPC help organic ranking?
Indirectly. Sales that come through ads still count towards a product's sales history for that search term, which is part of how Amazon ranks listings. But ads cannot rank a listing for a keyword it isn't indexed for; that part is listing SEO.
How long does it take, and should you run it yourself?
Expect the first few weeks to be about gathering data, and meaningful efficiency gains after a couple of months of weekly optimization. Budget should follow proven efficiency, not a fixed percentage of revenue.
Running PPC yourself works if someone has a few hours every week for it. An agency makes sense when nobody does, or when spend is large enough that small efficiency gains pay for the fee.
Or read how the ongoing work runs before you book: Amazon PPC management.