Glossary
Amazon seller terms. No fluff.
The concepts that matter for PPC, pricing, inventory, and automation — explained for operators, not textbooks.
ACoS (Advertising Cost of Sales)
The ratio of ad spend to ad revenue on Amazon. Lower ACoS means more efficient advertising.
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Amazon PPC
Pay-per-click advertising on Amazon via Sponsored Products, Sponsored Brands, and Sponsored Display campaigns.
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Amazon Repricer
Software that automatically adjusts product prices to compete for the Buy Box or maximize profit margins.
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Buy Box
The featured offer section on an Amazon product page where most purchases happen. Winning it depends on price, fulfillment, and seller metrics.
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Contribution Margin
Revenue minus all variable costs (COGS, fees, shipping, advertising). The real profit metric for Amazon sellers.
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Demand Planning
Forecasting future product demand to optimize inventory levels, reorder timing, and supply chain decisions.
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Dynamic Pricing
Automatically adjusting product prices based on real-time demand, competition, and inventory signals.
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Inventory Velocity
The rate at which inventory sells through. Used to optimize reorder timing and pricing strategy.
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Negative Keywords
Search terms you exclude from PPC campaigns to prevent wasted ad spend on irrelevant clicks.
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TACoS (Total Advertising Cost of Sales)
The ratio of total ad spend to total revenue, including organic sales. Measures how advertising affects the whole business.
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