Amazon Seller Dictionary

This dictionary is designed to help Amazon sellers quickly understand the most important terms used inside Amazon’s ecosystem.

Online Arbitrage (OA)

Online Arbitrage is the practice of buying products at lower prices from one online marketplace and reselling them at a higher price on another platform, leveraging price differences for profit.

What is Online Arbitrage?

Online Arbitrage (OA) involves sourcing discounted or clearance products from websites (retailers, marketplaces, overstock sites) and reselling them on Amazon at a markup, usually via FBA for Prime shipping.

Advantages of Online Arbitrage

  • Low barrier to entry – no need for suppliers or branding
  • Fast to start with small capital
  • Access to branded products with existing demand
  • Opportunity to find deep discounts and deals
  • Scalable with tools and software

Challenges & Risks in OA

  • High competition and fast-changing prices
  • Need for ungating in restricted categories
  • Risk of account suspension if sourcing violates policies
  • Time-intensive product research and listing
  • Potential for returns due to condition issues

Best Practices for Online Arbitrage Success

  • Use deal-finding tools and browser extensions
  • Calculate fees, shipping, and profit accurately
  • Focus on lightweight, high-margin, non-gated items
  • Build account health with excellent metrics
  • Diversify sources to avoid dependency
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