An online merchant runs a store that exists only on the internet: you pick products, set prices, list them, take payments, ship orders, answer customers and keep the books. Nobody hands you a syllabus, so this roadmap builds it in the order the work happens. First you learn how money flows in one product (unit economics). Then you build a real store. Then you grow it with data and systems. Everything here is free: official docs, free tiers and open courses. No license is legally required to sell online, but you must collect sales tax where required and follow marketplace rules. Employers hire
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Every stage from beginner to expert, with lessons, practice drills, projects, interview questions and free resources. Free with a Rolearch account.
Stage 1 of 3 · about 8 weeks
Understand how an online sale works from end to end and prove it by listing and selling a few real items.
Unit economics and pricing math
Most new sellers fail because they sell at a loss without noticing. Before anything else you must know what each sale truly earns you.
Sourcing and product selection
Your products decide your ceiling. A good product has steady demand, a margin you can afford and low return risk.
Listing writing and product photography
Shoppers cannot touch the item, so your words and photos do the selling. Clear listings also reduce questions and returns.
Orders, payments and shipping basics
Taking money and delivering the item correctly is the core of the job, and mistakes cost you money and reviews.
Then 2 more stages (about 36 weeks in all) with lessons, drills, projects, 6 interview questions with strong answers and free resources.