Make one sale first
Learn how to photograph, list, answer a buyer, complete a transaction, and review the costs.
Track the money
Record what you paid, what you sold it for, fees, shipping, supplies, returns, and other costs. Separate personal and business finances when the activity becomes a real business.
Check current requirements
Taxes, registration, permits, and marketplace account requirements can depend on your location and activity. Use current official government and marketplace sources or a qualified professional.
Scale a pattern, not a guess
Find an inventory source you can repeat. Test a single item. Confirm demand and profit. Then grow carefully.