Concrete warning signs that a product's unit economics won't support a real business: a retail price ceiling under $20, dimensional weight exceeding actual weight (inflating FBA fees), item weight over 1.5 lb, and a return rate of 20-30%+. Any of these can quietly erase margin even when demand and competition look favorable — "if your profit is only $2, you're not launching a business, you're launching a charity."
This is the profit leg of the Five Reasons Amazon FBA Products Fail and sets the floor for the margin threshold in the Safe Niche Threshold Checklist.
Dimensional weight exceeding a product's actual weight is a hidden fee trap: it triggers higher FBA fees regardless of how physically light the item is. Checklist thresholds: price ceiling under $20, dimensional weight > actual weight, item over 1.5 lb, and 20-30%+ return rate — any single triggered flag is reason to reconsider the product.
High revenue on a listing does not imply high margin — X-Ray and similar tools report top-line sales, not profit. Before committing to a product, run its real sourcing cost (pulled from actual Alibaba quotes, not estimates) through a profitability calculator (e.g. Helium 10's, or a free equivalent) to confirm true margin. This reframes the price floor in Safe Niche Threshold Checklist: high-ticket products can be viable at lower unit-sales volume than cheaper products, because their margins are usually higher, so fewer units are needed to hit the same revenue/profit goal.
Из тем: Product Research & Validation