Most people think their first Amazon FBA product flops because of bad ads or weak listings. After watching hundreds of first-time launches, that's rarely the real problem.

The real killer: skipping supplier vetting to save two weeks.

Here's the pattern I see over and over:

• Find a product with decent search volume on a research tool

• Message 2-3 suppliers on Alibaba, pick the cheapest quote

• Order inventory without a paid third-party inspection

• Product arrives with inconsistent quality, wrong dimensions, or missing safety certs

• Listing gets buried in returns and bad reviews before it ever ranks

What actually separates sellers who make it past product #1:

1. Vet 5+ suppliers minimum, not 2-3. Ask for their business license, request references from other Amazon sellers (not just any client), and check how long they've shipped to the US specifically.

1. Never skip a pre-shipment inspection, even on a "safe" first order. A $150-300 inspection fee is nothing compared to a $8,000 container of defective stock.

1. Avoid saturated niches with fake "low competition." If a research tool shows low competition but the top 10 listings all have 2,000+ reviews, that's not low competition — that's a mature market with tools blind to established brand loyalty.

1. Order samples from your top 2 suppliers before committing to a full run. Compare them side by side. If a supplier resists sending a sample, that's your answer.

The businesses that survive their first product aren't the ones with the best marketing — they're the ones who treated sourcing like the highest-risk part of the process, because it is.

What's been your experience vetting suppliers? Curious what red flags others have caught early.