Amazon FBA Tips & 3PL Insights

FNSKU vs. UPC Labels: The Complete Amazon Seller Guide You send in 500 units. Amazon flags 200 of them for label issues. Now you’re paying $0.15 per unit for Amazon’s labeling service — on top of your FBA fees — because the barcode on the box wasn’t what the system expected. That’s $30 you didn’t … Read more

Amazon & eCommerce Weekly News Roundup — Week 2 A seller called us last Tuesday. She’d just received a stranded inventory notice on 340 units and couldn’t figure out why. Turned out Amazon had updated a listing attribute requirement — quietly, no announcement — and her prep didn’t match the new spec. That’s $1,200 in … Read more

FBA Prep Center vs. Doing It Yourself: Which Makes More Sense in 2026? A seller in Columbus called us last spring after Amazon hit him with $1,847 in unplanned prep fees on a single shipment. He’d been prepping in his garage for two years, thought he had it dialed in. Turned out his poly bags … Read more

How to Choose an FBA Prep Center: 10-Point Checklist for Amazon Sellers A seller came to us after losing $4,200 in a single month — not from bad inventory decisions, but from unplanned prep fees at Amazon’s fulfillment centers. His previous 3PL was missing poly bag requirements on a grocery-adjacent product. Amazon caught it at … Read more

Amazon & eCommerce Weekly News Roundup — Week 13 A seller called us Tuesday. She’d just eaten $1,800 in Amazon unplanned prep fees on a 3,000-unit shipment — all because her supplier skipped poly bagging on items that needed it. Four cents a bag at the source. Fifty-two cents a unit at the FC. That’s … Read more

Case Study: How Ohio Amazon Sellers Cut Prep Costs by 40% with a 3PL A seller out of Columbus was spending $3.80 per unit to prep private label supplements in his garage. Poly bagging, labeling, bundling — he was doing it himself on weekends. When we ran the numbers together, his actual cost including his … Read more

Amazon & eCommerce Weekly News Roundup — Week 12 A seller shipped 2,000 units of a seasonal product last week. Referral fee change kicked in three days before delivery. His margin math was off by 2% across the entire shipment. That’s not a rounding error — that’s real money gone before a single customer clicked … Read more

Private Label vs. Wholesale FBA Prep: What’s Different and Why It Matters You’ve dialed in your sourcing strategy — but your prep process is still built around the wrong model. That’s a costly mistake more Amazon sellers make than you’d think. Private label and wholesale are fundamentally different businesses, and treating their FBA prep requirements … Read more