Why FBA sourcing isn't just regular sourcing
Sourcing a product for Amazon FBA carries requirements a general import order doesn't: the carton has to arrive already labeled and packaged to Amazon's exact specification, or it gets rejected, relabeled at a fee, or stuck in receiving limbo at the fulfillment center. Getting this wrong after the goods have already left China is expensive and slow to fix — the compliance work has to happen at the supplier or a prep center, before freight moves.
The three things that make FBA sourcing distinct: product-level labeling (FNSKU barcodes, not just a generic UPC), packaging that meets Amazon's prep requirements (poly-bag warning labels for choking hazards, suffocation warnings on bags over 5 inches, no loose bundles without approval), and a supply chain built around Amazon's own receiving windows and lead-time math, not just "goods arrive whenever."
What is the complete step-by-step method?
- FNSKU labeling capability. Can the factory print and apply your FNSKU barcode to each unit before it leaves China, or does labeling need to happen at a separate prep center? Supplier-side labeling is cheaper per unit but requires sending Amazon-generated barcode files ahead of production.
- Poly-bag and packaging compliance. Amazon requires suffocation warning labels on poly bags over 5 inches, and any loose product (not in a box) must be bagged. Confirm the supplier is packaging to spec, not their own default.
- Carton specifications. Amazon enforces maximum carton weight (typically around 22.5kg / 50lb for standard-size, higher for oversize) and requires shipping labels on two sides. Cartons that exceed spec get relabeled at your cost or refused.
- Small-batch flexibility. FBA sellers testing a new SKU often want a few hundred to about a thousand units first, not a full MOQ run. Confirm the supplier will quote and produce at test-order volume before scaling.
Freight into Amazon's network
Three common paths get goods from a Chinese factory into Amazon's fulfillment network: direct-to-FC (freight forwarder delivers straight to the fulfillment center Amazon assigns, fastest but least flexible if Amazon splits the shipment across multiple centers), via a domestic 3PL or prep center (goods clear customs and land at a prep facility first, where labeling, bundling, or inspection can still happen before final FBA delivery), and via a bonded warehouse (useful for sellers managing duty timing or holding safety stock outside Amazon's system).
Lead-time planning has to stack every stage: production time, quality inspection, main freight transit, customs clearance, and then Amazon's own receiving queue — which during peak season or after a policy change can add days to weeks beyond a normal delivery. Sellers who plan freight timing only around "when the ship arrives" and not "when Amazon actually checks the inventory in" are the ones who run out of stock despite ordering early. See the full FBA shipping requirements guide for the shipping-plan and carton mechanics in detail.
Compliance mistakes that cause receiving problems
- Wrong or missing FNSKU on individual units. Commingled or mislabeled inventory can be matched to the wrong listing, or rejected outright at receiving.
- Carton labels that don't match the shipment plan. Amazon assigns specific FC destinations per carton in the shipping plan — a factory that reuses old labels or misprints a destination code causes routing errors.
- Oversize or overweight cartons. Triggers automatic oversize fees or rejection, often discovered only once the shipment is already at the dock.
- No contingency for a failed inspection. If a pre-shipment inspection catches a defect rate above your AQL after the ship date is already booked, sellers without a buffer week lose their freight slot.
Building the FBA supply chain from the China side
The riskiest handoffs in FBA sourcing — FNSKU accuracy, carton compliance, and the inspection-to-ship-date buffer — all sit on the China side, where a buyer overseas has the least visibility. LifaSourcing.com coordinates supplier search, FBA-compliant packaging and labeling, pre-shipment inspection, and freight through to your fulfillment center, through inspection coordination and shipping coordination — so cartons arrive ready for Amazon, not stuck in receiving.
Going deeper: timeline, process, and cost breakdown
This page covers what's strategically different about FBA sourcing. For the full step-by-step process, a complete production-to-receiving timeline, and a cost breakdown across the whole supply chain, see the companion guide: Amazon FBA Sourcing Complete Guide.