Amazon FBA has strict fulfillment requirements, and a shipment that does not meet them is rejected, hit with extra prep fees, or stranded at a receiving center. For sellers sourcing from China, the smartest move is to do FBA prep in China — labeling, bagging, wrapping, and carton preparation at the source, before the goods ever leave. This 2025 guide explains what FBA prep includes, Amazon's requirements, the cost advantage of prepping in China versus the US, and how to choose a prep service that keeps your shipments compliant.
What FBA Prep Includes
FBA prep is the set of physical tasks that make a shipment ready for Amazon's fulfillment centers. A complete prep service covers:
- FNSKU labeling: applying the unique Amazon barcode to each unit so Amazon can track it.
- Polybagging: bagging loose or multi-piece items with a suffocation warning.
- Bubble wrap: protecting fragile items from transit damage.
- Carton labels: applying the shipping label and box-content labels to each carton.
- Suffocation warnings: required text on polybags over a certain size.
- Palletization: stacking, wrapping, and labeling pallets for LTL/FCL shipments.
Amazon's Strict Prep Requirements
Amazon's FBA prep rules are detailed and enforced. Key requirements include the 50 lb (22.7 kg) carton weight limit — any carton over this is rejected or subject to a surcharge — precise FNSKU label placement and print quality, scannable barcodes, suffocation-warning polybags for bagged items, and proper expiration-date labeling for applicable products. Cartons must also meet dimensional and durability standards, and box-content information must match what Amazon expects. A single non-compliant carton can delay an entire shipment. For the official rules, always cross-check Amazon Seller Central, as requirements update.
Cost Comparison: China vs US Prep
| Prep task | China (per unit) | US (per unit) |
|---|---|---|
| FNSKU labeling | USD 0.10 – 0.25 | USD 0.30 – 0.50 |
| Polybagging | USD 0.10 – 0.30 | USD 0.40 – 0.70 |
| Bubble wrap (fragile) | USD 0.20 – 0.50 | USD 0.60 – 1.00 |
| Carton labeling & packing | USD 0.15 – 0.40 | USD 0.50 – 1.00 |
| Full prep per unit | USD 0.25 – 1.20 | USD 1.50 – 3.00 |
Ranges are indicative for planning. Actual costs depend on product complexity and volume. For a written quote, contact Yeatru Sourcing.
Why Do Prep in China, Not the US
Prepping in China rather than the US saves money and time. The per-unit cost is a fraction of US prep fees, and you avoid the extra freight leg of shipping un-prepped goods to a US prep center before they reach Amazon. More importantly, prep in China happens in the same warehouse as your QC inspection, so defective units are removed before they are labeled and shipped — meaning fewer Amazon returns, fewer negative reviews, and a lower risk of listing suspension. You also gain control: a single China warehouse handles QC, prep, labeling, and export in one continuous flow.
Quality Control Before the FBA Shipment
QC is the step that makes FBA prep worth doing in China. Before any unit is labeled or bagged, an AQL 2.5 inspection (about USD 120 per man-day) checks the batch against your golden sample. Defective units are pulled, the factory reworks or replaces them, and only passing units move to prep. Shipping defective units to Amazon is the fastest way to accumulate returns, A-to-z claims, and suppressed listings — so QC before prep is non-negotiable. See our sample guide for how to set the golden sample that QC measures against.
Common FBA Rejection Reasons
- Missing or mis-scanned FNSKU labels.
- Cartons exceeding the 50 lb weight limit.
- Polybags without suffocation warnings.
- Box contents not matching the box-content file.
- Expired or soon-to-expire date labels on applicable products.
- Insufficient protective wrap causing transit damage.
How to Choose an FBA Prep Service in China
- Co-located with your sourcing agent: one warehouse for QC, prep, and shipping means one accountable party.
- Up-to-date on Amazon rules: ask how they track Amazon's changing prep requirements.
- Photo proof of work: they should send photos of labeled, bagged, and packed cartons before shipping.
- Transparent per-unit pricing: itemized labeling, bagging, and packing fees, not a single vague lump sum.
- FBA shipping experience: they should know how to book FBA-delivery appointments and route to the right fulfillment center.
As a Yiwu-based sourcing agent, Yeatru Sourcing runs QC, FBA prep, and DDP shipping in one warehouse, so your goods flow from factory to Amazon-ready cartons under one roof.
