4D Fulfillment
Amazon FBA Prep

FBA prep done right the first time

FNSKU, polybag, bubblewrap, expiration checks, and bundle prep — Amazon-compliant prep that never gets bounced from Amazon receiving.

0

Bounce-Backs

24h

Prep Turnaround

FBA

Compliant

Amazon FBA, done the right way

Prep that meets Amazon's spec — every time

Amazon's prep requirements change often, and one wrong label or missing suffocation warning can mean rejected inbound shipments and stranded inventory.

Our team preps thousands of SKUs every week to Amazon's latest spec — FNSKU labels applied correctly, polybags with suffocation warnings, bubble wrap for fragile items, and expiration dates verified before shipment.

FNSKU labels

Generated, printed, and applied to every unit.

Polybag & seal

With suffocation warnings on every poly bag.

Bubble wrap

Fragile items wrapped to Amazon's protection spec.

EXP date checks

Verified for consumables, removed if too close.

What's included

Every prep step Amazon requires

From inbound receiving to outbound shipment to FBA — we handle every step.

FNSKU application

Pulled from your seller account, printed, applied per Amazon spec.

Polybagging

Per-unit polybag with mandatory suffocation warning text.

Bubble wrapping

Fragile items double-wrapped for inbound shipping protection.

Bundle & multipack

Per-unit assembly into bundles or multipacks before labeling.

Expiration verification

Date checks for any consumable or perishable SKU.

Hazmat prep

Hazmat-compliant prep, labeling, and shipping documentation.

Inbound shipment plans

We generate the Amazon inbound shipment plan for you.

Carton labeling

Box-level labels printed and affixed for Amazon receiving.

QC before shipping

Final compliance check before any pallet leaves the dock.

How it works

From inbound to FBA in 4 steps

1

Receive & inspect

Inbound counted, inspected, and slotted within 24 hours.

2

Prep to spec

FNSKU, polybag, bubblewrap, bundle — exactly per Amazon spec.

3

QC & shipment plan

Compliance check + Amazon shipment plan generation.

4

Out to FBA

Carton-labeled, pallet-built, shipped to Amazon — tracked.

Built for

Built for Amazon-first brands

Private-label Amazon sellers
Wholesale & arbitrage sellers
Online & retail arbitrage (OA/RA)
Multi-SKU brands restocking weekly
Hazmat-classified inventory
Sellers tired of bounce-backs

We ship to every channel your customers buy from

Amazon
Etsy
eBay
TikTok Shop
Shopify
Walmart
Target
FAQ

Questions, answered

The things sellers ask us most often — if yours isn't here, our team will reply within one business day.

  • Most sellers are live within 3–5 business days. We send an inbound shipping address and labeling spec, you ship your inventory, and we receive it within 24 hours of arrival.

Tired of inbound rejections?

Let your prep stop being a bottleneck

Tell us your SKU volume and Amazon categories — we'll quote you a prep operation that never bounces.