An Amazon seller once had an entire shipment rejected because the suffocation warning labels on the poly bags were printed a fraction of an inch too small. The inventory sat in limbo for two weeks, the fees stacked up, and the listing went out of stock during a peak sales period. The lesson was expensive and unforgettable.
Amazon’s requirements are not suggestions. They are strict rules that get enforced at the receiving dock. Every unit that enters a fulfillment center gets checked against a list of compliance standards. An FBA prep service exists to make sure those checks happen before the shipment ever leaves the warehouse.
FBA Prep Packaging and What Amazon Actually Requires
The rules around FBA prep packaging are detailed and specific. Every product that enters an Amazon fulfillment center must be labeled and packaged according to guidelines that cover everything from poly bag thickness to barcode placement. A single mistake can mean a rejected shipment and a seller account that starts accumulating warning flags.
Professional Amazon FBA prep services handle these requirements daily. They know the standards inside and out, and they catch problems before inventory ever reaches Amazon.
For a broader look at what prep centers do, this guide on what FBA prep services are covers the full scope of the work.
Amazon FBA Packaging Requirements Guide

Amazon FBA Suffocation Warning Label Requirements and Why They Get Shipments Rejected
The Amazon FBA suffocation warning label requirements are one of the most common reasons for rejected inventory. Any poly bag with an opening larger than five inches must carry a suffocation warning. The warning must be printed in a specific font size and placed in a specific location on the bag.
Professional Amazon FBA prep services use pre-printed bags that meet Amazon’s specifications or apply labels that have been tested and approved. The rejections that plague DIY sellers become a non-issue.
For a look at how prep centers operate, this guide on what an FBA prep center does covers the full workflow.
Hazmat and Expiration Data FBA Prep Rules and What Sellers Often Miss
The hazmat and expiration data FBA prep rules trip up sellers who deal in certain product categories. Items containing flammable or pressurized materials require dangerous goods documentation. Products with expiration dates must be marked clearly and meet minimum shelf life requirements.
Keach Fulfillment handles FBA prep with precision and compliance.
Find out how.A professional Amazon FBA prep service identifies these products on the way in and handles the documentation and labeling before the shipment goes out. Catching compliance issues at the prep center prevents the delays and fees that happen when Amazon catches them at the receiving dock.
Amazon Barcode Scannability and FNSKU Requirements and Why Precision Matters
The standards for Amazon barcode scannability and FNSKU requirements leave little room for error. Every FNSKU label must be scannable and correctly placed on the product packaging. Labels that are wrinkled or covered by tape or positioned over a curved surface may fail to scan.
Professional Amazon FBA prep services test barcodes before products leave the warehouse. A quick scan verifies that every label will read correctly when it arrives at Amazon. The few seconds of verification prevent days of delay and the costs that come with rejected inventory.
Compliance That Keeps the Business Moving
Amazon’s requirements do not get less strict as a business grows. They get more demanding. The right prep partner handles the compliance and the packaging and the documentation so the seller can focus on building something bigger.
We provide FBA prep services that take the stress out of selling on Amazon. Inventory gets prepared correctly, shipments arrive on time, and the seller account stays in good standing. The business grows, and the compliance headaches disappear.
Let Keach Fulfillment prepare your inventory for Amazon.
See how much smoother selling can be.