Amazon FBA Prep 2025: UK Packaging and Labelling Guide
- BestPrepUK
- May 13
- 5 min read
Selling on Amazon remains one of the most powerful ways to build an ecommerce business in the UK, but success depends heavily on getting the fundamentals right. One of the most critical areas is Amazon FBA Prep.
If your products are not correctly prepared before reaching Amazon’s fulfilment centres, you risk delays, extra fees, rejected shipments, or even account restrictions. These issues can quickly eat into profits and disrupt your growth.
This 2025 guide will walk you through everything you need to know about Amazon FBA Prep, including packaging requirements, barcode rules, shipping standards, and common mistakes to avoid. Whether you are new to selling or scaling an established operation, this guide will help you stay compliant and efficient.
What is Amazon FBA Prep and Why It Matters in 2025
Amazon FBA Prep refers to the process of preparing your products so they meet Amazon’s strict fulfilment requirements before being sent to a fulfilment centre.
This includes:
Labelling products with correct barcodes
Packaging items securely
Protecting products during transit
Meeting category specific preparation rules
In 2025, Amazon’s fulfilment network is more automated and stricter than ever. Even small errors can cause delays in check in, additional handling fees, or inventory being marked as unsellable.
For UK sellers, especially those importing goods or managing high volume stock, Amazon FBA Prep is not just a requirement. It is a key part of your operational strategy.
That is why many businesses choose to work with specialists like Best Prep UK, ensuring every unit is compliant before it reaches Amazon.
Amazon FBA Barcode Requirements Explained
Barcodes are essential for tracking your inventory throughout Amazon’s system.
Types of Barcodes
There are two main options:
Manufacturer Barcode (UPC or EAN)
Amazon uses this by default. However, your inventory may be mixed with other sellers offering the same product.
Amazon Barcode (FNSKU)
This is unique to your seller account and ensures your stock is tracked separately.
Best Practice for UK Sellers
In most cases, using FNSKU labels is recommended. It gives you full control over your inventory and avoids issues caused by commingling.
Key Barcode Rules
Every unit must have one scannable barcode
Barcodes must be easy to access and scan
Old barcodes must be covered or removed
Labels should be placed on flat surfaces
At Best Prep UK, barcode labelling is handled with precision to ensure every product meets Amazon’s standards.
General Packaging Requirements for Amazon FBA Prep
Amazon requires all products to arrive ready for sale with no additional preparation needed.
Core Requirements
Products must be fully packaged
Packaging must withstand a 3 foot drop test
Boxes must be rigid and six sided
Items must be secure and not exposed
Failing to meet these standards can result in damaged goods or rejected shipments.
For sellers importing from overseas, packaging quality at the supplier level is often inconsistent. This is where a UK based Amazon FBA Prep service becomes invaluable.
How to Prepare Different Product Types
Amazon has specific requirements depending on the type of product you sell.
Loose Products
Each unit must be contained within a secure package such as a poly bag or box. Items must not be loose.
Clothing and Textiles
Must be placed in transparent poly bags to protect against dust and damage. A suffocation warning is required for larger bags.
Footwear
Must be fully enclosed in boxes or bags with no exposed material.
Sold as Set Products
Bundles must be clearly labelled as a set with instructions such as “Sold as set. Do not separate.”
All internal barcodes must be covered, and a single FNSKU applied externally.
Poly Bag Requirements in 2025
Poly bags are widely used in Amazon FBA Prep but must meet strict guidelines.
Requirements
Minimum thickness of 1.5 mil
Transparent material
Fully sealed
Barcode must be scannable
Suffocation Warning Rules
If the opening is 5 inches or larger, a suffocation warning label is mandatory. The font size must meet Amazon’s specifications based on bag size.
Failure to comply can result in Amazon rebagging your products and charging additional fees.
Bubble Wrap and Protective Packaging
Certain products require extra protection during shipping and handling.
When to Use It
Fragile items
Heavy products
Delicate goods
Requirements
Fully wrapped and secured
Barcode placed on the outside
Must pass the drop test
Cutting corners on protective packaging often leads to damaged inventory and negative reviews.
Amazon FBA Inbound Shipping Requirements
Once your products are prepped, they must be shipped according to Amazon’s rules.
Box Content Information
You must provide:
Product details
Quantity per SKU
Units per box
This ensures smooth processing at fulfilment centres.
Packaging Shipping Boxes
Use strong, rigid boxes
Apply high quality tape
Include at least 2 inches of cushioning
Ensure contents do not shift
Box Limits
Maximum weight: 50 lbs
Maximum size: 25 inches per side
Exceeding these limits can delay or block your shipment.
Shipping Methods for UK Sellers
Small Parcel Delivery
Suitable for smaller shipments using carriers such as Royal Mail, UPS, or DPD.
Pallet Shipping
Used for larger shipments via freight. Each pallet requires proper labelling on all sides.
Choosing the right method depends on your volume and cost strategy.
Amazon Shipment Label Requirements
Labelling outer cartons correctly is essential.
Key Rules
Each box must have a unique FBA label
Labels must be clear and scannable
Place on flat surfaces
Do not place over seams
Both the FBA label and carrier label must be visible at all times.
Approved and Prohibited Packing Materials
Approved Materials
Bubble wrap
Kraft paper
Air pillows
Foam sheets
Prohibited Materials
Packing peanuts
Shredded paper
Styrofoam
Crinkle wrap
Using the wrong materials can lead to compliance issues and extra costs.
Where to Buy Amazon FBA Packaging Supplies in the UK
If you are handling Amazon FBA Prep yourself, you will need:
Shipping boxes
Poly bags
Labels and printers
Protective materials
You can source these from Amazon UK, packaging wholesalers, or local suppliers.
However, managing supplies and prep in house can be time consuming and costly.
Common Amazon FBA Prep Mistakes
Many sellers run into avoidable issues such as:
Incorrect barcode placement
Weak packaging
Missing suffocation warnings
Exceeding box limits
Poor shipment labelling
These mistakes can result in delays, fees, and lost sales.
Why UK Sellers Use Best Prep UK for Amazon FBA Prep
As your business grows, handling prep internally becomes less efficient.
Best Prep UK provides:
Professional labelling and packaging
Compliance with Amazon standards
Faster turnaround times
Scalable solutions for growing sellers
By outsourcing your Amazon FBA Prep, you reduce errors and focus on scaling your business.
Final Thoughts on Amazon FBA Prep in 2025
Amazon FBA Prep is one of the most important parts of running a successful Amazon business.
It directly affects how quickly your products go live, how customers receive them, and how profitable your operations are.
By following Amazon’s requirements and implementing best practices, you can avoid costly mistakes and build a more efficient supply chain.
If you want to streamline your operations and ensure full compliance, working with a trusted partner like Best Prep UK is a smart move.
FAQs
What is Amazon FBA Prep
It is the process of preparing products to meet Amazon’s packaging and labelling requirements before sending them to fulfilment centres.
Do I need FNSKU labels
Yes, unless you are using manufacturer barcodes and accept shared inventory.
What happens if I do not comply
Amazon may reject your shipment, charge fees, or mark inventory as unsellable.
Can I do Amazon FBA Prep myself
Yes, but it requires time, space, and strict adherence to Amazon guidelines.
Is outsourcing FBA Prep worth it
For most UK sellers, outsourcing improves efficiency, reduces errors, and supports business growth.
Comments