Selling on Amazon through Fulfillment by Amazon (FBA) can significantly simplify logistics, storage, and shipping. However, to enjoy these benefits without delays or penalties, sellers must strictly follow Amazon FBA labeling requirements. Incorrect labeling is one of the most common reasons for inventory rejection, additional fees, or shipment delays. This guide explains everything you need to know to stay compliant and avoid costly mistakes.
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What Are Amazon FBA Labeling Requirements?
Amazon FBA labeling requirements are a set of rules that ensure each product and shipment can be properly identified, tracked, and handled inside Amazon’s fulfillment centers. Labels help Amazon employees scan items quickly, assign them to the correct seller, and ship the right product to customers.
Every product sent to an Amazon FBA labeling requirements warehouse must be clearly labeled, scannable, and accurate. Depending on your setup, you may label products yourself or pay Amazon to label them for you.
Product Labeling Requirements
1. FNSKU Label (Amazon Barcode)
The FNSKU (Fulfillment Network Stock Keeping Unit) is the most important label for Amazon FBA Services. It links a product directly to your seller account.
- Each individual unit must have one unique FNSKU
- The FNSKU must be clearly visible and scannable
- Any existing manufacturer barcode (UPC, EAN, ISBN) must be covered or removed
- The label should not wrap around edges or curves
If Amazon cannot scan the FNSKU, your inventory may be relabeled at your expense or rejected.
2. Barcode Quality Standards
Amazon has strict barcode quality standards:
- Minimum size: 1 inch x 2 inches
- High contrast (black on white background)
- No smudges, wrinkles, or fading
- Printed using high-quality ink or thermal printing
Low-quality barcodes slow down processing and can result in delays.
3. Product Information Labels
In addition to the FNSKU, products may require:
- Product name
- Brand name
- Variation details (size, color, model)
- Expiration date (if applicable)
This information helps prevent mix-ups and improves warehouse accuracy.
Packaging and Prep Labeling
1. Suffocation Warning Labels
If your product is packed in poly bags, Amazon requires a suffocation warning label unless the bag opening is smaller than 5 inches.
The warning must be:
- Clearly visible
- Printed in a readable font
- Written in English (and other languages if required)
2. Expiration Date Labels
Products such as food, supplements, cosmetics, and pet supplies must have expiration dates.
- Format must be MM-DD-YYYY or MM-YYYY
- Printed or labeled directly on the product or packaging
- Covered labels or incorrect formats can lead to disposal
3. Set and Bundle Labels
If you sell product sets or bundles, they must include:
- A label stating “Sold as Set” or “Do Not Separate”
- FNSKU label on the outer package
This prevents Amazon from separating bundled items.
Carton and Shipment Labeling Requirements
1. Shipping Labels
Every shipping carton must have:
- Two identical Amazon shipment labels
- Labels placed on different sides of the box
- Labels that are not folded, covered, or damaged
Each label includes a scannable barcode used to track your shipment.
2. Carton Contents Accuracy
Amazon requires sellers to provide accurate carton content information in Seller Central. Incorrect data can cause:
- Delayed check-in
- Inventory misplacement
- Additional fees
Always ensure that the items inside the carton match the shipment details.
Common Labeling Mistakes to Avoid
Many sellers face issues due to simple mistakes, including:
- Forgetting to cover manufacturer barcodes
- Using low-resolution printers
- Placing labels over seams or corners
- Sending unlabeled units to FBA
- Incorrect expiration date formats
Avoiding these errors can save time, money, and frustration.
Amazon Labeling Service: Is It Worth It?
Amazon offers a Label Service where they label products for a per-unit fee. This option may be useful if:
- You’re new to FBA
- You don’t have labeling equipment
- You ship directly from a supplier
However, labeling products yourself is usually more cost-effective for experienced sellers. Contact Us Now and get affordable services.
Final Thoughts
Understanding and following Amazon FBA labeling requirements is essential for smooth inventory processing and successful selling. Proper labeling ensures faster check-ins, fewer errors, and better customer satisfaction. By paying attention to FNSKU labels, barcode quality, packaging rules, and shipment labels, you can avoid unnecessary fees and delays.
Always review Amazon’s latest guidelines in Seller Central, as labeling policies can change. Staying compliant not only protects your inventory but also strengthens your overall FBA business
