The Boxem Docs

Labeling Preferences

An FNSKU (Fulfillment Network Stock Keeping Unit) is a unique identifier used to track your products through Amazon's fulfillment network. Withing your Amazon Seller account, there are options that should be checked to ensure your preferences are set correctly.

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Seller Labels

When shipping FBA products, you are responsible for printing and applying labels for your products before shipping them to Amazon. You'll want to ensure you know Amazon's labeling guidelines, linked here: Use Amazon barcodes to track inventory

If your barcode preference is set to Manufacturer barcode (the default setting) in Seller Central, Amazon will require you to provide FNSKU labels for products that don't qualify to use the manufacturer's barcode. For details on using the manufacturer barcode or steps to change your barcode preference, check out Amazon's help article: Using manufacturer barcodes with FBA virtual tracking

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Amazon Labels

With the FBA Label Service, Amazon prints and applies FNSKU labels to your products for a per-unit fee, currently $0.55/unit. You can enroll in this convenient service within your fulfillment settings in Seller Central.

Note: As of January 1, 2026, Amazon will no longer offer prep and item labeling services. For more information on the FBA Label Service, check Amazon's article: FBA Label Service