Fulfilled by Amazon (FBA) is a service that allows Amazon Marketplace sellers to delegate storage, order picking, packaging, and shipping to Amazon. This service is especially beneficial for small-scale sellers who want to avoid the overhead costs and logistics of managing inventory and fulfillment.

To manage millions of products stored in its fulfillment centers, Amazon uses a unique labeling system. One essential part of this system is the FNSKU barcode—a unique identifier that distinguishes your inventory from others stored at Amazon's warehouses.

What Is an FNSKU and Why Is It Important?

The Fulfillment Network Stock Keeping Unit (FNSKU) is a barcode that uniquely identifies a product as belonging to a specific seller. Unlike the FBA Box Label, which helps Amazon identify incoming shipments, the FNSKU is placed directly on each product and ensures accurate tracking of seller-owned inventory.

Labeling Options:

• Amazon may fulfill your orders using the same product from another seller's inventory.
• This creates a commingled inventory situation, which carries the risk of counterfeit or low-quality items being sent to your customers.

• Ensures only your specific inventory is used to fulfill your orders.
• Recommended to maintain quality control and brand integrity.

What Is the FBA Label Service?

Labeling each item manually can be tedious, especially in large quantities. To simplify this, Amazon offers the FBA Label Service, which involves Amazon labeling your products for a small fee of $0.20 per item.

Eligibility Requirements:

To qualify for the FBA Label Service, your products must:

• Be in new condition
• Be classified as non-media items
• Not be restricted, prohibited, or high-value items
• Have a single scannable barcode (GCID, UPC, EAN, JAN, or ISBN)

Benefits of Using the FBA Label Service

• Time-Saving: Eliminate the need to manually label each item yourself.
• Convenience: Send products in bulk directly to Amazon as long as they have eligible manufacturer barcodes.
• Efficiency: Amazon ensures the correct FNSKU is applied, reducing errors in fulfillment.