What Is an FNSKU on Amazon?

What is an Amazon FNSKU?

FNSKU stands for Fulfillment Network Stock Keeping Unit. It is a unique identifier assigned by Amazon to each product unit stored in their fulfillment centers.

Why is FNSKU important for selling on Amazon?

The FNSKU enables accurate inventory tracking, efficient order fulfillment, prevents mix-ups of similar products, optimizes product listings, and provides valuable sales and demand insights.

How do I get FNSKU labels for my products?

You can easily generate FNSKU labels by logging into Seller Central, going to FBA Inventory, selecting "Print Item Labels", and attaching them to products before sending to Amazon.

Does every product unit have a unique FNSKU?

Yes, each product unit is assigned a unique FNSKU by Amazon for accurate inventory tracking from arrival at their fulfillment center to shipment to the customer.

Can I use the same FNSKU for multiple product listings?

No, you should not use the same FNSKU across multiple product listings, as this will create inventory tracking errors and issues with order fulfillment on Amazon.

Is FNSKU the same thing as ASIN?

No, FNSKU and ASIN are different product identifiers. FNSKU is unique per unit for fulfillment purposes while ASIN identifies the overall product itself in Amazon's catalog.

How does FNSKU help me manage FBA inventory?

FNSKU enables tracking stock levels, sales velocity, and making data-driven decisions about inventory replenishment and storage within Amazon's fulfillment network.