<strong>FNSKU (Fulfillment Network Stock Keeping Unit):</strong> <br /><br /> <span id="answer">Fulfillment Network Stock Keeping Unit or FNSKU refers to Amazon’s own barcode used for labeling products. This barcode allows Amazon to track and manage all of the product inventory in its warehouses. Every time Amazon moves inventory from one warehouse to another, they will scan the FNSKU label. </span>