To serve the millions of FBA sellers on the platform, Amazon has set up roughly 200 fulfillment facilities throughout the world (110 in the US alone). Each fulfillment center has a daily capacity of millions of items, and each warehouse is roughly 800,000 square feet in size.
It’s difficult to hold a lot of stuff, to put it mildly. Fortunately, Amazon has a well-organized barcode and labeling system to reliably and precisely trace each goods in their warehouses. For effective monitoring and identification throughout the fulfillment process, each item has a distinct barcode.
In order to put products in these fulfillment centers optimally, Amazon also employs complex inventory placement algorithms and cutting-edge routing technologies.
Once an order is placed, these technologies automatically determine which FBA warehouse is nearest to the client and has the item in stock, reducing delivery time and improving the fulfillment process.
Due to the unique barcodes that each item has, merchants can easily keep track of their inventory levels and monitor the availability of their products in real-time, allowing them to better manage inventory and prevent item shortages and underutilized inventory.