Late Shipment Rate
Amazon measures each seller’s performance using customer metrics in a variety of categories that assess sellers’ timely fulfillment of orders, responsiveness to buyer feedback, buyers’ cancelled orders, and so on. One significant measure is the seller’s late shipment rate.
Method of Calculation
When an order is confirmed to be overdue for shipping by three or more days, it is considered to be late. The number of orders that are confirmed to be late divided by the total number of orders in the given time period provides the late shipment rate for that time period.
Importance of the Late Shipment Rate
Buyers may view the status of their orders online, and late shipment detracts from the positive buying experience that Amazon seeks to provide. Sellers are therefore encouraged to make sure that their late shipment rate is less than four percent.
Note: When sellers enable their accounts for Charge When You Ship, the details of the late shipment rate appear on the Customer Metrics page in their Amazon account.