The orders are not filled based on the order. You can have a single order in 5 different shippments, or 5 orders in a single shipment. how many shipments is

The orders are not filled based on the order. You can have a single order in 5 different shippments, or 5 orders in a single shipment. how many shipments is largely governed by 1. What fulfillment center has the products you orders, not every fulfillment center has ever product all the time . 2. Your shipping preference, often times on a single order it will ask you if you want "fastest" shipping which can be shipping products from multiple fulfillment center, or "less trips" which may take longer so inventory can arrive the fulfillment center with the rest of your order 3. If it fulfilled by Amazon or Not... If you order 3 items only 1 of which is "fulfilled by Amazon" then it will come from 3 different places.