This is one to take note of as it’s going to impact your shipments during Q4 and the last thing you want is your inventory sitting on a pallet because either Amazon aren’t expecting it or it’s turned up later then anticipated. A delivery window is an estimated date range of when you expect your shipment to arrive at Amazon’s fulfilment centre. Providing accurate delivery windows helps Amazon prepare to receive your shipments so you can avoid processing delays. If you don’t provide accurate delivery windows, Amazon say that they may not be able to receive your inventory quickly, which could affect your ability to fulfil customer orders. What’s the difference between “ship date” and “delivery window”?The ship date is the date on which you send the shipment to the fulfilment centre.