back-order meaning refers to an item that is temporarily out of stock but is still available for purchase. When a customer orders a product on back-order, the item will be shipped as soon as it becomes available again. Back-order status typically occurs when demand for a product exceeds the available supply or when there are delays in the manufacturing or restocking process. While back-ordering can be a convenient way to secure a product, customers should be aware of the expected wait time for the item to be shipped. Retailers often provide updates on back-order status and estimated shipping dates.