DEFINITION of 'Backorder'
An order for a good or service that cannot be filled at the current time due to a lack of available supply. The higher the number of items backordered, the higher the demand for the item.
BREAKING DOWN 'Backorder'
Backorders are an important factor in inventory management analysis. If a company consistently sees items in backorder then this could be taken as a signal that it is running too lean - and that it is losing out on business by not providing the products demanded by its customers.