Whether orders are received and released consistently, or released from a blanket purchase order, this metric measures the percentage of ship- from-stock orders shipped within 24 hours of order "release”. Make-to-Stock schedules attempt to time the availability of finished goods to match forecasted customer orders or releases. Orders that were not shipped within 24 hours due to consolidation but were available for shipment within 24 hours are reported separately. In calculating elapsed time for order fill rates, the interval begins at ship release and ends when material is consigned for shipment.

Calculation: [Number of orders filled from stock shipped within 24 hours of order release] / [Total number of stock orders].

Note: The same concept of fill rates can be applied to order lines and individual products to provide statistics on percentage of lines shipped completely and percentage of products shipped completely.