Purchasing & suppliers
Blanket Purchase Order
By the Supply Chain Manager team · Updated October 16, 2026
A blanket purchase order is a longer-term agreement covering repeated purchases from one supplier, with deliveries released against it over time.
It typically fixes prices and terms, and sometimes a total quantity or spend, for a period such as a year. Individual deliveries are then called off with releases instead of a full PO each time.
Blanket orders work best when demand is steady enough that the total commitment is low risk, and when the supplier gives something in return, such as fixed prices, priority allocation or a shorter lead time on each release. Each release should still be sized from current demand, not a fixed monthly quantity agreed at the start.
Blanket PO example
Illustrative: a blanket PO for 12,000 units of packaging over 12 months at a fixed price, with monthly releases of about 1,000 units adjusted to actual demand.
Why blanket PO matters for distributors
Blanket orders cut paperwork and lock in pricing for steady, high-volume items. They also give suppliers visibility to plan, which can shorten lead times.
Common blanket PO mistakes
- Committing to a total quantity based on an optimistic forecast.
- Losing track of how much of the blanket has been released.
Examples on this page use made-up round numbers to show the calculation. They are not benchmarks or results from real businesses.