From a Convergence reminder, Leslie Vail looks at how to get the SOP order and POP document in the same order.
Dynamics Confessor Blogspot: SOP order and POP document in the same order
Sales, Purchasing & InventoryMicrosoft & the GP Ecosystem
Archived post from 2011. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.