More year end info in Microsoft Dynamics GP Year-End Release 2015: Inventory Control
Microsoft Dynamics GP Year-End Release 2015: Inventory Control – Microsoft Dynamics GP Community
Year-End & 1099Sales, Purchasing & InventoryMicrosoft & the GP Ecosystem
Archived post from 2015. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.