This template application can be used as is by someone who works with planned purchase orders in M3, but it can also serve as a base for custom development of Experience Designer applications.
M3 Experience Designer: Planned Purchase Order Workbench
Summary

M3 Experience Designer: Planned Purchase Order Workbench
Planned Purchase Orders for Commodities serving as a base
Overview

M3 Planned Purchase Order Workbench
A workbench for buyers showing purchase proposals with related information like planning data, inventory, material plan. From the application you can create, change, delete, release planned purchase orders.