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

M3 Experience Designer: Buyer Workbench
Purchase Workbench serving as a base
Overview
M3 Buyer Workbench
A workbench for buyers showing purchase proposals and purchase orders, contact information, agreement information helping a buyer to work from a single screen.