The key to a cost effective and efficient purchasing process requires automation of all processes. The process of all $3$ purchasing and receiving documents lining up so that the invoice can be paid without human intervention is called what? This end$-$to$-$end process in an ERP system is called "Procure to Pay"

Purchase Order $=$ Invoice $=$ Receiving Documents

Receiving Process

Purchase Order Release

Three Way Match

Supplier Approval Process