Four-Way Matching

4WM is the IV practice of matching four documents prior to approving payment of a supplier invoice:

Purchase Order or Scheduling Agreement
GR
Inspection Report or COA
Supplier Invoice

Generally data elements include: Grade, Volume (quantities), Price, Condition and other terms such as penalties for late delivery, discounts for early delivery or payment.

Hierarchy

ID	Name	Level	x
IV	Invoice Verification	1	IV
4WM	Four-Way Matching	2	4WM

Process(es)

ID	Name	Level	x
S107	Approve Payment	3	S107
S208	Approve Payment	3	S208
S309	Approve Payment	3	S309

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