What is 3-Way Matching?
In this section, we explain what happens to Invoices that match to a Purchase Order.
![](https://learn.purchaseplus.com/hubfs/Knowledge%20Base%20Import/static.intercomassets.comavatars70242square_128MB_Favicon-1592376940-Mar-11-2024-06-15-23-6095-AM.png)
Note - You are still required to Receive Purchase Orders even if a Paperless Invoice has been received. See: Receive Goods against a Purchase Order
Invoices (manual or electronic) that match a Purchase Order will automatically go through the 3-way matching process between the Purchase Order, Goods Received Note, and the Invoice.
If all three documents match, the Invoice will go straight to the Reconciled Invoices section - ready to be processed for payment by the Accounts Department.
If the documents donβt match, the Invoice will be 'Flagged' for further approval. See: Approve Flagged Invoices
The diagram below explains how the 3-way match works in more detail.
![](https://learn.purchaseplus.com/hubfs/Knowledge%20Base%20Import/downloads.intercomcdn.comio59413183dad9aaadfeaeaa502e119f48Electronic%2BInvoicing%2Bin%2BPurchase%2BPlus-page-001-3.jpg)