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Purchase Order vs Invoice-difference between Purchase Order and Invoice

This page compares Purchase Order (PO) vs Invoice and mentions difference between Purchase Order (PO) and Invoice.


Purchase Order Invoice
This is a document which is issued by Buyer to Seller. This is a document which is issued by Seller to Buyer.
The document lists out goods or services required by the Buyer from the supplier. The document mentions payments owe by supplier from the buyer based on goods sold or services provided.
The PO is generated before invoice is sent to the buyer. The invoice is generated after PO has been placed and items have been delivered/supplied.
It defines contract of sale. It marks confirmation of the sale.
Prepared by Buyer Prepared by Seller so that they can receive the payments.

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