Order Number on the Invoice in Ireland
An order number is unique number assigned to each order when it is placed. The seller’s ordering system will generate this unique code to help track and manage orders effectively. The order number becomes more significant when it comes to e-commerce as the buyers more frequently use this number to track their shipment.
The PO number on the invoice is written to reflect the source of the order that is fulfilled by the seller. In other words, the PO number on the invoice enables the seller to compare the invoice and the details of the order placed by the customer (PO). It helps to ensure that the customer is billed for the order for which they have placed.
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