This idea has been merged into another idea. To comment or vote on this idea, please visit S1-I-280 Extra box to put a reference to what the invoice is about as well as a box for Purchase Order Numbers.
Can you add a field in the system to include the customers PO number on the Order? We use the order feature to do estimates in construction. The customer then provides us with a PO number. This has to be on the invoice.
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