The customer purchase order number entered in the PO Num field of an
invoice. If a report shows a list of invoices and you want to limit the report
to the invoice where you recorded a particular purchase order number, enter the
number in the PO Number field and click OK.
Note: This filter cannot find purchase orders created in QuickBooks.
To filter for QuickBooks purchase orders, select Transaction Type from the Filter scroll box, click the Transaction Type drop-down list, and then choose Purchase Order. Use the Number filter to limit the report to the purchase orders you want.