If you export out your contact information from the accounts page, you can see if there's any sold to contacts that do not have country or state filled out (if US or Canada customers).
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Answer: You can run a report that will list out the invoices in draft status by going to the data exports view under 'insights'. Select the 'invoice' data source, include the relevant fields you'd like to look at (balance, due date, etc.) and then filter on 'status' = 'draft'.
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