Hi,

Is it possible to import the same invoices twice into QuickBooks and system will allow this to happened?

Especially when those invoices have the same numbers and amounts.

Is there any way I can get a report from QuickBooks to check if I imported the same spreadsheet twice or was this a QB error. 

How can I prevent this from happening in the future? I'm using the function terms: End of the Month.

Thank you.