Let's make sure you'll be able to fix the duplicate sales transactions, chanching.
Sales transactions will only show as duplicate if you've entered them twice. You'll want to reach out to the Pay TraQer support team so they'll be able to check why is this happening. This way, they'll be able to guide you on what to do.
Furthermore, QuickBooks downloads automatically the latest bank transactions. For more information on how you can math and add transactions, I've added this article for your guide: Categorize and Match Online Bank Transactions In QuickBooks Online.
Let us know if you have any questions about your sales transactions. Remember, we're here to make sure you'll get the help you need.
