Hi Exporter1000,
Thanks for reaching out to us here. Having duplicate transactions, can be rather time consuming, when preparing to reconcile your accounts. QuickBooks Online enables you to review and exclude duplicate entries. It's important to note that when you choose to void/delete a transaction, this cannot be undone. Any transactions deleted in error, can cause a negative impact on your books.
I suggest taking a look at your bank statement on your bank's website, to review possible duplicate transactions there. If the statement indicates duplicate transactions, your automatic upload to QuickBooks was accurate and aligned with your bank. However, if no duplicates are found, you'll want to remove the duplicate entries from your bank feed in QuickBooks Online. Here's how;
1. Open Banking, then Transactions
2. From the Review tab, checkmark the box beside all duplicated entries
2. Select Exclude.
Note: You can permanently delete the transactions from the Excluded tab by selecting all items and then hit Delete. Please be advised that this process is irreversible and any transactions deleted in error will need to be recreated manually.
Feel free to reach back out with other questions. We would be happy to help!