I have had to delete a lot of incorrect and duplicate transactions. However, when the account updates, it puts everything that I deleted back and I have to start over.
I can share with you a way on how to not start over the incorrect downloaded transactions in QuickBooks Online, sandrea.
We can exclude unnecessary transactions instead of deleting them out. I would recommend excluding the duplicate or incorrect ones to keep them out from the other usable transactions. I'll provide you the steps on how to do it:
Go to Banking and select the Banking tab one more time.
In the For Review tab, tick the duplicate and incorrect transactions next to the Dates column.
Click the Batch actions drop-down arrow and select Exclude Selected.
Along with these steps, here's a screenshot for additional reference:
I'm adding two articles below that will help you about doing things in the Banking page: