Thank you for your inquiry. I would like to address your concerns and provide some recommendations.
You can undo transactions, but it can take a lot of time and could result in errors when you reconcile your transactions again.
If you have the bank statements for those months, you can manually undo each transaction. However, I suggest creating a backup and printing out your previous reconciliation reports before undoing anything. This way, you have historical data available if you need it.
To learn more, please visit this resource: Back up your QuickBooks Desktop company file.
A better way is to fix specific problems from each month one at a time. This is called mini reconciliations, rather than undoing everything at once.
Furthermore, I highly recommend working with an accountant during this process to ensure everything is handled correctly and that you are effectively utilizing QuickBooks Desktop's tools. This will help you keep accurate records and avoid more errors.
If you have any updates or further concerns about your bank transactions, please feel free to reach out.
