Hello there WillTheAccountant1 and welcome to the Community!
You've come to the right place for support on this and I want to thank you for being one of our awesome QuickBooks Online Accountant users. Both the bank feeds feature and the reconciliation feature in QuickBooks Online are incredibly useful tools that allow you to record your transactions and match them against your bank statement. I want to explain how these work independently and together so that you're confident in your decision to undo your reconciliation.
The Bank Feeds feature in QuickBooks Online allows you to connect your bank accounts and credit cards using your online banking credentials in order to feed in the transactions that appear on your bank statement. Within the Banking page you can match your transactions to those already entered into QBO or categorize and add them directly from the feed. Since these transactions are entered or matched against your bank statement, when it comes time to complete your monthly reconciliation, you'll have saved yourself a step.
Navigating to the Accounting tab will bring you to the Reconcile page. Your transactions for the month are filtered in here and you're required to enter a starting and ending balance based on your corresponding bank statement. Then you'll review the transactions that've been entered into QuickBooks and ensure that they match with what your statement shows. Since you've used the bank feeds to add your transactions into the system, they'll automatically be checked off. This means that you'll only have to review the transactions without check marks and check them off if they match.
Mistakes happen and undoing a reconciliation becomes necessary from time to time. When you do this, you're only undoing the transactions that you've checked off. Because the bank feed feature is a separate part of the program, the transactions entered there will still remain in your books, and you'll simply have to re-do the process of entering your account balances. The transactions from the bank feed will even remain checked off because they've still been recorded using your bank statement.
So, using this information, I think you'll feel confident in your decision to undo a reconciliation. You won't have to enter the 514 transactions again and the process will be really simple. If you have any other questions or concerns, don't hesitate to reach out here in the Community again. I'm here to help and want to ensure that you're ready to tackle the tasks that you need to accomplish using QuickBooks Online.
