Hi there, @AndreaMK.

I know a way to restore your original account before starting the reconciliation in QuickBooks Online (QBO). This will allow us to remove the resume reconciling button from the page.

Since no transactions were checked off, we can close the reconciliation page without saving it. This action will revert all transactions to their original state when you open the session again. We can begin by following these steps:

1. Go to the Transactions menu and select the Reconcile tab.
2. Choose the Account where you mistakenly added an ending balance and date from the dropdown.
3. Click on Resume reconciling.
4. Hit the Save for Later dropdown arrow and select Close without saving.
5. Click Close without saving in the prompt message to finish.
   

    

Once done, you can refer to this article for guidance on reconciling the correct account and preventing any discrepancies: Reconcile an account in QuickBooks Online.

You can also check this reference if you encounter issues after reconciling your account: Fix issues for accounts you've reconciled in the past in QuickBooks Online.

Additionally, our QuickBooks Live Expert Assisted service can help you navigate the reconciliation process, ensuring you have entered the correct details in the appropriate fields.

Feel free to reply to this conversation if you need further assistance managing your accounts and categorizing your transactions, @AndreaMK. The Community is always here to support you. Stay well!