Hello there. I'm sure to help you out with your beginning balance query.

Because you haven't reconciled your account in QuickBooks Online (QBO) yet, you have the option to edit your opening balance directly from your Bank Register. Allow me to walk you through the necessary steps:
 

1. In your QBO account, go to the Accounting tab, then select Chart of Accounts.
2. Find the account on the list.
3. Select View register to get more details.
4. Look for the opening balance entry. It should have an Opening Balance Equity in the Account column.
   
   
    
5. Click on Edit to change the amount.
6. Once ready, click on Save and close.

Moreover, you can also check out this article to learn how to review your beginning balance and look for issues for accounts you haven't reconciled before: Fix issues the first time you reconcile an account in QuickBooks Online.
 

In case you need any further assistance or have any lingering questions about reconciliation, feel free to get back to us. We're always ready to lend a helping hand.