I had support remote into my QB yesterday to correct a customer's record, now my bank opening balance is off & can't get anyone to help. It was correct before.

We appreciate your time in reaching out to our support, Sara. I'll further guide you so you can fix the discrepancies with your balance. 

QuickBooks tracks all your opening balances for all your accounts in an Opening Balance Equity account, it's the only entry that is reconciled - R. 

In this case, we can check if your opening balance in the register matches your bank records. To do this, we can sign in to the bank's website and find your bank statement. Then, if the opening balance in QuickBooks doesn't match your bank records, we correct it:

1. In QuickBooks, select the opening balance entry to expand the view.
2. In the Deposit column, edit the balance for it matches your bank records.
3. Select Save.

I'll add these articles for more info: 

• Enter and manage opening balances in QuickBooks Online
• Fix issues the first time you reconcile an account in QuickBooks Online

If the issue persists, I recommend contacting our Customer Support Team. They have resources like screen sharing to identify the root cause of this discrepancy while ensuring the security of your information. 

Additionally, I've included these articles to help you with the reconciliation process: 

• Reconcile an account in QuickBooks Online
• Fix issues at the end of a reconciliation in QuickBooks Online  
• Undo or remove transactions from reconciliations in QuickBooks Online

You can always count on me if you have more questions about managing your balances in QuickBooks. Keep safe!