Welcome to the Community, @executivedirecto.
You can go to the Banking page and update your bank account sign-in information from there. Let me guide you through the steps.
- In your QuickBooks Online, click Banking from the left menu.
- Select the appropriate bank account you want to update.
- Click the pencil icon, then select the Edit sign-in info button.
- Enter your updated sign-in information from the fields.
- Click Save and connect.
Here's an article you can read for more details: How to update your bank account sign-in information.
You might also want to check out this article to learn how to match and categorize bank transactions: Match and categorize bank transactions in QuickBooks Online.
Please let me know if you need clarification about this, or there's anything else I can do for you. I'll be standing by for your response. Have a great day.