Thanks for reaching out to us here. QuickBooks Online is a great tool that helps keep your books balanced. It's important to have only the accounts connected that you need in order to keep your books clean. I can provide some information on how to unlink accounts
To unlink your account, You can navigate to the banking section, select the bank you wish to unlink and then click on the pencil icon. Next, at the bottom of the page that pops up, you will see a box that says Disconnect this account on save, check the box and click save. this will disconnect the bank from your QuickBooks account.
If you have any other questions, feel free to reach out here.
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