You can disconnect your QuickBooks Online account at any time from your Aero account. Disconnecting your Aero account from your QuickBooks account does not cancel your Aero subscription.
To disconnect your QuickBooks account, navigate to Admin > Manage QuickBooks. Click the Disconnect from QuickBooks button.
You will be asked to confirm that you want to disconnect your account. Check the box and then click the Disconnect my account from QuickBooks button.
When the account is disconnected, you will return to the Manage QuickBooks screen. It will look like this: