When you first log in with your device ( and subsequent new devices), Quickbooks will send a verification code via email to the [email protected] account that you will need to retrieve in order to continue to log into QB. All the login info is below.
QB Web site login: https://qbo.intuit.com/
QB login [email protected] / #1WSAguest
google gmail account: [email protected] / #1WSAguest