QuickBooks offers multiple login options for accessing your account, Dan.
You can use either your email address or your user ID to sign in. If you're unable to log in with your user ID, you have the option to use the email address linked to your account instead.
But also, please double-check that the user ID you provided is correct.
You can also check this article to learn how to update your QuickBooks sign-in information.
please come back to this forum if you have additional questions regarding your login credentials.