Hi @Jobworks. Fiat Lu -Asia has provided helpful info in relation to the issue you're having. I'd recommend using the Sign in option mentioned by my colleague Caitlin above. Using this option allows you to use the same email on your accounts. If you decide to change the email on the account, here's an article which shows you how: Change your email, user ID, or password for QuickBooks Online, QuickBooks Online Accountant, and Qui.... Feel free to ask other questions.