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If you have used one e-mail address to create several QuickBase accounts, then you need to specify which account you want to associate the email address with. The account you specify becomes your default account. Whenever, you or another QuickBase user enters your email address (for example, when you sign in or someone shares an application with you), this is the account to which it refers. To refer to one of your other accounts, you must use its screen name.
To specify the account that you want to associate your e-mail address with please read: