There are many reasons you might want to change the email address you use to log into Base, including switching jobs, company domain changing and more. You can change that email address / username with a few simple steps. Note: You will need access to the new email address to receive the confirmation email.
In Base, click on your name in the upper right hand corner to access the various menu options.
Click User Settings.
Select the Email & Password tab.
Define the desired email address in the Email Address field.
Base will send a confirmation email to the new email address. Click the link in the email and follow the steps to complete the change.