You can update all of the information on the user record that is also available when creating a new user.

If you just change the email for an existing user, they will be required to verify the new email via an automated link before the change takes effect. If the user has never logged in to TotalABA you can also check the Generate new password and notify user immediately option at the bottom of the user form when changing the email to bypass the verification.

The user is also able to update their name, email password, secret question/answer, etc. by clicking on their name in the upper right of TotalABA and choosing My Settings or Setup. Then select the appropriate link under Personal on the left side of the application. Note that a user cannot update their user name, this must be done by someone with user management privileges.