In order to create an account on campus.extension.org , each user must have a unique email address. You can create multiple accounts on a shared email address by adding "+OTHERNAME" to your email address (add it to the part before the @ with no spaces). For example, if the shared email address is mybusiness@gmail.com, then when you create an account on campus.extension.org, enter this as the email address : mybusiness+Joe@gmail.com and/or mybusiness+Mary@gmail.com.  Campus will think of this as a different address, but in most cases, the email provider will ignore that "+OTHERNAME" in the address and send the email to the regular shared email account.

To skip the process of email verification, however, it is suggested that you create these accounts using the signup form at https://catalog.extension.org/account?action=login_form.