Navigate to the SJSUOne sign-in page. The page will contain a prompt for your SJSU Tower ID and password, but you should not enter them if your account has not been activated yet.
Click the "Activate Your SJSUOne Account" link below the sign-in prompt. You need your Tower ID, date of birth, mailing ZIP code, and password to activate your account. Enter this information when prompted and click the "Continue" button to proceed through the account activation process.
Return to the SJSUOne sign-in page. Enter your Tower ID and password, clicking "Login" to sign in to the SJSUOne system. If you are on a private computer, click the "Remember Me" box to have the system remember your login information.
Select your campus email provider from the SJSUOne interface. The SJSUOne system consolidates email and other services to use a single login, so you will be logged in to your email account automatically.