I am new to ZohoCRM. I am evaluating both type of users (google and google apps)

I follow this for google user ( https://www.zoho.com/crm/help/activate-google-contacts-and-calendar.html)  and this ( https://www.zoho.com/crm/help/google-apps/export-events-to-google-calendar.html) for google apps users.

In the both cases there is no "Google Apps link" in Setup > Apps & Add-on

What am I doing wrong?

Thank you