We would like to prevent duplicates based on a field other than the email address.  In Salesforce, we created a formula field that concatenated the Account Name, Contact First Name, Contact Last Name and then set the flag to prevent duplicates of that value.  This allowed us to get much closer to preventing duplicates for people.

Is there anything similar in Zoho - I have enabled the "no dupes" flag on the email address but when I created a formula field like the one above there is no option to prevent duplicates.

Thanks all!