BY USING A PARTNER CODE

m.Partner Code Page

Within the settings, locate the 'Partner Code' option. Clicking on it enables you to generate a code for your company, which can be shared with clients or embedded on your website.

m.Tag Your Partner

Screenshot (m) - This allows your customers tag you as their Zoho partner for existing services. 

n.Tag Your Partner (partner switch option for customers)

Screenshot (n) - Customers can also use the Partner Code option to switch or update their designated partner as needed.