Yes you can; you will have to create a Facebook pixel first. Click here to find out how.
To add the pixel to your Zoho website:
Copy the pixel code from Facebook.
Login to your site builder.
Click Manage, then click Settings.
Click Header and Footer Code from the menu on the left.
Paste the code under the Header tab.
Click Save and then republish your site.
Note: If you would like to add the messenger button code to your website, use the Code Snippet option in the Embed element.