To access the list of registered viewers (users) of your ticket history & knowledge base in Zoho Desk, follow these steps:
Click the Setup icon (gear) in the top bar of Zoho Desk.
In the Setup landing page, go to Channels and select Help Center.
In the Access Settings page, click Users from the left panel.
Here, you'll see a list of all users who have registered for your Help Center, which includes those who can access your knowledge base articles. You can view, search, and manage these users from this page. The list can be filtered to show active, invited, or deactivated users, and you can also invite new users or deactivate existing ones as needed.
This section displays all registered users, but note that Zoho Desk does not provide a direct list of which specific users have viewed each individual knowledge base article. It only shows who has registered and has access to the knowledge base