Access to your customer portal is governed by three things working together: who a person is (their role and group membership), what they're allowed to see (article visibility and ticket ownership), and whether they're allowed to log in at all (your login access policy). This article explains each layer so you can give the right customers the right access.
The portal has two levels of customer role:
Only verified users can log in to the portal.
To designate a customer admin, go to Settings > User management > Groups > Customer Admins, select Add User, and search for the customer.
For a ticket to appear in a customer's portal view, that customer must be listed in the ticket's Reported by field. A ticket created through another channel (email, chat, an agent) will not show up for a customer in the portal unless they are set as Reported by — even if they originally raised the request. Customer admins are the exception: they see all of their organization's tickets regardless of who reported each one.
Every knowledge base article has a Visible to setting that controls which audience can read it:
Leave Visible to blank to keep an article internal (not visible to any external audience). Set this per article to match its intended audience.
Tip: Create and manage custom customer groups under Settings > User management > Groups, then assign the relevant customers to the group. The group then becomes selectable in an article's Visible to field.