Tuvis Admin - Provides access to Tuvis setup pages, where you can change your accounts settings. And to the Dashboard.
Tuvis Sales User - It will give access to Opportunities inside Tuvis Agent Panel.
Tuvis Services User - It will give access to Cases inside Tuvis Agent Panel.
(If the user should have access to Opportunities and Cases, you need to assign both permissions)
Tuvis Light User - Must be assigned for Partner Community users
Tuvis Auto Sync Data - For specific cases, when the user is not going to use Tuvis and only needs to see the conversations component