If a user is not assigned to the client application, what is the correct solution?

The correct solution involves assigning permissions to the application for Tanium Cloud within the customer's Identity Provider (IdP). When a user is trying to access a client application but does not have the necessary permissions, it typically means that their user account is not properly configured within the IdP to allow access to that specific application.

By assigning the correct permissions within the IdP, you ensure that the user's authentication and authorization workflows recognize them as having access to the Tanium Cloud application. This step is crucial because it centralizes access management, allowing for streamlined administrative processes while ensuring that security protocols are upheld.

Other methods, such as navigating to the Tanium Console URL or recreating the user account, do not directly address the core issue of application permissions. Resetting application permissions is also unlikely to resolve individual user access problems, as this might apply to application-wide settings rather than an individual user's permissions. Thus, the most effective approach is indeed to manage those permissions directly within the IdP setup.