Case visibility permissions determine which users can view cases for specific workflows. These are configured per workflow and can be set up using permission groups, assigning different visibility levels. For example, only the case creator or assignee can view the case, or all users can view all cases.
Multiple case visibility permissions can be created for one workflow. If a user belongs to more than one case visibility permission, access is assigned according to the case visibility permission with the highest priority (one with smallest number).