What tab setting on a profile makes a tab NOT accessible on the All Tabs page or visible in any apps?

The correct answer, Tab Hidden, indicates that a tab is completely hidden from users; it will not appear on the All Tabs page or within any apps. When a tab is set to be hidden, it effectively prevents users from accessing that tab, regardless of their permissions or the settings of the profile.

Choosing to hide a tab is useful for organizations that want to streamline user experience or restrict access to specific functionalities within the system. For instance, if certain tabs contain sensitive data that should not be viewed by all users or if the organization wants to minimize distractions by presenting only the most relevant information, this setting can be beneficial.

The other options, while they affect visibility and access, do not completely prevent a tab from being seen. For example, a tab set to Read-Only would still be accessible, just without edit capabilities; Default On would make a tab visible to all users; and Default Off would keep it hidden initially but still allow users to find and add it from the All Tabs page if they have the appropriate permissions. Thus, Tab Hidden is the only setting that ensures a tab is removed from both the All Tabs page and app visibility.