Are warning messages reported by icons and tool tips in the interface.
Their place are always the same so you do not search for them.
A color code reminds their level of importance. More important, the higher the color changes to red.
You may get detailed information of the alerts non-blocking, leaving the mouse on the icon, a tooltip appears with the alert details.
Clicking the icon takes you to a menu that reminds you of the category of the alert and its wording and allows you to:
Validate / accept the warning
To override the alert (when allowed)
To recall later (remind later) the alert (when allowed)
Edit the alert (when allowed)