## Notification Area

The **Notification Area** is designed to display important messages and notifications to the navigator about the system status, navigational events, and potential issues.

![Notification area example](images/gui-01-image93.png)

### Notification Examples

The image shows examples of notifications:

- **"Unread AIS messages exist"** — there are unread AIS messages
- **"There is no master in the network"** — there is no master station in the network


### Chart Viewing Date

If the properties of chart objects have a **Chart viewing date** that does not match the current date, or the selected date range does not match the current date, the message **Display time conditional** will be displayed in the window.

### Additional Indicators

- A **Non-official** indicator is displayed if a chart from a manufacturer not registered with the IHO is used for navigation

- If cells were installed with **SSE25** or **SSE27** warnings, a corresponding message will appear

- Messages about **overscaling (Overscaled x...)** or the availability of larger scale **ENCs**
