Before you can display content in a widget, you must first assign data to this widget.
In the dashboard editor, you can define a data stream that delivers processed data to a widget. A data stream reads the data from one or more data sources, such as XLS files, databases, or data feeds, and then combines, transforms, and calculates the data for the widgets.
Procedure
The Assign data page opens.
The data stream is assigned to the widget.
You can now specify the data to display in the widget.