Use the Empty Strings function to render an 'empty' message when the dynamic text's underlying data point is empty.
In this example, the data point Sales, Australia, Brakes (blue highlight below) is used to create dynamic text:
Empty Strings is disabled by default; enable it to display the EMPTY message. In this scenario, any dynamic text passed from a data point that happens to be empty will display the "EMPTY" message, as seen in the image below.
If the underlying data point is empty, and empty strings is disabled, that dynamic text will simply appear blank.