This widget displays a count of how many people recently purchased the current product within a certain time range.
For example, you can display a message like "320 people bought this product in the last 30 days".
The lookback date (30 days ago, 1 week ago, in the last day, etc) can be configured to fit what your intended effect is.
You can configure this to only show if the number of orders is above a threshold. By default this threshold is 1.