When you add a Nudge to your website that requires some data, Nudgify will start recording new events to display. This means that if you want to display data about recent sales, you will need some recent sales to be displayed.
It is not possible to gather any historical data about what happened before the nudge was added; therefore, until the nudge is able to gather data to display, there will be nothing shown for the nudge.
Why can’t we just use fake data until Nudgify has had time to gather real data?
This article can help to explain some of the issues you can face when trying to fake social proof
In short
No. You can’t display any recent sales until Nudgify has had the chance to record sales that have taken place after it has been added to your website.