One example could be combining credit card data and location data to try and infer is bad weather affected same-store sales. Another use could be determining if a company was emailing loss-leading discount promos at the quarter to juice its sales growth. Another could be collecting Tesla VINs to see if it is hitting its target productions. In the last case, Bloomberg has made this available for free:

https://www.bloomberg.com/graphics/2018-tesla-tracker/