Surveys are nice but how about some real data on personalization’s value? The folks at ecommerce personalization vendor Qubit analyzed two billion customer journeys and 120 million purchases to find what worked. They found messages that highlight low-stock items, trending products, and time limits were most effective. Product recommendations were less so. But the main news is that messages driven by individual-level behaviors and preferences were three times more effective than non-targeted messages. Fascinating.