In travel, prices fluctuate often based on remaining inventory. This frequently caused delays in Royal Caribbean’s email deployments — and sometime disappointment or frustration among recipients. So the cruise line set out to streamline production, improve the customer experience, and increase engagement. Using live pricing feeds in their “Buy One Guest, Get Second Guest 50% Off” email campaign generated a significant increase in click-through rates and prompted recipients to engage much more frequently on the itinerary with frequent pricing changes.