Delivery Messaging shows real-time delivery info on product pages by stock status. Create rules that match products by tag with messaging for in-stock, out-of-stock, pre-order, and mixed-stock — built-in pre-orders replace a separate app. Each rule controls ETA timelines, countdown timers, delivery dates, cut-off times, and shipping rates. Announcement bar with progress tracking encourages higher cart values. Auto-updates with your business hours, lead times, and courier schedules.