Nespresso's mobile ad targeting campaign in Hong Kong significantly increased footfall to retail outlets and enhanced brand equity through an effective online-to-offline (O2O) strategy. The campaign saw a 0.46% mobile voucher redemption rate, outperforming the average rate of 0.2%, and utilized data-driven audience targeting to engage possible customers nearby pop-up locations. Optimization efforts raised the overall click-through rate by 12.6%, highlighting the effectiveness of location-based advertising and creative interactions.