A TikTok-first e-commerce brand achieved 4.5% CTR with Spark Ads but lost $20K to a 7-step checkout with 94% cart abandonment. Reducing to 3 steps with guest checkout cut CPA by 88%.

Mobile visitors make up 70% of landing page traffic but convert at half the rate of desktop. Learn the mobile-specific optimizations that close the conversion gap and capture revenue you're currently losing.