What metrics should I track to measure if my AI-generated A+ Content and videos are working?

Key metrics in Amazon Brand Analytics and Seller Central: 1) Glance View Conversion Rate (GVR) - percentage of product detail page views that result in a sale, benchmark 12-15% for most categories, 2) A+ Content engagement - Amazon shows read-through rate for A+ modules, target >40% scroll-through, 3) Video completion rate - Amazon does not expose this directly but you can infer from engagement metrics, 4) Search query performance - track if your target keywords are generating impressions after A+ launch, 5) BSR (Best Seller Rank) movement over 30/60/90 days post A+ launch. Setup: take baseline metrics 2 weeks before A+ launch, compare to 30-day and 60-day post-launch metrics. Industry benchmark: well-executed A+ Content with video drives 5-15% conversion lift. If you see no lift after 60 days, regenerate A+ visuals with a different angle (emotional vs functional, lifestyle vs studio) and run an A/B test.