Top 5 this week
1. Momentum Commerce Says Amazon Prime Day Sales Down 14% in First 4 Hours
“Seeing Prime Day sales dip nearly 14% in the first four hours might raise eyebrows but with this year’s four‑day format, it’s likely just timing shifting, not demand collapsing. Consumers are pacing their purchases across the extended event, waiting for deeper ‘Today’s Big Deals’ drops. For sellers and brands, this means staying agile: monitor performance daily, adjust promotions in real-time, and leverage data trends to capture those later-moment shoppers.” ~Shelby Owens
2. Walmart launches mobile seller app for marketplace business management
“Walmart’s mobile seller app is a long-awaited move. A mobile app that finally meets the standard Amazon set years ago. Being behind a giant has its perks: Walmart can build on what already works. That’s a huge win for sellers who now get better tools, faster ops, and a more competitive alternative.” ~Vanessa Hung
3. B2B and DTC marketers find themselves on the zero-click search frontline
“Interesting to read all the pivots DTC companies are making. It sounds like the AI revolution is pushing more ad dollars to DSP, and I expect that to continue. Furthermore, DTC companies need to consider overhauling their website/SEO efforts. Either you need an earned media wizard on your team, or to consult with some of the agencies listed in this article.” ~Clayton Atchison
4. Amazon Seller Updates: Prime Day 2025 Sparks Extended Sales & Ad Battles
“Prime Day is no longer just an Amazon event; it’s a retail-wide war for every dollar. While Amazon is pushing for doubled ad spends, smart sellers know the real win isn’t about spending more—it’s about spending smarter. With every major retailer running sales right now, you have to track ROI obsessively and be ready to capture customers wherever they are shopping.” ~Tom Rohlf
5. The retail inventory method vs. cost accounting in the tariff era
“Even major players like Walmart have relied on the outdated Retail Inventory Method (RIM), which averages costs storewide instead of tracking by item. The shift to cost accounting by top retailers should be a major wake-up call—especially as corporate bankruptcies rise. That’s why I talk so much about per-unit profit and why we’re building tools for better cost visibility. It’s a huge blind spot for brands, and ecomm sellers must adapt quickly to survive and scale.” ~Chelsea Cohen