🚨 Prime Day Is Live. Walmart Is Live. Scripts Die in 6 Days. Welcome to the Most Intense Week in Ecommerce.

This week's signal: You're reading this during the most competitive retail week of 2026. Prime Day started yesterday. Walmart Deals started Sunday. Target Circle Deal Days are running. Between them, these three events will move more online dollars this week than any non-holiday period in history. Shopify just shipped 150+ updates in its Summer '26 Editions. And the hard deadlines we've been counting down for months are now measured in single digits: Scripts in 6 days, EU de minimis in 7. Here's what's happening and what to do about it right now.

1. Prime Day 2026 Is Live. Day 2 of 4. Here's What's Working.

Prime Day kicked off at 12:01 a.m. PDT yesterday and runs through Friday June 26. Four days, 22 countries, 35+ categories. Amazon is dropping Today's Big Deals three times daily — at midnight, 8 a.m., and 1 p.m. Pacific — with new deals appearing as often as every five minutes during peak windows. Day 1 featured 50% off Amazon Haul sitewide and drops from Drunk Elephant, SHOKZ, Nespresso, Levi's, and Our Place. The LG 65" Art Gallery TV and Shark FlexFusion were among the marquee product drops.

For sellers still in the event: Bid inflation during Prime Day hours is well documented. If your CPC campaign isn't performing in the first 12 hours, cut it rather than chase. Prime Exclusive Discounts and coupons are still running if you missed the deal submission window. Monitor your pricing dashboard in Seller Central — Amazon's Typical Price calculation (changed May 18) may be affecting your visible discount. And watch your inventory velocity: stockouts during Prime Day tank your organic ranking for weeks after the event. Prime Day 2025 generated $24.1 billion in total US online spend across all retailers. This year's number should be higher.

2. Walmart Deals Is Also Live. So Is Target. 49% of Prime Day Shoppers Buy From Both.

Walmart Deals started Sunday (June 22) and runs through June 28 — seven days total, three days longer than Prime Day. No membership required for the main sale. New this year: W+ members get "hot deal drops" with 24-hour item locks on high-demand products before they open to everyone. Target Circle Deal Days are running June 23-26, matching Prime Day's window exactly, with Circle 360 members getting 24-hour early access on the 22nd. Best Buy's Tech Fest also overlaps from June 22-28.

The stat that tells the whole story: Numerator found that 49% of Prime Day shoppers in 2025 also shopped Walmart's competing event. Bloomberg Second Measure data showed Walmart.com spending grew 24% YoY during its 2025 event — six times faster than Prime Day's growth. Walmart's web traffic rose 14% while Amazon's was flat. Walmart's app usage grew 22% versus Amazon's 3%. The competitive overlap is working for consumers and for Walmart. If you sell on multiple channels, run promotions across all three simultaneously this week. The competitive pressure between platforms is producing steeper discounts than any single event generates alone, and the cross-shopping behavior means you're losing wallet share if you're only on one platform.

3. Shopify Summer '26 Editions: 150+ Updates, Native A/B Testing, and AI Merchandising

Shopify streamed its Summer '26 "Everywhere Edition" on June 17. The package: 150+ updates. The ones that actually change decisions for DTC brands running $5M-$50M: Native A/B testing (Rollouts) is live for themes and checkout configurations — schedule, gradually release, and split-test without a third-party app. That collapses a significant chunk of the testing app stack. Checkout Components hit general availability on Plus, making checkout fully composable. AI merchandising is now built into admin: AI Collection Sort, predictive cross-sell blocks, and a merchandising insights panel. Early data shows Checkout Blocks lifting conversion 8-22%.

The move worth pausing on: Shopify's Horizon theme system introduces block-based layouts that let non-developers modify storefront structure. Sidekick can now execute store management tasks through natural language ("create a 20% discount for VIP customers expiring December 31"). And Storefront API 2026-07 ships July 1 with breaking changes to cart discount allocations. If you were budgeting a headless migration for Q4 to escape checkout constraints, Shopify just narrowed the case for it. Composable checkout on native Plus is a different cost curve than headless for stores under $50M GMV. Don't renew sorting, cross-sell, or A/B testing app contracts this month — native versions are landing in the same quarter.

4. Shopify Scripts Die in 6 Days. 41% of Plus Merchants Still Aren't Ready.

June 30. Six days. All Shopify Scripts stop executing. No grace period. No rollback. No warning banner on your storefront. This is the third and final deadline — Shopify pushed it from August 2024 to August 2025 to June 2026 and has confirmed it will not extend again. Editing and publishing have been locked since April 15. A BigCommerce industry survey found 41% of Shopify Plus merchants with $5M+ annual revenue still rely on at least one legacy checkout Script. That means nearly half of Plus stores running serious volume are about to have something break.

What breaks and how it shows up: Scripts fail silently. Your checkout doesn't go down. Customers can still complete purchases. But your discounts stop applying. Customers who expect a promotion buy at full price or abandon. Shipping rate Scripts stop filtering, so every configured carrier option appears regardless of location. Payment method Scripts stop hiding options you intended to restrict. The first signal is usually a conversion dip nobody can explain or a customer complaint. If you haven't migrated to Shopify Functions and you start today, agency capacity means delivery in September. For stores with one or two simple Scripts, an emergency rebuild this week is possible. For anything complex, accept the break and prioritize the fix. Run the customizations report (Settings > Checkout) right now if you haven't.

5. EU De Minimis Dies in 7 Days. Section 301 Comments Due in 12. Section 122 Expires in 30.

July 1 (7 days): The EU eliminates its €150 de minimis exemption. A €3 per-parcel customs handling fee goes into effect. Every shipment to EU customers requires full customs declarations and applicable duties regardless of value. Additional member-state fees are expected later in 2026. If your checkout doesn't display duties at point of sale by next Wednesday, expect abandoned carts and chargebacks. Shopify Markets handles it natively. Everyone else needs a duty API integrated this week.

July 6 (12 days): Comment deadline for USTR's proposed Section 301 forced labor tariffs — 10% on 15 trading partners, 12.5% on 45 others, covering 60 countries. USTR hearing July 7. Separate 25% proposed on Brazil. Vietnam IP investigation ongoing.

July 24 (30 days): Section 122's 10% surcharge expires. Congress hasn't moved to extend it. Section 301 tariffs are the intended replacement — no cap, no expiration. Holland & Knight says resulting rates will likely match or exceed old IEEPA levels. If your H2 sourcing model assumes the 10% drops off cleanly, update it. CAPE refund claims for IEEPA duties remain open.

The Next 30 Days

Most Read Articles This Week