CoreTrex

News & Insights

Marketplace intelligence, applied

What's changing on Amazon, Walmart, and all other eCommerce marketplaces.

Editorial photo of a retail media operator reviewing campaign creatives on a tablet beside product packaging.News

Walmart Display Ads Just Lifted New Buyers 45%

Walmart Connect says Onsite Display plus Sponsored Products drove a 45% median lift in new-to-brand ad sales versus search ads alone. WFS plus Sponsored Products still shows 5x GMV.

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Editorial photo of a worker splitting inbound cartons across two pallets at a fulfillment loading dock ahead of a receive-by deadline.News

Amazon Optimized Inbound Hits Sept 16

Amazon-optimized FBA splits for Prime Big Deal Days still have to arrive by Sept 16. Minimal splits already closed. Five days left for the option most sellers use.

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Editorial photo of a fulfillment receiving clerk checking inbound cartons at a loading dock ahead of a holiday inventory deadline.News

Walmart Annual Event Inventory Is Due Sept 15

Walmart wants WFS inventory in by Sept. 15 for the Annual Event. October Event inbound already closed. Six days left if your units are not already rolling.

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Editorial photo of a marketplace seller reviewing deal submissions at a desk as a deadline approaches.News

Big Deal Days Deals Close Tomorrow

Amazon’s Prime Big Deal Days deal submission window closes September 8. Fees are unchanged. Inventory still has to arrive by September 9 or 16 depending on your split option.

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Editorial photo of a customer returning a holiday package at a retail returns desk.News

Walmart Holiday Returns Run Through Jan 31

Walmart just told Marketplace sellers the standard 30-day return window stretches for holiday. Most items bought Oct 1 through Dec 31, 2026 can come back through Jan 31, 2027.

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Editorial photo of officials at a hearing table reviewing advertising cost documents.News

FTC Says Amazon Hid Ad Surcharges for Years

The FTC and 22 state AGs sued Amazon over an alleged secret soft-reserve surcharge in Sponsored Ads auctions dating to ~2019. Amazon calls the case misguided. Here is what operators need to know, without the courtroom noise.

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Warehouse loading dock with a September calendar circled on the 1st, showing the WFS inbound deadline.News

WFS Inventory Is Due Tomorrow

Walmart wants WFS inventory in by Sept. 1 for the October Event. If it is not already moving, that window is gone. Sept. 15 is next.

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Editorial photo of a shopper in a retail aisle comparing shelf products to a marketplace listing on their phone.News

Online Just Hit 17% of Retail

Census just put U.S. e-commerce at a record 17.1% of retail after 12.2% growth. Amazon, Walmart, and Shopify all grew faster.

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Editorial photo of a product video on a phone against a retail fulfillment backdrop.News

TikTok Shop Just Passed Target.com

TikTok Shop hit about 2% of U.S. online retail spend in July. That is larger than Target.com or Costco online, and it is the same shopper already buying on Amazon and Walmart.

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Editorial photo of marketplace inventory moving through a fulfillment floor.News

Walmart Marketplace Grew 52%

Walmart's Q2 marketplace sales grew 52% and Connect ads 43%. Nearly half of marketplace volume now runs through WFS. The next date that matters is September 1.

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Editorial photo of Sponsored Products ad tiles appearing inside a creator product-review video.News

Amazon Auto-Enrolled Your Ads

Amazon started serving Sponsored Products inside Influencer Program content on August 10. Campaigns were enrolled by default, at the bids you set for search. Most brands still have not checked the setting.

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Editorial warehouse photo of inbound cartons racing an earlier Amazon Q4 receiving deadline.News

Amazon Moved Q4 Inbound Deadlines Up

Amazon's holiday calendar is not a fee story this week. It is a logistics story. Prime Big Deal Days inventory has to arrive by early September, and the deal window closes September 8.

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