Walmart Marketplace sellers must migrate from Item Spec 4.x to Item Spec 5.0 (OmniSpec 5) by August 31, 2025. After that date, Walmart will no longer support Item Spec 4.x, meaning no more new listings or updates will be accepted under the old spec—or your store may be frozen. 

What’s New with Item Spec 5.0?

  • Highly structured taxonomy: From broad categories like “Appliances” to detailed paths such as “Appliances > Cleaning Appliance > Washing Machines.” 
  • 60% fewer generic attributes, focusing on relevance. Granularity increased by up to 65%. 
  • A unified spec model applies to both Marketplace and Walmart Fulfillment Services (WFS)—no more separate workflows. 
  • Walmart reports a 10% improvement in content quality post-migration, which means fewer suppressed listings and higher visibility. 

Why This Matters to You

  • Listings freeze risk: You won’t be able to add or edit items using the outdated spec after August 31. 
  • Reduced visibility & suppressed listings: Poorly structured or incomplete listings are less searchable. 
  • Missed growth opportunities: Spec 5.0 is mandatory to qualify for Walmart programs—such as promotions, flash sales, and vertical placements.

What You Should Do This Month

  • Conduct a catalog audit: Check whether your products use the correct Product Type Groups and structured attributes.
  • Fix data gaps immediately: Fill in required fields and migrate from free-text to structured inputs in your feed.
  • Use compliant tools: Ensure your platform or feed service supports Item Spec 5.0, such as CedCommerce.
  • Test and validate before August 31: Run sample listings through the new spec to avoid surprises post-deadline.

CedCommerce Is Here to Help You Migrate

CedCommerce offers:

  • Feed migration services: We help update your catalog to 5.0-ready specifications.
  • Attribute optimization: Identify and fill gaps critical to visibility and ad performance.
  • Ongoing compliance monitoring: Stay ahead of future spec changes without manual recompliance.
  • Expert guidance: Dedicated support team to ensure smooth migration before the deadline.

Bottom Line

 

You have just one month left to migrate to Walmart Item Spec 5.0, or risk listing disruptions, visibility loss, and compliance failure. The changes require swift action, but also present an opportunity to improve your store. Use this as a chance to refine listing quality and ensure better performance under the new Walmart standard.

CedCommerce stands ready to manage your feed transformation and optimize your listings for success. Contact us today to get started before the August 31 deadline.

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cedcommerce coverage Latest Update: August 2025 Walmart Item Spec 5.0