Item spec: versioning and diff reporting

Managing item specifications across multiple marketplaces is critical for accurate product setup and maintenance. Walmart provides detailed item spec requirements for each region to help you integrate efficiently and stay compliant with evolving standards.

This article consolidates item specification resources for the U.S., Canada, Mexico, and Chile marketplaces. Each section includes:

  • Feed types supported in that marketplace
  • Latest item specifications with download links for all marketplaces
  • Previous versions and change reports for quick comparison (Market availability: US only) item specs for quick comparison and reports to track changes (Market availability: US only)

Use these resources to ensure your integration aligns with the latest spec requirements. Expand the relevant section below to access the complete tables and documentation.

US

You can download item specification requirements for various feed types. The table below provides links to download the complete item spec requirements for 6,700 product types simultaneously. You can access both the latest and previous versions of the specifications to quickly compare which version you've integrated with and troubleshoot any issues on your end.

Use the Diff Report Type column to review changes between the previous specification version and the latest recommended version. Walmart publishes an updated diff report with each item specification release. Review this section regularly to identify changes to product types, attributes, allowed values, and item setup requirements. Diff reports compare only the recommended and previous versions; versions listed as Not Recommended are excluded.

The following table provides detailed specifications and feed types for managing item setup and maintenance in the U.S. Marketplace. It includes recommended versions, previous versions, and related reports to ensure compliance with the latest standards.

Show table
Item Specs Feed Type Recommended Version Previous Version Not Recommended Diff Report Type
Offer setup by match MP_ITEM_MATCH 5.0.20260607-22_38_54-api MP_ITEM_MATCHv4.2 Not applicable Not applicable
Create new items for MP (SFF fulfilled) MP_ITEM 5.0.20260829-12_49_39-api 5.0.20260803-17_50_56-api 5.0.20260703-18_22_27-api MP Item spec version report
Maintain existing Items for MP (SFF) and WFS MP_MAINTENANCE 5.0.20260829-12_49_39-api 5.0.20260803-17_50_56-api 5.0.20260703-18_22_27-api MP maintenance spec version report
Create new items for WFS MP_WFS_ITEM 5.0.20260829-12_49_39-api 5.0.20260803-17_50_56-api 5.0.20260703-18_22_27-api WFS item spec version report
Convert existing item to WFS OMNI_WFS 5.0.20260829-12_49_39-api 5.0.20260803-17_50_56-api 5.0.20260703-18_22_27-api WFS convert spec version report
Create or update Virtual Packs MP_VIRTUAL_PACK_BUNDLE 5.0.20260508-19_30_00-api Not applicable Not applicable Not applicable
Bulk item delete DELETE_ITEM 5.0.20260330-14_47_14-api Not applicable Not applicable Not applicable
Category mapping updates Not applicable Not applicable Not applicable Not applicable Migration documentation
4.X to 5.X Diff Report All Not applicable Not applicable Not applicable Migration documentation
- Fitment ACES XML file - Fitment ACES XLSX file FITMENT_ACES ACES-XML-sample


ACES-XLSX-sample
Not applicable Not applicable Not applicable
Fitment PIES sample file FITMENT_PIES PIES-sample-file Not applicable Not applicable Not applicable

Canada

This table outlines the item specification requirements and feed types for the Canada Marketplace. Use the recommended versions and associated documentation to maintain accuracy and consistency in your product listings.

Show table
Item SpecsFeed TypeLatest Version
Offer setup by matchMP_ITEM_MATCHCA_MP_ITEM_MATCH.json
Create new items for MP 4.XMP_ITEM_INTL CA_MP_ITEM_INTL_SPEC.json.
Maintain existing Items for MPMP_MAINTENANCE CA_MP_MAINTENANCE_SPEC.json
Create new items for WFSOMNI_WFSSETUPCA_OMNI_WFSSETUP
Convert items for WFSOMNI_WFSCONVERTCA_OMNI_WFSCONVERT

Mexico

Below is a comprehensive reference for item specs and feed types applicable to the Mexico Marketplace. It highlights recommended versions and migration resources to help streamline your integration process.

Show table
Item SpecsFeed TypeLatest Version
Offer setup by matchMP_ITEM_MATCHMX_MP_ITEM_MATCH.json
Create new items for MP 4.XMP_ITEM_INTL MX_MP_ITEM_INTL_SPEC.json.
Maintain existing Items for MPMP_MAINTENANCE MX_MP_MAINTENANCE_SPEC.json
Create new items for WFSOMNI_WFSSETUPMX_OMNI_WFSSETUP
Convert items for WFSOMNI_WFSCONVERTMX_OMNI_WFSCONVERT

Chile

This table provides item specification requirements and feed types for the Chile Marketplace. Use the latest versions of the specs to ensure accurate item setup and maintenance. Review the provided documentation links to stay compliant with regional standards and streamline your integration process.

Show table
Item SpecsFeed TypeLatest Version
Offer setup by matchMP_ITEM_MATCHCL_MP_SETBY_MATCH_SPEC.json
Create new items for MP 4.XMP_ITEM_INTLCL_MP_ITEM_INTL_SPEC.json
Maintain existing Items for MPMP_MAINTENANCECL_MP_MAINTENANCE_SPEC.json

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