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 Report Type column to review changes from the previous version of the spec to the latest recommended version. The diff report excludes versions that are not recommended. Walmart provides diff reports with each update to the item spec. Make sure to check this section regularly to capture all changes in item setup requirements. For example, the 4.X to 5.X Diff Report explains the changes between versions 4.X and 5.X, simplifying the 5.X migration process.
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 | MP_ITEM_MATCHv4.2 | Not applicable | Not applicable | Not applicable |
| Create new items for MP (SFF fulfilled) | MP_ITEM | 5.0.20260330-14_47_14-api | 5.0.20260304-22_45_32-api | 5.0.20260205-21_38_48-api | MP Item spec version report |
| Maintain existing Items for MP (SFF) and WFS | MP_MAINTENANCE | 5.0.20260330-14_47_14-api | 5.0.20260304-22_45_32-api | 5.0.20260205-21_38_48-api | MP maintenance spec version report |
| Create new items for WFS | MP_WFS_ITEM | 5.0.20260330-14_47_14-api | 5.0.20260304-22_45_32-api | 5.0.20260205-21_38_48-api | WFS item spec version report |
| Convert existing item to WFS | OMNI_WFS | 5.0.20260330-14_47_14-api | 5.0.20260304-22_45_32-api | 5.0.20260205-21_38_48-api | WFS convert spec version report |
| 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 | ACES-XML-sampleACES-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 Specs | Feed Type | Latest Version |
|---|---|---|
| Offer setup by match | MP_ITEM_MATCH | CA_MP_ITEM_MATCH.json |
| Create new items for MP 4.X | MP_ITEM_INTL | CA_MP_ITEM_INTL_SPEC.json. |
| Maintain existing Items for MP | MP_MAINTENANCE | CA_MP_MAINTENANCE_SPEC.json |
| Create new items for WFS | OMNI_WFSSETUP | CA_OMNI_WFSSETUP |
| Convert items for WFS | OMNI_WFSCONVERT | CA_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 Specs | Feed Type | Latest Version |
|---|---|---|
| Offer setup by match | MP_ITEM_MATCH | MX_MP_ITEM_MATCH.json |
| Create new items for MP 4.X | MP_ITEM_INTL | MX_MP_ITEM_INTL_SPEC.json. |
| Maintain existing Items for MP | MP_MAINTENANCE | MX_MP_MAINTENANCE_SPEC.json |
| Create new items for WFS | OMNI_WFSSETUP | MX_OMNI_WFSSETUP |
| Convert items for WFS | OMNI_WFSCONVERT | MX_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 Specs | Feed Type | Latest Version |
|---|---|---|
| Offer setup by match | MP_ITEM_MATCH | CL_MP_SETBY_MATCH_SPEC.json |
| Create new items for MP 4.X | MP_ITEM_INTL | CL_MP_ITEM_INTL_SPEC.json |
| Maintain existing Items for MP | MP_MAINTENANCE | CL_MP_MAINTENANCE_SPEC.json |