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updatedAt: 2026-04-12T09:23:12.000Z
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# Download inventory schemas

Schemas are formal definitions that specify the structure, data types, and required fields of your feed, ensuring that your file is correctly formatted before submission.

A feed is a file containing structured data that details inventory updates for multiple SKUs. To learn more, refer to the [Walmart Feeds guide](/us-marketplace/docs/feeds-overview).

Walmart provides official schemas (XSD for XML, JSON schema files for JSON) to help you validate your inventory feed structure:

* XML schemas (`Inventory.xsd`, `InventoryFeed.xsd`, `InventoryHeader.xsd`):\
  [Inventory Management.zip](/file/mp/us/InventoryManagement.zip)
* JSON schemas (`Inventory.json`, `InventoryFeed.json`, `WfsInventory.json`, `InventoryHeader.json`):\
  [InventoryJSONSchema.zip](/file/mp/us/InventoryJsonSchema.zip)

These files define the fields, data types, and nesting requirements. Before uploading your feed, use the schemas to validate that your file conforms to Walmart's requirements.

> **Note**: Improperly formatted feeds can result in failed submissions or partial updates.

## Next step

[Decide which Inventory APIs to integrate](/us-marketplace/docs/choose-an-inventory-api).