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Update: Fitment vehicle details in the Orders management API

Date: July 2, 2026

Walmart has added newVEHICLE_DETAILS tags in a miscAttribute group type for order lines to the Orders Management API. The updated tags include VEHICLE_ID, VEHICLE_YEAR, VEHICLE_MAKE, VEHICLE_MODEL, VEHICLE_TRIM, and VEHICLE_ENGINE.

What changed

  • Added: VEHICLE_DETAILS as a miscAttribute group type for order lines.
  • Added: Fitment-related order line data for eligible auto parts orders.
  • Added: Tags for VEHICLE_ID, VEHICLE_YEAR, VEHICLE_MAKE, VEHICLE_MODEL, VEHICLE_TRIM, and VEHICLE_ENGINE. The new tag logic provides better vehicle fitment data for auto parts orders, so sellers and developers can easily identify vehicle-related details for fitment-related products.

Why it matters

  • Fitment data helps auto parts sellers identify auto parts for customer orders.
  • The vehicle data supports order processing workflows that depend on year, make, model, or other vehicle attributes.
  • This API update reduces the need to infer fitment data from item titles, SKUs, or external systems.

Next steps

  • Review the Orders API response parsing logic for miscAttribute groups.
  • Update your system integration for the new VEHICLE_DETAILS group type.
  • Ensure your system can ignore unknown or future miscAttribute group types without failing.
  • Refer to the Order Management API Reference documentation for the updated response schema.