Marketplace
Walmart Marketplace LIVE Walmart Marketplace API — orders, items, inventory, pricing, fulfillment. OAuth 2.0 client credentials with 15-min access tokens. Per-seller rate limits. Walmart Fulfillment Services (WFS) supported. Separate EDI path available for suppliers.
Walmart Marketplace API — orders, items, inventory, pricing, fulfillment. OAuth 2.0 client credentials with 15-min access tokens. Per-seller rate limits. Walmart Fulfillment Services (WFS) supported. Separate EDI path available for suppliers.
Walmart Marketplace seller account (must be US-based business). Client ID + Client Secret from developer.walmart.com. Seller compliance metrics in good standing. 1 Text us "Walmart" with your phone number.
2 Paste your Client ID + Client Secret in the connection wizard.
3 First sync pulls items + last 30 days of orders + inventory.
4 Optional: set up Walmart Fulfillment Services (WFS) for the items you want Walmart to fulfill.
What syncs after connection Orders
list_orders with status filter; full line items; acknowledge within 24h
Items
list_items + upload_item_feed (MP_ITEM); Item Spec 5.0 support
Inventory
get/update_inventory with fulfillment lag time
Pricing
update_price with currency + amount
Fulfillment
ship_order_lines and cancel_order_lines
Agents that act on this data 401 Unauthorized Walmart tokens expire every 15 min — our client refreshes automatically. If you see persistent 401s, regenerate Client Secret in developer.walmart.com.
Item upload fails with "spec_violation" Walmart enforces Item Spec 5.0 strictly. Check the sync_log for the specific attribute. walmart_listing_agent suggests fixes.