Walmart Fulfillment Services (WFS) API overview

Walmart Fulfillment Services (WFS) offers sellers another tool to grow their business and reach more customers by fulfilling orders at Walmart Fulfillment Centers (FC). Order fulfillment with WFS is fast at a low cost to sellers.

WFS allows sellers to increase sales by offering free 2-day shipping, and get Buy Box prominence with the 2-Day tag to their items.

To learn the advantages of using WFS, see Walmart Fulfillment Services.

WFS inbound order and shipment workflow

There is a new process for creating new inbound orders (IO) and shipping inventory to fulfillment centers.

WFS API workflow

To set up items for WFS and create Inbound Orders (IO) to ship inventory to the WFS fulfillment network, use the WFS fulfillment APIs in this order:

1. Option 1: Set up items for ingestion with the WFS item spec. Call the Bulk Item Setup (Multiple) API. POST /v3/feeds?feedType=MP_WFS_ITEM

2. Option 2: Convert existing ingested items for use with WFS: Call the Convert items for WFS API: POST /v3/feeds?feedType=OMNI_WFS

3. Create an Inbound Order (IO). Call the Create inbound Shipment API: POST /v3/inbound-shipments?sellerId={sellerId}

4. Check for errors in the IO. Call the Inbound Shipment Errors API: GET /v3/inbound-shipment-errors?{}

5. Get IO shipment-level details. Call the Get Shipments API: GET /v3/inbound-shipments

6. Get the IO SKU-level item details from the fulfillment center. Call the Inbound Shipment Items API: GET /v3/shipment-items

7. Update shipment quantities before delivery. Call the Update Shipment Quantities API: GET /v3/shipment-quantities?sellerId={sellerId}

8. Request shipping labels. Call the Create Inbound Shipment Label API: GET /v3/fulfillment/label/{shipmentId}

9. Provide the shipment tracking information. Call the Update Shipment Tracking API: POST /v3/shipment-tracking?sellerId={sellerId}

10. Cancel an IO. Call the Cancel Inbound Shipment API: DELETE /v3/inbound-shipments/{inboundOrderId}?sellerId={sellerId}