2-Day Shipping Program serves as a way for Walmart Marketplace sellers to offer free 2-Day delivery to our customers and gives an opportunity for Marketplace Sellers to grow their business – GMV lift, Conversion uplift, Buy Box & Search prominence, Increased 2-Day coverage.
Key features of the program are -
- Map and manage your unique fulfillment network
- Granular delivery regions to enable 2-Day SKUs
- System-generated 2-Day coverage areas identified for each Fulfilment Center
API specification can be found here - https://developer.walmart.com/#/apicenter/marketPlace/latest#shipnodeManagement
See knowledge base article for more details on the program.