post https://marketplace.walmartapis.com/v4/fulfillment/generate-label
The primary goal of this service is to produce labels for booked shipments.
Carrier labels:
Currently, generate label API supports the creation of carrier labels for small parcel
shipments. After successfully booking a small parcel shipment, you can use the
Generate Label API to request carrier labels.
These labels are essential for carriers to track the shipment from its creation to its final
delivery at the Walmart facility.