post
https://marketplace.walmartapis.com/v3/fulfillment/carrier-rate-quote/confirm
The purpose of this service is for seller to confirm and accept the estimated carrier shipping charges, when choosing to use WFS Preferred Carrier Program - FedEx parcel to inbound inventory to Walmart fulfillment centers.
This API is in legacy state and will be removed on February 09 2026. We recommend transitioning to the Create Booking (New) API.