What is Walmart Buy Box?
If a product is sold by more than one merchant, Walmart presents all the merchant listings in one page. This listing page contains all the merchants selling the product, which is identified by it's UPC, GTIN or MPN. However, only one merchant wins the Walmart Buy Box. Walmart decides who wins the Buy Box by sorting each merchant's total qualification metrics for the buy box.
A merchant can own different parts of a Walmart listing. Changes to the listing are made based on ownership. Changes made on Listing Mirror are accepted by Walmart as suggestions. If a merchant does not own a particular data field, Walmart will not allow them to make changes to that field, even if they own other parts of that listing. This is one of the reasons we don't import from Walmart.
If a merchant thinks that he has better data than a competitor, he can appeal to Walmart to own that data field.