Amazon used to be a client and I've personally visited their San Bernardino facility and seen firsthand how FBA inventory is segregated from Amazon.com inventory.
Note that the WSJ article is from 2014--several years before my visit. I can't speak to what Amazon was doing with inventory in 2014, but it sure isn't what they were doing in 2017 at their SoCal distribution facilities.
Note that the WSJ article is from 2014--several years before my visit. I can't speak to what Amazon was doing with inventory in 2014, but it sure isn't what they were doing in 2017 at their SoCal distribution facilities.