If I'm ordering a particular product from Amazon, is there a way to know if commingling is done? Does Amazon commingle everything fulfilled by Amazon by default, or just high-volume items?
I don't believe commingling is customer visible. That said, as I understand it, Sellers can opt-out.
FWIW, while "counterfeit", technically Amazon doesn't consider commingling to be Brand related abuse which is what I worked on. Abuse of commingling would be handled by other systems related to Seller fraud.