Having worked for Amazon across multiple facilities. This is not true or at least wasn’t. When stowing everything seemed pretty random for spots. Seemed to be where ever there was space. But the items themselves when not sold directly by Amazon use a different set of numbers than the B00 number I think it is an FBA (fulfilled by Amazon) number.

That being said, just going to the bathroom was enough to tank the rate for day and have to play catch-up. Lunches reset this.

In one facility they caught two people in a Gaylord having some relations. Same facility they found a used sex toy that had biological material.