> Hell, it probably applies to Amazon (the retailer, not AWS).
That's perhaps the most genius thing in the Amazon system: the actual amount of cash bound in warehoused inventory is negligible - they only have the risk for stuff they directly sell. For all the other products, the sellers are on the hook towards the manufacturers.
Essentially they are an online Walmart with next to zero of the risk a real Walmart has because most of their inventory risk is shifted towards the "sellers"...
Most retail has net 90 day payments and forced returns where manufacturers have to accept unsold product. Walmart and other big retailers likely have little money tied up in inventory. They sell a product before they have to pay the manufacturer for it.
Walmart is tough on terms but meets obligations. I worked on a farm in high school that sold would sell them Fall stuff — pumpkins, cornstalks, etc.
They would pay net-10, which was unheard of, most of their big buyers habitually paid late. The local grocery chain would pay 60-90 days late on a 30 day invoice. The cash in hand was worth sometimes losing a little money.
Walmart is specifically famous for having some of the most onerous terms amongst all large retailers. Anecdotally, Walmart has asked for net 270 terms from a supplier I am accquainted with.
But relatively it probably applies to bigger manufacturing companies as well. Hell, it probably applies to Amazon (the retailer, not AWS).