“We have approximately 30,000 bags of coffee, 5,000 cases, that we are going to sell for half off and offer free shipping.”
“Units” meant cases, not bags, and nobody caught it until the order was 36,000 bags. The small roaster borrowed about $216,000 to fill it. Then the distributor cancelled and tried to bill them $30,000 to take the coffee back. The middlemen took no risk at all.