Four different jobs arrive on one chat window
An ecommerce brand running WhatsApp support is doing four unrelated things through the same window. Confirming a cash-on-delivery order before it ships. Recovering a cart somebody abandoned an hour ago. Answering where a parcel is. And processing a return. Each has a different urgency, a different owner and a different commercial value, and in a plain shared inbox they queue in the order they arrived, which is the one ordering that is certain to be wrong.
The cost lands in two places: unconfirmed orders that ship and come back, and high-value carts treated exactly like small ones because nobody could see the difference.
