[Execution] A supplier says they never received the PO, and the delivery date is now at risk. How do you respond?

I would verify the transmission path first rather than arguing about blame. I want to know whether the PO was sent correctly, whether the supplier received it but did not acknowledge it, and whether there were earlier signs that the commitment was not as locked in as the system suggested.

Then I would move quickly on containment: confirm the revised reality, assess the...