I'm my last job I raised a PO to a supplier which has a lead time of 6 months and manufactured in Italy.
I attended production meetings for 3 months telling them it on track and not to worry.
Hence to say I missed the order amendment from the supplier (the day after I sent it).
Blagged it for 2 months with various excuses until I was forced to come clean when the vendor forward the email to a colleague.
Safe to say I had to own up infront of 2 company directors and about 10 other people testing my antiperspirant.
Survived with a verbal warning.