What does the man learn?

MB Hi, Charlene. Aren’t you going to the team meeting today?
WA No. Simon just sent an e-mail saying it’s not being held today. There’s a crisis in the tech department and they can’t afford to give up the time.
MB What’s the crisis? Is there anything I can do to help out?
WA I’m afraid not. It’s a programming issue. The client just realized that they sent us the wrong data for the computerized reports they want. So now we have to re-do three weeks of coding in three days!