Changes are common in business. Workers should take care to see that all messages have current information. Using incorrect or outdated information can cause problems. Additional messages are often required, and the goodwill of customers can be lost.

Part of Kim Yung's job is to answer inquiries about whether products are in stock and when they can be shipped. A customer asked whether a certain product could be shipped at four dates throughout the year. Kim knew that the company kept good inventories. He responded by email that there would be no problem meeting the customer's order. Only after the customer sent the order with the dates for delivery did Kim check on the items ordered. At that point, he learned that the company would stop making the item within the next two months.

What should Kim have done before answering the customer's question? What may be the result of Kim's error?