Hamad and Jerry agreed that Hamad would ship via a destination contract 10 pounds of corn☺ by May 1 to Jerry. On April 1st, Hamad sent Jerry a written notice that he would not be able to honor the agreement. What is the legal issue?

Hamad and Jerry agreed that Hamad would ship via a destination contract 10 pounds of corn☺ by May 1 to Jerry. On April 1st, Hamad sent Jerry a written notice that he would not be able to honor the agreement. What is the legal issue?