Hola! A major order is when someone asks a company to make a lot of things all at once. So, imagine if your friend asks you to make 10 drawings for their birthday party. That's a big order for you because you have to make a lot of drawings. But for big companies, a major order could mean making thousands or even millions of things all at once!
Companies get excited about major orders because it means they can make a lot of stuff and sell it all at once. But they have to make sure they can handle the big order, which can be a lot of work. It's kind of like how you have to make sure you have enough paper and markers to make all those drawings for your friend.
When a big company gets a major order, they usually have to plan carefully so they can make everything on time and make it really well. They might have to hire more people, get more supplies, or even build a new factory to make all those things!
In the end, a major order is a big responsibility for a company, but it can also be a great opportunity to show everyone that they can make things really well and make a lot of money too!