SM Entertainment is required by companies as well as good promotion, analytics, and data analysis. You also need to understand how to track facebook ads in google analytics https://www.owox.com/blog/use-cases/how-to-track-facebook-ads/ . And other supporting things for your business. Only in this way do good promotion and sales in large businesses work. By fact, there are many more factors, and everything cannot be put here.
It looks so pretty