A business function is a group of different tasks and activities. Similar tasks within an organization are grouped and form a function. Business functions are an important part of every organization. Whether it is a multinational company or a small company, it will have the main functions. The only difference is in the way they are structured. A smaller company might have multiple functions combined, while a bigger company can have all of these functions as separate departments. The main business functions in an organization are research and product study, development, purchasing, production, sales, finance, and human resources management. Each of these seven functions is equally important and responsible for the company's success. Even though every company has these business functions, its structure will differ as every company does business differently. „Zara“ and „H&M“ are fast fashion brands. They sell clothing and accessories for women, men, and children. At first glance, these two companies seem extremely similar, but their business model and functions are very different. Zara is a manufacturer and a seller. They have their own factories where they produce the majority of their products. They control the entire production process, from painting and cutting materials to manufacturing and selling the finished products. While H&M is only a seller. They don’t own any factories or manufacture their products. H&M works with manufacturers from all over the world. They buy finished products and then sell them in their physical stores and online.