Procurement represents a key function in the company's operations, and a high level of expertise and knowledge in various fields is required for efficient management. Procurement has a great impact on the success of the company and its competitive advantage, and it is important that it is carried out effectively and efficiently. Today, procurement is considered a strategic business function focused on value creation. The attitude towards suppliers has changed drastically and they are considered equal partners in procurement. The aim of this work is to get acquainted with the role and importance of the business communication process in the procurement process in the supply chain. The paper describes the basic features of the concept of procurement, the supply chain and the goals that must be achieved through the procurement process, the activities and actions that are undertaken in the entire process, and the process itself that needs to be implemented. At the end of the work, the business process in procurement was analyzed and consists of three phases: initiatives, conclusion of the deal and realization of the sales deal. Documentation plays a key role in successful business.