This thesis is concerned with the importance of strategic, tactical and operative purchase management in order to achieve the best, most economical and financially successful goals, which determine the competitiveness and the future of each company. Purchase, being one of the key elements in the functioning of a company, dictates the business operations of a company and directly influences its stakeholders, the critical points in the process, the quality of the final product and its status on the market, and determines the business direction of the organization. Operative, strategic and tactical management requires timely information, structural organization and the coherence of all business functions, as well as the use of a variety of tools supporting the decision- making process. In this thesis, theoretical explanations related to purchase are illustrated by an example of purchase functioning and management in “XX” company. Additionally, a survey in the form of a questionnaire was conducted on a sample including purchasing employees in order to confirm the hypotheses of the thesis.