The mission of business planning is to provide a structured insight into business process preparation. Detailed planning of the foreseeable circumstances for the successful course of business vision realization is a prerequisite for the responsible organization of the realization of the business idea. Knowledge of the relevant elements of micro and macro environment is also a necessary precondition for creating a proper swot analysis of the opportunities and threats, as well as the real strengths and weaknesses of the company. A thorough internal analysis of the economic operator will also help us identify the starting positions. The results of such analyses are the starting point for appropriate positioning of the economic operator in the environment and creation of sustainable competitive advantages. In these circumstances, planning, control and analysis, as interrelated and conditioned activities, are an integral and indispensable part of the overall management process. Continuous comparison of the realization results with the planned activities provides the entrepreneur with the opportunity to make appropriate business decisions with the aim of successful realization of the business activity. Ignoring the need for planning frequently stems from the inadequate education of decision makers. Turning off complete business process planning regularly results in significantly weaker effects and is often the cause of business activity failure. Argumentation of the lack of planning due to insufficient matching of plan and realization points to the degree of misunderstanding and often ignoring the limiting circumstances for business process realization. This paper aims at highlighting the circumstances, elements and necessity of business planning as a guide and proofreader in the successful realization of business activities.