This research is on Environmental complexity as the determinant of choice of promotional tools in marketing oriented organizations. Although the environment variables are numerous and are subdivided into three major sub-section (the macro, immediately or table, and the microenvironment) its complexity has an immense influence on the choice of the promotional tools adopted or that can be adopted by marketers to create awareness for their product carried. Statement of the problem of this research study will give the best solution to the researcher such as, what are the significance of environmental complexity to promotional tools and what effects does it have on market share and profitability. The objectives of this research topic aim at finding a solution to the effect of environmental on promotional tools and to increase the organization”s profit. The methodology of this research focus on the purpose of the project literature search and a survey of a knowledgeable person who has ideas on the subject of the work-study and measurement would be sought. The findings show that majority of customers of the supermarket believe that the environment has a greater influence on their buying decision. The researcher wishes to give the recommendation that the marketing department should pay more attention to research into the environmental variables and develop a more dependable adaptation strategy.