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This paper comprehensively focused on the information systems for purchase process optimization (IS) that are currently being used. It elaborates four crucial and important areas in relation to purchasing and supply management. These includes; Identifying the process involved in purchasing, how information systems are implemented and used in enhancing the supply process, understanding the key features that constitute enterprise resource planning, purchasing database and electronic communication between customer and supplier, how Enterprise Resource Planning (ERP) system facilities and improves effective communication in managing supplier selection process and lastly describing the future requirements of electronic purchasing system that will enable transparency, visibility and accessibility of information across the overall supply process. The parameters effectively enable optimization of purchase process. In today's era where Internet is accessible, the most thriving firms are those that are instep with the fast pace of technological revolution. Currently, there are more high-end devices at the fingertip of the customers, which has significantly enabled customers and many business firms to prefer executing transactions on their portable devices instead. The available technologies such as ERP system has opened an effective growth path for firms to stay competitive and relevant in the market.