In the study of Hicks, R. (2013) entitle An exploration of Healthcare Inventory and Lean Management in Minimizing Medical Supply Waste in Healthcare Organization which the purpose of the study is to show inventory management technologies and lean thinking help healthcare firms waste less on expiring medical supplies. Like the study of Point of sales and inventory management system for Kkopi.Tea – Area K branch will use an inventory system to monitor the product that was consumed and sold. However, the study of An exploration of Healthcare Inventory and Lean Management in Minimizing Medical Supply Waste in Healthcare Organization was used in a different line of business. Hicks, R. (2013). An exploration of Healthcare Inventory and Lean Management in Minimizing Medical Supply Waste in Healthcare Organization. Walden University ProQuest Dissertations Publishing. https://www.proquest.com/docview/1350640333 The study of the influence of warehouse replenishment rate on an inventory management system with a fixed order quantity by Bedyaeva, A. V. and Kapitanov, A.V., (2015). Studied about the fundamental concepts of an inventory management system with a set order amount are discussed, along with the system's benefits and drawbacks which has the same concept of management system for the study of Point of sales and inventory management system for Kkopi.Tea – Area K branch. However, the “The study of the influence of warehouse replenishment rate on an inventory management system with a fixed order quantity” was focused on the influence replenishment rate while Point of sales and inventory management system for Kkopi.Tea – Area K branch focuses on their overall product and sales. Bedyaeva, A. V. and Kapitanov, A.V., (2015). The study of the influence of warehouse replenishment rate on an inventory management system with a fixed order quantity. https://link.springer.com/article/10.3103/S1052618815080038