Manufacturing companies are companies that aim to produce certain goods. In the production, companies need to have accurate production planning. One of the affected production planning is the number of Work in process (WIP) owned by the company. If the amount of owned WIP is too large, then the company has large deposited funds, that is affecting the company's cash flow. In addition, the presence of a large number of WIPs can potentially cause death stock which is a loss for the company also. After doing the research, it was found that the main cause of the large number of WIPs was the lack of coordination that is occurred between PPC and production department, and furthermore it was found that hand written records is the root of the problem. Therefore, it is necessary to make improvements, by using shop floor management system. By Applying the shop floor management system is expected to eliminate problems that occur in the company due to large number of WIP owned by the company