The present thesis addresses the development, integration, and evaluation of an extension tool designed to enhance the capabilities of the existing Material Requirements Planning (MRP) system at Lear Corporation. Conducted in a real-world industrial setting, the study specifically focuses on the AutoTech supplier and aims to provide scalable solutions applicable to other suppliers and plants within Lear Corporation. The development of this tool is driven by inherent limitations in the current MRP system, which struggles to meet the specific needs of daily suppliers with high volumes. The primary goal of this research is to improve the efficiency of material planning processes by reducing time consumption, human errors, and inefficient resource utilization.