Hello all, Excited to share a newly published document on the *Internals of the MRP Engine in Apache OFBiz*, now available on the Apache OFBiz Confluence.
*Link to the document:* Inside the MRP Engine of Apache OFBiz: Simulation-Driven Planning for Smarter Manufacturing <https://cwiki.apache.org/confluence/display/OFBENDUSER/Understanding+Internals+of+MRP+Engine+in+Apache+OFBiz> This guide explains how the Apache OFBiz MRP engine simulates inventory over time, analyzes demand and supply events, and generates accurate recommendations for production and procurement. It includes the exact requirement calculation formulas, supported with detailed examples involving multi-level BOMs, internal and external requirements, and dynamically evolving sales orders. Whether you're currently using Apache OFBiz for manufacturing or evaluating it as a potential MRP solution, this document provides a clear view of its planning capabilities and how they can help optimize your operations. It’s particularly useful for supply chain managers, production planners, and operations leaders who need a reliable, simulation-based approach to material planning. Special thanks to Jacopo Cappellato for contributing the precise requirement formula that enhances the clarity and accuracy of the document. We also appreciate the thoughtful reviews and feedback from Yashwant Dhakad and Swapnil Shah, which helped improve the quality of the final version. We hope this resource proves valuable and welcome your feedback and suggestions! Thanks -- Divesh Dutta
