(This book absorbs the advanced theories, method systems and some successful experiences adopted by Huawei's enterprise logistics solutions in recent years, and achieves a good combination of universality, advancement, theory and practice in content. The first attribute of this book is its comprehensiveness. The content includes a comprehensive 6 program business modules, including maintenance program parameters and environment, formulation of demand programs, adjustment of main production programs, formulation of material programs, analysis and control programs, and program statistics; it also introduces program development history, sales programs and forecasts, Basic knowledge of R&D logistics solutions, BOM, and MRPII principles, as well as phased results of ISC, an enterprise-level transformation project. The second attribute of this manual is practicality. From the basic scheme theory to the business process, from the business process to the detailed operation guidance, from the positive operation guidance to the negative case, it answers the question of "how to do the scheme" from multiple angles. The third attribute of this manual is the combination of theory and practical experience. The authors of this book are all business backbones who have been engaged in the production plan office for a long time. They not only absorbed the advanced plan theory, but also wrote out their own experience and experience in the office.)