Master data is the essential data (about products, locations, resources, production process models (PPMs), and so on) that is necessary to build a supply chain model and execute planning.

In addition to the general data mentioned, you also have to create specific master data for each of the planning methods used in Supply Network Planning (SNP). For example, to execute extended safety stock planning, you have to enter specific data on the Lot Size tab page in the product master. This specific data includes information about safety stock, safety stock method, service level, and so on. For information about the master data considered by the different planning methods, see the topics listed below.