Material Model
Materials are the substances or components that are used to make something else. A material can be a finished product in its own right, or an unprocessed raw material.
The material model is made up of material definitions and material classes that are used in the manufacturing or production of a product.
Material specifications are not created as material resources, but are material definition or class resources that are associated with work process segments.
Note: You can configure up to 5000 properties for each material definition and 1000 properties for each material class, and you can add up to 50 material classes to each material definition for a maximum of 55000 properties per material definition.