In this work step, you can determine the proposal values for the item categories of the order components.
The proposal values can be determined dependent on the material type and the maintenance plant.
If it states in your system that raw materials are basically materials kept in stock, you can assign the item category for components kept in stock to the material type for raw materials.
In the standard system, this would be the entry 'ROH' with the item category 'L' (stock item).
The maintenance plants, material types and item categories for components must be set up.
In any case, you should include an entry without the material type (value SPACE for the material type).
This entry is then always used if you want to obtain a component without a material number in the order. You should assign the item category for non-stock components to this entry. In the standard system, this would be the value 'N'.
In the case of item categories which refer to non-stock components, for example, item category 'N', purchase requisitions are generated from the order.
The values defined here are then used, if you assign components to the order without a BOM reference.
If you assign components to the order using a BOM, the item categories are transferred from the BOM item.