In WP1, It is used in the following cases:
- The material is transferred from another plant
Example: A material 1234 is produced in Plant a and then transferred to plant b.
In the master data of the material code 1234 in plant b a code "xx procurement from plant a" is entered in the field "SpecProcurem Costing"
- The material is produced by a third party, use 30
- The material is a byproduct that has no production version use 20
- In other cases leave it in blank.
The code can also be maintained by the supply chain in the view MRP2, in the field Special procurement.