The special procurement code is used to override the procurement type in the material master or define the procurement type more precisely.
The special procurement code 30 is used when the material is subcontracted
A special procurement code is used to indicate that the material is produced in another plant.

For SpecProcurem Costing:
- If the material is transferred from another plant, use the matchcode to put the correct code;
- If the material is industrialized on third party, use 30;
- If byproduct that has not BOM production use 20;
- In other cases leave it in blank.