In this step, you can specify purchasing account assignment categories and a purchasing document type for purchase requisitions in the production order.
In the purchase customizing, you can define document types and account assignment categories independent of the standard settings.
In the standard R/3 System account assignment categories and a document type for purchase requisitions has been predefined.
If you have defined your own account assignment categories and document types in purchasing, you have to maintain the respective entries.
For production orders, only the Document type and the account assignment category General columns are of any importance.