Non-Stock Items 
Use this item category if you want to enter a material that is not kept in stock before use, and that is only procured for a specific planned order or production order.
The material is only rarely required for a custom-made product and is used directly in the product as a purchased part.
Before you start
You can enter a non-stock item either with or without a material master. If you enter a non-stock item without a material master, you must enter a description. For non-stock items, you have to maintain purchasing data in the bill of material.
You enter the following materials as non-stock items because the quantities are not updated in the material master record:
- Materials with a material type that supports configuration
- Pipeline materials, which can be taken from a pipeline at any time
Special functions
The following functions are supported for non-stock items
- You maintain purchasing data for non-stock items in the bill of material.
- In the planning run, the system generates purchase requisitions instead of dependent requirements for components that are procured directly. When you configure your R/3 System for MRP, you can define whether direct procurement is triggered by the planning run or by production order management.
- Product costing processes take valuation data from the BOM item.
The system determines the release strategy on the basis of the price data you enter. The material group is required to produce a purchase requisition.