Variable-Size Items 
If you want different-sized sections of a material (raw material) to be represented by one material number in BOM items, you use this item category.
Before you start
A valid material master record with a material type that supports stock must exist in the plant you select.
Special functions
On the Detail Screen: Variable-Size Item Data, the system automatically calculates the quantity of the variable-size item required from the sizes and any formulas entered.
Different-sized sections of a material (for example, sheet metal) can be stored under one material number.
- You can group together all alternative variable-size items into an alternative item group.
- You can use the discontinuation control function to transfer dependent requirements to a follow-up item if they are no longer covered by sufficient stock.