Operation Scrap (SAP Library - Material Requirements Planning (PP-MRP))

Operation Scrap

Use

Before high-value components are built into an assembly, the system carries out a quality control check of the assembly, if necessary. Faulty materials that were taken into account in assembly scrap are not passed on to the next operation. They are removed.

Therefore, for a high-value component, you plan using operation scrap instead of general assembly scrap.

Prerequisites

You have maintained the operation scrap in the BOM, on the Items Detail Screen: General Data, under quantity data. You must also set the operations scrap net indicator at the same time.

Features

This scrap quantity refers to the quantity of one component that is to be processed in an operation meaning that the planning run is more exact and you can determine service and quantity consumption more precisely.

If the component is contained in an assembly, for which an assembly scrap quantity has been maintained, the system only takes the operation scrap into account.

The net indicator instructs the system to calculate the component operation scrap without taking assembly scrap into account (net usage scrap).

You should also set the net indicator, if operation scrap has not been maintained and assembly scrap has been entered. The assembly scrap should not, however, be taken into account.

Example

	Quantity to be produced (required quantity)	1,000 pieces
	Assembly scrap	10 %
Component 1	Operation scrap	No entry
	Net indicator	Not set => assembly scrap is taken into account
	=> Scrap quantity	100 pieces
Component 2	Operation scrap	1%
	Net indicator	Set => assembly scrap is not taken into account
	=> Scrap quantity	10 pieces

Before component 2 is built into the assembly, the incorrect assemblies are rejected and the system only takes the smaller operation scrap quantity into account. Therefore, component quantity of component 1 refers to 1,100 pieces to be produced; and the component quantity of component 2 refers to 1,010 pieces to be produced.