sap pp - Scrap Calculation

[Former Member]

Hello SAP-Guruu2019s

Can anyone tell me How Scrap Calculation is performed or maintained in PP.

[Former Member · Accepted solution]

Hi

Scrap setting is there in material master, in BOM and in routing. It depends what type of settings do u require. But note that nowhere u can get inventry of scrap. If that is also needed then create a scrap code and assign as by-product in BOM with -ve qty. So that system also will calculate scrap based on the order qty.

[Former Member]

jh

[former_member188212]

Dear All,

Request you guys to let me know how to calculate the Assembly scrap. I am giving an example below for your reference. The same I am not able to understand. Please guide me.

Operation 10 uses a quantity of 100 pieces as start quantity. A scrap of 5% has been defined giving a scrap qty. as 5 pieces and an operation yield as of 95 pieces.

Regards,

Rahul

[Former Member]

jh

[Former Member]

HI

there many types of scrap in SAP , it depends on the process scenario,

generally the industry see on valuation , wethere the sracp i svaluated or without that,

so we do maintain the valuted stock in the BOmas negative qty (as per the plan)

so when we do Gr for production order the scrap also posted as stock.

(ex Material A produces 100KGqty with this A1(scrap) comes out with 1KG this 1kg is maintained as -ve in BOM)

-ashok

[Former Member]

HI,

Calculating Scrap

Use

You can calculate and plan the scrap quantity that will result from production. These scrap quantities are then included in the planning run and in the calculation of production costs.

Prerequisites

Which calculation the system uses depends on the settings in the material master record or in the BOM.

Features

The scrap quantity is settled against the net requirements quantity.

Three calculation procedures are supported by the system:

Assembly scrap

Component scrap

Operation scrap

Assembly Scrap

Use

You use this function to plan the scrap that results from the production of an assembly.

Prerequisites

You have maintained the assembly scrap in the material master (MRP 1 view) as a percentage in the Assembly scrap field for the assembly header material.

Features

The system automatically increases the quantity to be produced by the percentage of scrap.

However, the system always uses the estimate yield for the availability calculation for the assembly. Furthermore, the estimate yield of the assembly is always displayed in the MRP list or in the stock/requirements list.

Assembly scrap increases the order quantity of the assembly and subsequently increases the order quantity for corresponding components. The dependent requirements of the material components are therefore increased correspondingly.

Example

Estimate yield

200

Assembly scrap

10%

This results in a scrap quantity of

20 pieces

and a required quantity of

220 pieces

Component Scrap

Use

You use this function to plan the scrap of a component that may break during production of an assembly.

Prerequisites

You have entered values for calculating component scrap in the material master or the BOM:

in the BOM on the Item Detail Screen: General Data (data block for quantity data). This component scrap is only relevant for the individual BOM.

in the material master (view MRP 4) in the Component scrap field. This component scrap is relevant for all BOMs.

The component scrap quantity maintained for a material component in the BOM has the higher priority.

Features

Component scrap increases the dependent requirements quantity of the component.

If a scrap quantity was planned for a higher-level assembly, assembly scrap and component scrap are added to the component level.

Example

Estimate yield

200

Assembly scrap

10%

Component scrap

10%

This results in a scrap quantity of

42 pieces

and a required quantity of

242 pieces

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.

I

f 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.

HOpe this helps.

Regards,

Tejas

Edited by: Tejas Pujara on Sep 26, 2008 8:26 AM