Classes as Place Holders Components in Super Bom

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Generated by Jive on 2012-07-12+02:00

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SAP ERP Manufacturing - ProductionPlanning (SAP PP): Classes as place holders( Components in Super BOM)

Posted byRitesh DubeJun 28, 2012

Hi Friends,

As we all know, Super BOMs are used in Variant Configuration, which contain contains all the components that

are required to manufacture the material.

But there is one more option available in SAP to use Classes as BOM Items.

You can use class items to control the selection of variant parts in a BOM. Variant parts are classified in a

class, and this class is entered in the BOM as a class item. When you configure the material, the class is

replaced by a suitable variant part.

Class items can help you to simplify maintenance of BOMs for configurable materials: ( 1 )

You only enter one item for the class, instead of several items for the individual variant parts.

You do not need to create and assign selection conditions.

You can classify additional objects in the class at any time, without having to change the BOM.

Lets take example of Super Bike, it have 3 parts which have 3 possible combinations.

BIKE

COLOUR ENGINE EXHAUST

RED 1200 EXHAUST- 1

BLUE 1500 EXHAUST- 2

Variants

Black 1800 EXHAUST- 3
http://scn.sap.com/people/ritesh.dube


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SAP ERP Manufacturing - Production Planning (SAP PP): Classes as place holders ( Components in Super

BOM)


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If we create SUPER BOM for it we need to Create BOM with 9 items and write dependencies (Selection

Condition ) for each item position.

Below are the steps to Create Class BOM.

1) Create characteristics that describe the objects

Transaction CT04

Characteristic Name: COLOUR , Allowed Values RED, BLUE, BLACK

( 2 )
http://scn.sap.com/servlet/JiveServlet/showImage/38-67613-107800/1.gif


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BOM)


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CHARACTERSTIC ENGINE

( 2 )

CHARACTERSTIC EXHAUST


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BOM)


4

( 2 )

Create Class: COLOUR , Transaction CL01, Create Classes of type 200 & 300 with same

name.


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BOM)


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( 2 )

Input previously created Characteristic COLOUR in it.


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BOM)


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In class type 200 maintaion Unit of measure, resultant item category and allowed in BOM

indicator


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BOM)


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http://scn.sap.com/servlet/JiveServlet/showImage/38-67613-107805/200_Colour.gif


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BOM)


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( 2 )

Class: ENGINE
http://scn.sap.com/servlet/JiveServlet/showImage/38-67613-107806/200_Colou_additional+datar.gif


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BOM)


9

( 2 )

Input previously created Characteristic ENGINE in it
http://scn.sap.com/servlet/JiveServlet/showImage/38-67613-107807/200_Colour.gif


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BOM)


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Class: EXHAUST
http://scn.sap.com/servlet/JiveServlet/showImage/38-67613-107808/200_engine.gif


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BOM)


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( 2 )

Input previously created Characteristic EXHAUST in it.

Create Material Master: SUPER BIKE, and Include these Classes in Classification View.
http://scn.sap.com/servlet/JiveServlet/showImage/38-67613-107809/200_exhaust.gif


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BOM)


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( 2 )

Create Configuration Profile for Super Bike , Transaction: CU41
http://scn.sap.com/servlet/JiveServlet/showImage/38-67613-107810/material+with+300.gif


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BOM)


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( 2 )

Create BOM for Super Bike, Transaction: CS01
http://scn.sap.com/servlet/JiveServlet/showImage/38-67613-107811/Config+profile.gif


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BOM)


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( 2 )

Go To Class Tab and add the classes as shown below
http://scn.sap.com/servlet/JiveServlet/showImage/38-67613-107812/Bom+1.gif


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BOM)


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( 2 )

Create Material: Paint Red
http://scn.sap.com/servlet/JiveServlet/showImage/38-67613-107813/Bom+2.gif


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BOM)


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( 2 )

And in Classification view, add class COLOUR with value 01(RED)

Repeat same to create other 8 materials tied up with other value combination ie Blue, Black,

1200 CC, 1500 CC, 1800 CC etc

To test this setup , Go To Transaction CU50
http://scn.sap.com/servlet/JiveServlet/showImage/38-67613-107814/Material+red+paint.gif


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BOM)


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( 2 )

Assign values to characteristics
http://scn.sap.com/servlet/JiveServlet/showImage/38-67613-107815/CU50.gif


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BOM)


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( 2 )

Select Result

Classes presented in BOM will be replaced by material number associated withcharacteristic values.
http://scn.sap.com/servlet/JiveServlet/showImage/38-67613-107816/Config+check.gif


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BOM)


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( 2 )

If in result screen, more then expected items are appearing or same item is appearing twice please check sap

note on

"A specialized class item is displayed twice in the result screen of the

configuration" SAP Note
https://service.sap.com/sap/support/notes/969288http://scn.sap.com/servlet/JiveServlet/showImage/38-67613-107817/Result.gif


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BOM)


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Advantages ( 1 )

For products with many variants, class items make the bill of material easier to maintain.

The class item is used as a placeholder for an item, and has several objects allocated to it (for

example, screws from different suppliers). Each object has a unique identifier in the class. Which

object is replaced for the class item depends on the characteristic values that are required for a

particular configuration of the material.

If you enter all the possible objects for an item individually, you must allocate a selection condition to

each item, so that only the component you require is selected when you configure the material.

If you use a class item, you no longer need to maintain these selection conditions. When you configure the

material, the system selects the component whose characteristic values in the class are identical to those

required for this material.

Material requirements planning (MRP) is supported for class items. In Customizing functions for MRP, you

can define that a check is made in MRP as to whether an order BOM exists. If an order BOM does exist,

requirements for a material selected from a class item are transferred to MRP.

Disadvantage (1 )

In a class item, the item quantity is always the same, regardless of which classified material is selected. For

this reason, only use class items in cases where you use the same quantity of different materials.

Appreciate if people who used it in their previous implementations can share their thoughts

on this approach.

Please do comment and rate this blog.

Best Regards

Ritesh

References:


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BOM)


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( 1 ) Text is copied from help.sap.com

( 2 ) Screens are captured from SAP IDES ( SAP ECC 6.0, release 7.8.01.014 ) , all master data is created by me

340 Views Tags: bom, classification, variant_configuration, super, classes

Jun 12, 2012 7:58 AM Ritesh Dube

Hi Experts,

During editing blog got deleted and i lost all your valuable comments.

Appriciate if you can comment and rate it again.

Thanks

Ritesh

Jun 16, 2012 11:48 AM Monst Yang

hi,Ritesh :

I did some test follow your blog and I had two question about it..

1.During testing the setup in CU50,the K item is duplicated.I mean the same item show uptwice.http://scn.sap.com/thread/3192703 I post a question here ,can you help to have a look

at it..thanks..
http://scn.sap.com/thread/3192703http://scn.sap.com/people/ritesh.dube


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BOM)


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2.CS01,your last fifth screenshot,"class" column,why you can enter a class them?I have to

enter item cat. K and then doulble click the line to enter K class then I cann't see the class

name in "class" column .(it's not a problem,I am just wonderring why)

Jun 18, 2012 5:58 AM Ritesh Dube Monst Yang in response to

Hi Monst Yang,

Thanks for your testing this functanility, Appriciate if you share your findings with

group.

also repleid your thread.

http://scn.sap.com/message/13329698#13329698

appriciate if you can rate this blog too.

Thanks

Ritesh

Jun 18, 2012 6:03 AM Ritesh Dube Monst Yang in response to

and i didnt understand your 2 nd question, if be easy if you add a sreen where you need to

double click for adding class.

in CS01 , if you are creating this BOM for a comfigurable material , the TAB with clas will

be automaticaLy available there, and you can enter classes there, other wise on material

screen , this class will not be visible , just check it , you must be having a tab in BOM for

class and all the classes will be visible there.
http://scn.sap.com/people/monst.yanghttp://scn.sap.com/message/13329698#13329698http://scn.sap.com/people/monst.yang


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BOM)


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Thanks

Ritesh

Jun 18, 2012 6:41 AM sunil kumar. T

Hi Ritesh,

Thanks a lot for sharing the information in a detailed way.

Regards,

sunil

Jun 18, 2012 6:44 AM Ritesh Dube sunil kumar. T in response to

Thanks sunil , for comment.

appriciate if you can rate this blog too.

Ritesh

Jun 18, 2012 10:16 AM Monst Yang Ritesh Dube in response to

thanks..I already rate it.

Regarding my question about dupliated K item,any IMG setting need to be done before

using K item in BOM?I still have that problem..


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Jun 18, 2012 10:21 AM Sulabh Suryawanshi

Hi Ritesh,

Thanks for sharing important information in detailed way...

Regards,

Sulabh

Jun 19, 2012 6:05 AM Ritesh Dube Sulabh Suryawanshi in response to

Hi Sulabh,

Thanks for comment.

Ritesh

Classes as Place Holders Components in Super Bom

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