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Necessity of WBS BOM

Former Member
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Hi Gurus,

I am working on a PP-PS integration scenario. If I have a multilevel Material BOM and the header item is the final product. I had attached this in the network activity with Item category as L. I have not exploded the BOM here. To proceed further with MRP, what i am doing is correct or should I create the WBS BOM as well? If so, what is the necessity of WBS BOM ?

thanks in advance.

Vinodh

Accepted Solutions (0)

Answers (4)

Answers (4)

nitin_patoliya
Active Contributor

Friends, Here the question is what does it make difference if person is using WBS BOM or Material BOM in PS-PP scenario.

Both are same for the scenario perspective.

For the material you can create only one Materail BOM, For the same material no. you can create diff. Bill of material that can be distinguished by diff. WBS no. This is perticularly useful when you are working of Sales project, for every project final product will be the same say turbine but dimensions & specification very from project to project. So, instead of creating new material Master of every project keep only one Material BOM ( and copy the same in you WBS BOm and make change according to your requirement )

This is the only diffrence between them. Now check your requirement, If you are not using VC and you production is make to stock you can go ahead with MM BOM. WBS BOM mostly used in SD- PS Scenario.

With Regards

Nitin P.

Former Member
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Dear Friends,

Here the BOM is not only one point. Here the main point is Cost Estimation. When ever the PS and PP is working, See the Conditions:-

1) If we Prepare the Material BOM then the Cost Estimate is required thrugh CK11N, CK24 etc.,

2) If we prepare the WBS BOM then the Cost Estimation is required through CKW1, How we can replace the transaction code

CK24 in this Process, why because The Price of the Cost Estimation need to be update to the Master Master Record.

If any great minds can through any light on this?

Regards

Former Member
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Thanks Raj & Nitin for your wonderful clarifications.

Raj, you had mentioned about the usage of negative indicator in the quantity field... When one has to use the negative indicator in the quantity field.. If i have to execute automatic GR, should i maintain -ve indicator ?

thanks once again.

Former Member
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Hi,

What i mean to say is :

1) Create a Material BOM

2) Do a Costimation in CK11N, etc.

3) Manually assign the BOM to Particular Activity there u mnction all the rematerials with required qty and finally maintain the FG material with -1 Qty. (Or) Create a Finished Goods material only with Position Qty under the Activity

4) Create A Production Order in that assaign the WBS - CO01

5) Issue to the Material to that Production Order - MB1A

6) Confirm the Produtin Order - CO11N

7) Done good receipt from the Prduction Order to the Storage Location - MB31

:smiling_face_with_sunglasses: Delivery - VL02N

9) Billing - VF01

Regards

Former Member
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Hi,

Hi Raj,

I am sorry but I am getting confused with this solution.

What i mean to say is :

1) Create a Material BOM :

2) Do a Costimation in CK11N, etc.

3) Manually assign the BOM to Particular Activity there u mnction all the rematerials with required qty and finally maintain the FG material with -1 Qty. (Or) Create a Finished Goods material only with Position Qty under the Activity: Once you have attach the FG with negative qty, it will show that you are going to get a FG if this activity is completed or confirmed.

4) Create A Production Order in that assaign the WBS - CO01: If you manually create production order here, then what about earlier step no. 3. The reservation showing available qty will keep showing in MD04.

Attaching FG with negative qty and then again creating production order for it is not making sense to me.

Is anybody agrees with me ?

Regards,

Mahendra

Former Member
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Thanks all of you for your valuable suggestions. Thread closed.

Former Member
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Dear Vinvidh_18,

As per as my experiance; if your working with PS - PP Integration; it is a very difficult to map senarios, why because PP and PS has the similiar process or transaction codes.

Here i am suggesting only, Dont go for WBS BOM.( If your working with the PP).

1) Material BOM is the better option.

2) Attach the Finished Goods to the Activity under Network. Or manually Create the FG and RM under Activity (Caution should

be taken care while creation of this, use -1 for FG under the Activity)

3) Dont go for Network Order use the Production Order as a Cost Object (Assaign the WBS in the Production Order)

Remaining Process is normall process like Production Order Confirmation etc.,

Regards

Edited by: raj on Dec 30, 2009 1:56 PM

Former Member
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But Mr. Raj, if you attach FG in negative quantity to network activity how system will generate planned order for it. I think if your point no. 2 is not consistent with point no. 3.

Correct me if I am wrong.

Regards,

Mahendra

Former Member
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This message was moderated.

Former Member
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Thanks for clarification for point no. 1.

But for point no. 2, I am still not convinced that if I attach quantity as -1 qty of component, then it is not requirement for MRP. So MRP will not generate any planned order or Purchase Req. It will show it as excess quantity available in individual segment.

Regards,

Mahendra

former_member203108
Active Contributor
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Why do you think you need a WBS BOM?

Read about BOMs and various types of BOMs in SAP HELP.