Dependent requirements in pp module

I am new to pp and leaning PP module. following terms and concept I am not able to understand
1. what we mean by dependent requirements?
2. what we mean by independent requirements?
3. what we mean by net requirements?
4. what we mean by total requirements?
5. what we mean by unplanned requirements?
please explain in layman terminology. I am not able to understand definitions given by sap.
Edited by: kavita reddy on Mar 2, 2010 11:35 AM
Edited by: kavita reddy on Mar 2, 2010 11:35 AM

Hi,
To put it in simple words consider the following examples:
in a car manufacturing company, lets say Swift:
The sales department forecast the sales for swift which is sent to the production depaertment.
This requirement for the finished product is called Independent Req.
Now based on this dependent req, you will have to have the other material like tyres, engines etc.
This engine, tyres etc are forecasted based on the dependent req.
This are called Dependent Req.
Net Req: Lets say your total Dependent Req for tyres is 100 tyres, and you have 20 in stock, so 80 will become your net req.
Regards
Vinod
Edited by: Vinod Mohan on Mar 2, 2010 4:50 PM

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I have to call the dependent requirements created by MRP run in my report. Can anyone please tell me that where these dependent requirements are stored in the database or is there any function module to get these values?
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Dear,
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NPROC:Dependent requirement not getting generated

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Infact, the MD04 screen of the FERT material shows NROC in the MRP element data for the given period.
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Edited by: Rishi. N. Khanduri on Jan 28, 2010 3:08 PM

Harendra,
Are you using "NETPL" as processing key for MD02? After 3 or 4 days is the dependent requirment getting created automatically or is it after MRP run again?
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Hey Gurus,
I have a situation in which I have two materials that are planned with Independent requirements but also have dependent requirements against them. these two materials are 6001116 and 6001771. I have set the MIXED MRP indicator to "1", planning strategy "40" and MRP Dep. requirements as "1".
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Dear,
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I have checked the component Stock Requirement List - there are no requirements generated from the Sales Order Product BOM.
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Hi Dhaval, Sandeep, Ashok - Thanks a lot for your replies.
I have checked the Planned Order Created through Planning Run.
If I click on the Components Tab I am getting following message
No material components were determined
Message no. 61027
Diagnosis
Until now, no BOM explosion has been carried out or no BOM has been created for this material yet.
Procedure
Either explode the bill of material for this material, or
create the components manually by processing the planned order in change mode.
If I try to explode the BOM through Header Menu - Edit> Explode BOM
I am getting the same message.
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Nil - Selection by Order Quant.
1 - Selection by Explosion Date
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Thanks and warm regards
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Hi Uli,
Suppose i have Sales order--100 kgs for FG
B.O.M levels
1.FG-----M.T.O
2.SFG1---M.T.O
3.SFG2---M.T.S
4.SFG3---M.T.S
5.ROH
So if i run MRP via MD50 system would generate planned orders for FG & SFG1 level as they are M.T.O specific
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FG-100kg planned order
SFG1-100kg planned order
SFG2-100kg dependent requirement.
Now suppose i have partially converted SFG1 planned order to production order
SFG1--100kg planned order to 30 kg production order
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FG-100kg planned order
SFG1-70kg planned order & 30 kg production order
SFG2-70kg dependent requirement & 30kg order reservation.
Here my requirement is if i run MRP for SFG2 in MD02 as these stage is M.T.S system should provide 30 kg planned order & if we see down the line it would be like
Now my requirement list would be
FG-100kg planned order
SFG1-70kg planned order & 30 kg production order
SFG2-30kg planned order & 70kg dependent requirement.
SFG3-30kg planned order
ROH-30kg Purchase req
Client requirement is like these..

Dont want dependent requirement after MRP

hi all
I dont want dependent requirement after MRP?
means A is a header material and B.C are the component
after MRP run system should be created requirement of component item.
so wht r setting required?
plz guide me

Hi,
First you ask how can you carry out settings not to get DepReq for your components than you say system should create requirements for your components.
Please give a clearer picture of your situation and make your question more clearer.
How do you procure your goods (if you do not use MRP)?
If you do not want DepReq for your goods you can:
- remove them from the BOM (use them as text item, use design BOM - I do not know your situatio)
- you can set the MRP type in material master as 'ND' (not planned) (MM02 > MRP1)
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Thanks,
Csaba

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In Material Master in MRP4 view there is one field under Bom Explosion/Dependent requirement individual/coll. when we select indicator 1 it generates requirements individually and when we assign indicator as 2 system cumulate the requirement,but if we keep that field blank i.e. individual and collective requirement how system decide the priority for individual and collective requirement.How system behaves in that condition.
With Regards.

I am asking about ROH BOM components.
Dear ,
Yes I know, If you maintain collective indicator for header material, IF the ROH as blank in indiv/collective indicator, ROh material behave like collective reqmt
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Dear All,
I have a concern regarding the "MRP 4" view in MM.
BOM/Explosion
Individual / Collective requirements
"MRP 3" view
Availability Check
Availability Check (Daily / Individual)
I would like to know the effect of these settings clearly with an example please.
Thank you in advance

Hi,
1. The Individual Collective indicator 1/2 indicates how to club the dependent requirements either Individula Processing or Collective Processing.
This is generally used in MTO Scenario.
Here, For eg., you have 2 FERT Materials, in that 1 component say xyz is same.
If you want to club the requiremnts for for xyz for both the sales orders then you need to select 2.
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Specifies whether and how the system checks availability and generates requirements for materials planning.
The availability check can be carried out in MRP for the depedendent requirements. This means that the availability check can directly check whether sufficient material is available for the production of the assembly. The availability check is initiated from planned order processing. It is not carried out automatically in the planning run for each requirement of an assembly.
Checking Group and Checking Rule clubbed together forms the Checking control..
Hope this helps..
Regards,
Siva

Dependent requirements

Dear friends,
For example I am having a Sales order for 20 items. Due to some constrains, at a time I can not produce more than 1 item. So I am creating a production order for 1 item with reference to a sales order (using CO08).
My problem is while running MRP, system is creating the dependent requirements for all the 20items. So I want to run MRP for the production order (like MD50 for sales order). Otherwise my MRP run should not consider the Sales orders for the dependent requirements calculation.
Dependent requirements for all the 20 items is creating a big confusion. My scenario is pure MTO. Down the line all the production is for the respective sales order only.
Please suggest me...
Regards.

Hi Kodand Nag,
Please explain your scenario once again, I get confused little bit,
What I understood from your last reply, u have created sale order with order qty is 20 nos for one material. (I assume).
Then u have created prod order for one Nos (Partially since is capacity constraint) with reference to sale order.(CO08).
In MTO, system consider the sale order to create dependent requirements for dependent material.
Here u want system to consider production order not sale order requirements This is not possible.
My solution is since u have converted partially qty as Production order, order reservations should have created for dependent material, if u run the MRP for dependent material (Next one below the header material) , sale order requirements is not taken into the account only production order req. I hope i am not mistaken, else please comeback.
Regards
Pradeep

Dependent requirements in pp module

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