What is Dependent Requirement????

Hello all,
Can anybody tell me what is DEPENDENT REQUIREMENT in MRP??? I am running MRP for my material and the MD04 transaction is showing some dependent requirement. Altough the results in MD04 are correct, I didn't understand what is this dependent requirement since I am basically a MM guy, not PP. So if any one of you know what is this dependent requirement please let me know. Also tell me what is its purpose??\
Thanks and Regards,
Umakanth.

Dear umakanth Rao,
Let's assume A is our finished product or final product,and I plan to produce 100 quantity of A.
For producing 1 quantity of A let's assume I need 1 quantity of B & 1 quantity of C,where B & C are raw-
materials or bought outs.
So after entering the planned independent Requirements for my product A in T code MD61,after taking
MRP run in MD02 for the material A,the system generates the planned orders for A and Purchase
Requistions for materials B & C for 100 quantity as per the BOM,so here B & C are the dependent
requirements.
Also check the below link,
[Dependent & Independent Requirements|Requirements]
Regards
Mangalraj.S

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Hi Experts,
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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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Do reward points for useful answers
Edited by: Ramakrishna Rallapalli on Jun 16, 2008 9:06 AM
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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

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).
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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.
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List of dependent requirements of planned order for a component

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I am working in a MTS scenario,where 'X' is the Header Material & 'Y' its Assembly(with small sub-assemblies inside).
Now 'X' is produced on order as well as some std.ratings forecasted.Basically strategy '40' (Planning with final assembly).
Assembly 'Y' is produced for stock(in anticipation of incomind orders for 'X') as well as sold.
Planning is done basically for 'X' as well as 'Y' in the PIR Planning table.
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Usually in this scenario we use strategy 70 for Y
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You can plan 70 weel in advance, example- let us say you planned 100 TO for Y, Run MRP and start producing Y,
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Hello Experts,
Iam running the MRP for procurement. I have defined a planning horizon so that system will consider the requirements of that period. Iam using NETPL as my planning method in MRP. I wanted to create only purchase requisitions during this period so I selected 1 as my creation indicator as well.
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Hello
I believe that there is a misunderstanding about what exactly is the planning horizon. Using a planning horizon does not means that the requirements outside the horizon will not be planned.
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http://help.sap.com/erp2005_ehp_06/helpdata/EN/f4/7d274f44af11d182b40000
e829fbfe/frameset.htm
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Prathib,
What I am looking for is an overlap when I run MRP.
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http://help.sap.com/saphelp_erp60_sp/helpdata/en/f4/7d2b2b44af11d182b40000e829fbfe/frameset.htm
http://help.sap.com/saphelp_erp60_sp/helpdata/en/ea/e9b42c4c7211d189520000e829fbbd/frameset.htm
Best Regards,
DB49

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Edited by: Marcelo Kayro Quintão on Jun 28, 2011 8:06 PM
Edited by: Marcelo Kayro Quintão on Jun 28, 2011 8:08 PM

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