MRP not plalned for dependent components

[Former Member]

Hi,

i have maintined all master PP master data, when i rum MRP my depandent componts have not planned during MRP run.

i have maintined safety stock for the header material and was expecting depanded comopnets planned/PR's.

Edited by: Sreedhar Galam on Jun 7, 2010 2:46 PM

[former_member196398 · Accepted solution]

Sreedhar,

Did MRP create Planned order for the Header material? If so does it have components or do you see an execption message "52" (I think) no BOM found message against the planned order in MD04?

Regards,

Prasobh

[Former Member · Accepted solution]

Dear's

Yes, it is not picking the BOM , the message showing is 52, I have checked everything and looks OK, while checking STPO table i found same BOM number(BOM no from MAST table) for two different BOM categories(Mat BOM and Equipment BOM) with two different validities in the past.

Will this create any issue?

[former_member196530 · Accepted solution]

Dear ,

Based on the Message you are getting -52 , I have doubt what is set up you have provided in the MRP4 view -Selction of BOM/Routing ? .

1.It should be Blank or 1 if you do not maintain PV in your case .I mean it can be

1. Blank -Selection by order Qty 2. Selection by explosion date -it depends on the set up in OPPQ-BOM Explosion -Date/Number.

2.Goto -CS02-with your BOM number -Header -Ststus Long txt -Check wether you have kept BOM Status-1-Active

3.Check in CS02-the Validity of the BOM and Usage -1 Or 3 in this case

Check all those above from your side and come back us

Regards

JH

[Former Member · Accepted solution]

Dears

Initial situation for header material was

MRP type : PD

Lot size : MB

Safety stock : 100

Results : MRP gave me Planned orders for header and no planned orders for components

My problem was resolved by changing the materials master settings Lot size to EX, then I got the planned orders for both header and components.

However I am failed to understand what is the link between lot size MB of header materials and not having dependent components planned orders during MRP RUN?

[former_member196530 · Accepted solution]

I am still in fix ! .If you have maintained EX in Header material , it was supposed to plan if all the lower level material master parameters are in place .

MB means it will consolidate the dependent requirement in a month under one PR or Planned Order if i m not worng based on the planing startgey as well as Individual and Collective indicator .

Regards

JH

Edited by: Jiaul Haque on Jun 8, 2010 3:03 PM

[Former Member · Accepted solution]

Hi,

Planned order scheduling depends on the configuration for lot size..you can check in SPRO, for lot size EX, scheduling is Requirements date := delivery date. Whereas for lot size MB, scheduling is 1 (Period start := delivery date). there is a scheduling problem so planned order is not created...you can check in customizing..

[former_member196530 · Accepted solution]

Dear ,

Is that MTO order for FG?

I think if the schedule delivery date or requirement date in the sales order is in the past then based on the Lot Size -Scheduling Indicator , MRP will not generate planned order even it will explode the BOM.

Regards

JH

[former_member196398 · Accepted solution]

Sreedhar,

In your case the reason is obvious order start date for the Header Material planned order is lesser than the BOM validity start date, i think the BOM was created effective a latter date.

With lotsize procedure EX the requirement date = delivery date.

With lotsize procedure MB the Period start date = delivery date.

Assume you have create BOM effective from 05/06/2010.

With LotSize EX and you have a requirement falling on say 08/06/2010 and order lead time in 1day, during MRP run Planned order is createdfor the header material to start on 07/06/2010 and the BOM is exploded effective this date.

Incase of Lotsize procedure it might create the Planned order to start with 31/05/2010 and BOM is exploded for date 31/05/2010, in this condition system cannot find a BOM so the planned order will not have components and hence the dependent requirments are not planned.

Hope this helps your understanding,

Regards,

Prasobh

[Former Member · Accepted solution]

Dears

Yes, i agree with yoru explnation that BOM was not exploded incase of monthly lot size MB as scheduling is Period start := delivery date. and my safety stock stock requirment (Today delivery date) was going in the past (period start)and its failed to pick the BOM during MRP.

Thanks for your all explanations.

[former_member196530]

Dear ,

Please check the following for the dependent component for FG :

1.MRP type should not be ND -MRP1 view

2.Material should have Procurement Type -F or X at least -MRP1 view

3.Check wether MRP Depenet Req filed should be Balnk not 1 in MRP4 view in MM02 of those BOM componenent

4.Check Planning File Entry for all those items in MDRE/MDAB/MD21/MD20

5.Check wether u have set Delition Falg or Lock thsoe material or set 01-Bolcked for procumeremet in Basic Data -X plant status .

What are the set up are u using in MRP run in MD02 .It should be NETCH , 1,1,3,3,2 basically .

Check them and get back to us .Hope this will help u to trace the reason

Regards

JH

Edited by: Jiaul Haque on Jun 7, 2010 3:53 PM

[Former Member]

Hi,

Points to check .

Whether the BOM has active status

No stock for components

Planned order genetrated for header material

Planned order should have same components as BOM material.

Regards,

Vishal