Bom selection in mrp

Dear All,
Can anyone explaine why MRP always selects the first alternative of Bom during MRP RUN?????
Regards
Prashant

Hello Prashant Patil,
If you have more than one BOM (Alternative BOM) and all are meetings (i;e. BOM Lot Size , Bom Status, valid area and period of validity, priority for bom usage in define order of priority of Bom ), in the required settings then the first Alternative will be selected by defualt in the MRP planning run.
Hope clear to you.
Regards,
R.Brahmankar

Similar Messages

BOM selection during MRP running

Hi,
   I have a question about BOM selection during MRP running...
   I have three production version and all of them are valid at the same time..I get a problem "no BOM data seletion" during MRP
running..I suspect it is due to that I have three production version and MRP didn't know take which one..Can anyone tell me
where can i config it or what's wrong with it in my situation?
   btw,BOM usage and stats are correct .so is the router data..since MRP is running well if i only have one PV..thanks..

Hi Monst,
Looking at the screenshots you uploaded, it seems that the validity of each of the production version is from 7.12.2011 to 1.12.2012.
Please check whether for Planned order no. 36659 alternative BOM no. 1 is getting selected (Since BOM selection ID is 2).
For planned order nos. 36660, 36661 and 36662, the start date is perhaps before 7.12.2011 and end date as we can see lies in the validity period of production version. Hence, neither of the alternatives of the BOM is getting selected.
For verifying the above logic, please make the BOM selection method as 3 (selection only by production version) and run the MRP. I think MRP will get terminated in this case since no BOM will be chosen for first planned order.
Just in case u need to select the BOM for planned orders, you can manually enter the production version no. in the planned order change mode.
Please tell if this helps and revert back.
Regards,
Chetan.

*URGENT -Alternate BOM selection in MRP*

Dear gurus
I have an urgent requirement regarding alternate bom selection.
our scenarion is complete subcontracting and no production versions are maintained and for suppose i have a product X which has 3 alternative boms during the sales order creation iam able to select the required alternative but during the mrp run the system is selecting the alternative "1" by default.I want that during the mrp run also the system should explode the bom which i have selected during the sales order creation not the alternate "1".
please reply.
regards
Kumar

Dear Dharma
in my previous post I havent got suitable reply from my previous post so i have posted again waiting for answers.
regards
Kumar

Bom selection during mrp

Hi, in oppq we are specifying the bom sel id as 01, pls explain how to see this sel id in bom for any fert material? how to link those.

Hi,
When you say you have 2 BOM's, are you referring to alternative bom's or bom usages ?
If it is BOM usage, then OS31 for ID 01 decides which BOM usage has priorty depending on the application where it is being used.
If you referring to BOM alternatives, then check the validity dates, the lot sizes of the 2 bom's. If they are identical & there is no difference between them, system by default picks the first valid alternative. But if you want to have alternative 2 picked, then you can work with production versions where you define version 1 with BOM altt. 2 & prodn version 2 with bom alt. 1. Set selection method in MRP-4 view to 2.
System will then pick bom alt 2. Alternatively you can set the BOM status to 2 at header level for bom alt - 2 as suggested above.
Regards,
Vivek

BOM selection in the MRP

Hello Gurus
   when MRP runs , what is the process of BOM selection. Are there any user exits to control the BOM selection.

Dear Vidyadhar Reddy,
For BOM selection you will assign the selection ID in T Code OPPQ --> under planning run -->
BOM/Routing selection.Say suppose if you are assigning an ID 01and for this ID you can have many
options using priority.
Say SelID     SelPr     Usage     Usage text
        01     1     1     Production
     2     3     Universal
     3     2     Engineering/design
So in This case the system seraches for a BOM with usage 1 production,if there's no BOM with this
usage for production,then it seraches the BOM with the next priority say universal BOM and then the
next priority for Engineering Design BOM.
This priority can be configured as per your business requirement in T Code OS31.
So the above is from configuration side and from the front end,
1. Using BOM status - Active(01) and Inactive(02).
2.Using Lot size and validity dates you can control the selection.
So check with this and revert back still if you have more queries.
Regards
Mangalraj.S

Exception Error Message (52) No Bom selected

Hi
a) I have created a simple 2 layer BOM ( level 0,1,2)
When I execute MRP run, I get the expection message - NO BOM SELECTED ( 52) for the 2nd level material.
Please advise.
Parthasarathy

Hi All,
Checked following before I posted this question and there are no problems with them:
BOM usage: 1
BOM status: 1
Valid from: September 2011
Lot Size for BOM and routing: 1
No deletion flags are turned on for BOM, material and components
BOM item Production relevant: yes
BOM materials are of same plant
Rerun MRP: yes... does not help. quantity of VSEB and plan orders can change but the message 52 still remains and does not explode.
This is only happening in my QAS system... production system with same material and information is ok.

BOM selection in Prodcution Order

Hi
Need help
I have alternarnate routings ( group counter 1 and 2) and BOMs (alternate 1 and 2)
for e.g. I have assigned Alternatte BOM 1 to routing GC1 and Alternate BOM 2 to Routing GC2 using component allocation in routings.
But when I create prodcution Order and select the Routing GC 2 also system is picking BOM 1 buy default..why its happening..
Could you pl share your thoughts on this nad help me?
Rewards points will be given immediatly
BR

Hi SAM
BOM explosion during MRP is based on the lot size or validity date. *Differentiate BOM from to lot size for both the BOM's.* Ex for BOM 1 from qty may be 0 - to qty 500, for BOM 2 from may be 501- to 9999999.
Then the system will select automatically the required BOM1 or BOM 2 based on the lot size.
If you maintain Both the lot size same. The systme will automatically select the first valid BOM.
As you said Routing also selected based on the lot size.
Otherwise as senthil said used PV scenario.
Hope this is clear.
Regards
J . Saravan

Alternative BOM problem in MRP run

Hello Experts,
We have two BOM for one material.Now I want to use BOM-1 for MRP run & BOM-2 for subcontracting.I have maintined following settings.
1) Production version.
2) BOM explosion selection method in MRP4 -2
3) Assign PV in inforecord for subcontracting.
4) Assign PV in MD61 in schedule line .
But when I run MRP it still consider subcontracting BOM.Have I missed any setting?
Kindly guide.Thanks you.

Hi, Follow the below process,
1.Enter the BOM selection method as 2 in the MRP4 view of the material master.
2.In case if you have not assigned the production version in MD61 against the PIR's under schedule line
tab key (in the top menu click on settings and prod version ,then you can assign the prod version which
you need to pick during the MRP run),the system always picksup the first production version during
MRP run even if all the prod versions contains the same validity dates and lot sizes.
3.If you are not willing to assign the prod version in MD61 ,but the system should consider the second
prod version for MRP run means,then set the locked status for the first prod.version.
4.When run MRP via MD02 or MD50 in the simulation mode.(i.e w/o giving tick in simulation mode).
Click on Save,You will get a pop screen,
Now click on the continue icon, Then go to Plaining Results: Individual lines screen.where you will get Plan order on which when double click you will get pop screen below,where you have Planned order no,quantity,plant,storage location,and version.
Now here you can select the required version,and it will become firmed. This BOM will be used in the order now. Try it.

Exception message"no BOM selected"

Hi Experts,
In what circumstances is the above error message i.e. "no BOM selected" thrown ? When I am running MD02 for a FG, I am getting this message. This FG has only one SFG as it's component in the BOM. Production version for FG exists. The SFG has no BOM/production version. How can i avoid this message and what all does it imply? Please suggest.
Regards
Sm.

The possible reasons for " No BOM Selected " Exception M,essage 52 could be
1. Validity period of BOM
2. BOM Status (should be active for MRP.)
3. BOM Components should be relevant to production.
4. Check whether you have defined the selection ID for the priority of BOM Usage in SPRO define order of priority of
BOM Usage.
Thanks,
nandha

Component selection in MRP

Dear all,
We have material BOM & order BOM for same material. But at the time of MRP run order BOM should be selected even setting is also made in OPPQ but components are not getting planned in MRP.
Please suggest the solution.
Regards,
SAP CONS

Dear,
1. Check the material having valid date BOM, ie BOM should be available on planned order basic start.
2. Check the BOM usage
3. check the BOM status ( Active or inactive)
4. Check material assigned with any prod version.
5. In MRP4 view check the BOM selection method. Lot size means check the lot size in BOM header.
And MRP type should PD please check and come back.
Regards,
R.Brahmankar

MD04 message 52: No BOM selected

In MD04 I get this
52: No BOM selected (S2)
Message no. MD408
What could be the problem?
This is a E 50 material. I checked the BOM structure and validity. No problem with those.

Hi All,
Checked following before I posted this question and there are no problems with them:
BOM usage: 1
BOM status: 1
Valid from: September 2011
Lot Size for BOM and routing: 1
No deletion flags are turned on for BOM, material and components
BOM item Production relevant: yes
BOM materials are of same plant
Rerun MRP: yes... does not help. quantity of VSEB and plan orders can change but the message 52 still remains and does not explode.
This is only happening in my QAS system... production system with same material and information is ok.

Produciton version selection in MRP

Dear all,
we have prepared alt bom scenario for MTS with two prod versions.
I am facing one problem of production version selection while MRP.
In MTS scenario, system is picking the prod version no. 1 by default while creating order.
1. How we can configure/change the selection of Prod version while MRP?
2. I need to select the prod version on my choice in MTS / MRP(depends on materail availability)?
Thanks,
Jeevan

Hi,
Production Version in Material Master in tab page "MRP 04". If BOM or Routing changes then PV also change. In Selection method two options are available related to PV- Selection by order quant. 1 Selection by explosion date 2 Selection by production version 3 Selection only by production version 1)With Selection by order quantity, the system chooses the alternative BOM into whose lot size range the order quantity falls. The lot size range and area of validity of the BOM apply. 2)With Selection by explosion date, the system chooses the alternative BOM into whose area of validity the date falls according to the setting BOM via dates. 3)With Selection by production version, the system chooses the alternative BOM defined in the valid production version. The lot size range and area of validity of the production version apply. 4) With Selection only by production version, the system chooses the alternative BOM defined in the valid production version. The lot size range and area of validity of the production version apply.
1. How we can configure/change the selection of Prod version while MRP?
=>OPL8 ->Production Version->1 Manual selection of production version
In MD61 - You can set in User Parameter-Requirements type - LSF Make-to-stock production
2. I need to select the prod version on my choice in MTS / MRP(depends on material availability)?
=>In MD61 - You can set in User Parameter-Requirements type - LSF Make-to-stock production
After this u can change PV while converting Plan order to production order.
With Regards,
Ashish

Bom explosion in MRP

Hi
I have following scenario -
I have Regular Sales order bom For one material X in Plant A and as long as engineering is not completed, this Sales order bom is having status inactive. Once engineering is completed then it will become active.
For Same material X in Plant A material BOM also exist ( It is used for stock transport order) and I dont want MRP should select material BOM if it doesnot find Active Sales order BOM.
How to achieve this.

Hi
Try these steps
1) Create BOM Selection ID in SPRO
Sel ID(say for ex 09) Sel pr (1) Usage (5)
2) Assign the ID in OPPQ under BOM/Routing selection Tab
During MRP system will chk for the Usage Priority and if it found any active sales BOM then only it explodes or other wise it don't consider any other BOM
Regards
Brahmaji

BOM Explosion IN MRP RUN

When I run MRP BOM Explosion doesnot take place for certain F parts.This is REM scenario.Planning strategy is 40.I have already checked Planning file entries.
It is OK.Please guide.

Hi,
Pl. check in T.code oppq (plant parameters), if you have mentioned the BOM explosion ID. or in T.code oppq (mrp group).
Also check in the material master, mrp 4 view,
the bom selection id.
whether it is based on lot size or based on production version.
You can cross check using t.code<b> cs11 or cs12</b> (bom explosion).
Rgds,
SD

Production version selection in MRP run

Hi all
here my requirment is to select the Alternative BOM in MRP run.
i have three alternative BOMs. and two routings. to make different combinations i was created Production version. so now my requirment was while run MRP how to choose production version manually. i was mantained MRP 4 screen for selection method as 3.
my All BOM validity dates r same and same lot size.
can any one suggest me how to choose production version manually in MRP run. otherwise system by default it choosing 1st alternative.
Regards
Deviprasad

Hi All,
Thanks for all your suggestions. here my requirment was not matching with these.
my req was
1. want to select prod version while run MRP.
2. my demand was MTS.
3. i already marked in MRP 4 Screen as selection method as 3.
Constrains
my BOM validity dates r same.
lot sizes r same.
i am giving hints for this.
In Customization - BOM selection ID, Selection priority and BOM usage, Alternative selection of BOM in MRP.
i was tried to mantain this. still system picks the default as first production version.
can u try for this. how we can configure in SAP.
example.
i have one material as M-20. it has differnt grads of mixing as R1,R2,R3 alternative BOMs. all alternatives have same materials with differnt Compositions. i want to choose one alternative while run MRP. But system by default picking first alternative BOM.
regards
Deviprasad

Bom selection in mrp

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