MRP lot sizing proced.(OMI4) Std config. u00A0

Hi friendz,
What is the config for MRP lot sizing proced. for following scenarios.
Period lot size according . to plng calendar
Period Lot size;plng calendar;end rec
Period lot size according. to plng cal.for PP
Replenish to maximum stock level
Repl to max stock level w/requirements
Thanks and regards,
Solomon

hi,
suppose i m mantaining the lot size PA, Lot size proc. -P, lot size indi - K, and no of periods - 1,
now the same way if i want to maintain lot size PP - (Period lot size acc. to plng cal.for PP) wt are the other fields in OMI4 i have to maintain.
hope u can understand the above scenario.
Thanks,
Solomon

Similar Messages

MRP Lot-Sizing Procedures PK

Hi experts,
When we use lot-sizing procedures PK, I have a problem about it.
Can you please kindly help me.
The problem is.
When we run MRP and get the release date as past date in purchase requisition.
I would not like system to propose release date as past date.
Do we need more configuration for using lot-sizing procedures PK ?
The settings are mentioned as below.
* material master
- Lot size in MRP1 view : PK
- MRP Type in MRP1 view : PD
- Procurement type in MRP2 view : F
* MRP parameters
- Processing key : NETCH
- Create purchase req. : 1 (Purchase requisitions)
- Delivery schedules : 3 (Schedule lines)
- Create MRP list : 1 (MRP list)
- Planning mode : 1 (Adapt planning data (normal mode))
- Scheduling : 2 (Lead Time Scheduling and Capacity Planning)

please read below for the detail explanation of the release date.
please check the example part of below.
wish it help.
tks.
Purchase Requisition Release Date
Specifies the date on which the purchase order
should be initiated on the basis of the purchase
requisition.
The release date is based on:
The
     purchasing department processing time defined for the plant
The
     planned delivery time from the material
     master record or purchasing
     info record
The
     delivery date
The
     goods receipt processing time from the material master record
Note
The planned delivery time from the
purchasing info record and the GR processing time are only taken into account
if the purchase requisition was generated via materials
planning.
Example
Processing time Planned del. GR processing
Purchasing time time
|----------|---------------------|--------|
Release PO Delivery Date
date date date required
Date required: 01.10.2007
GR processing time: 2 days (working days)
Planned delivery time: 10 days (calendar days)
Purchasing dept processing time: 2 days (working days)
For the material to be available on the
date it is needed, the purchase requisition must be released on 13.09.2007
(requirement date less GR processing time, planned delivery time, and
purchasing department processing time).

MRP Lot Sizing Procedures

Can some provide a list of the SAP supplied lot sizing procedures. The value and description would be fine.
Such as EX - Lot for Lot.
Thanks
Edited by: WILLIAM GETZ on Mar 27, 2008 1:42 PM

Hi,
The lot sizes are maintained in transaction OMI4.
The following are a few standard lot sizes,
ES - Lot-for-lot order quantity w. splitting,
FX - Fixed order quantity
FS - Fixing and splitting
GR - Groff reorder procedure
HB - Replenish to maximum stock level
MB - Monthly lot size
TB - Daily lot size
WB - Weekly lot size
Please inform if you need any specific information about the lot sizes.
Regards,
Senthilkumar

Alternate Lot Sizing for KMAT (configurable) materials

Hi friends,
We are using KMAT(configurable) materials.
During MPS/MRP run, SAP plans KMAT production with Lot-to-Lot production(EX) by default!
We have some capacity planning situations, due to which, we need the lot sizing options like u2018Fixed lot (FX) sizeu2019 or u2018Fixed lot size with splitting(FS)u2019 or even use of u2018Min-Max lot sizeu2019... so that the large requirements are transferred in smaller lots to the plant.
But, when we use any of these lot- sizing procedures in MRP1 screen of the material master, we do not find any difference in MRP resultsu2026 system just triggers the planned order exactly matching the Sales order quantity (as if we still use EX)!
SAP notes 437098 and 724235 hint that the alternate lot sizing procedures are possible to set up for configurable materials... but we are struggling to crack this.
If any of you have had an opportunity to work on alternate or custom lot sizing procedures with KMAT (configurable) materials, it would be wonderful to hear the suggestions and results.
Thanks in advance.
Best Regards,
Senthil

Hi Dario,
Thanks for the response.
We use ECC6.0; I could not find the inidicator you've referred (customer requirement)... in transaction OMI4 : Check Lot Sizing Procedure --> MRP Lot Size...
Kindly advise if you were referring to any other version or any other transaction...
Best Regards,
Senthil

Question on MRP lot size.

Greetings Gurus
I have a question on running MRP and lot size. We would like to run MRP for our horizon period of 4 months.
Basically, we want SAP to create a single purchase requisition for any requirements that falls within this 4 month period,
But any requirements that fall outside of this, we want SAP to exclude (horizon MRP group set to 4 months)
I am having difficulty making this happen.
I think it may have to do with my lot size definition. Icopied lot size MB and changed the no of periods to 4.
But when I run MRP (@MD03, Processing key = NETPL, Create PR= 1, DelScd = 3, everything else = 1),
it creates 2 requisitions, one for theimmediate 4 month horizon period, but then it creates another requisition for the next 4 month period.
When I set my lot size to MB, it creates everything within the single 4 month horizon period as I expect, but it breaks it up into
requisitions by month.
Any advice on how I can accomplish this?
Thanks in advance
Regards
Ken

Hi Ken,
Txn Code OMI4, make a copy of lot size MB to say Z3 & give a description as required, then change the value of No. of periods to 3 & save. Now you can assign this in your Material Master.
you need copy as Z3 from MB and also assigned to material master (view MRP1), and the short term parameters as per below:
- No of period = 4
- Lot size proced = P
- Lot size ind = M
- Scheduling = 1, else <blank>
For further any issues pls share with us.
Regards
Sanjeet Kumar

Offset in planned order with weekly lot sizing.

Hi,
After i run MRP with a weekly lot sizing procedure, avaiability date = start of the period, the MRP groups all planned orders of the week at the first requirements date of that week.
But what i need is to put that group of the planned orders in the last working day of the week before.
For example:
Week
Friday Week n
Week n+1
Ind. Requirements
0
1
1
1
1
1
Planned order
5
Can you please help me how to solve this issue.
Thanks in advance.
Mike

Hi,
It is possible by configuring a version of the standart weekly lot sizing procedure. In customization for lot sizing procedures (tr. OMI4), copy the lot sizing procedure WB and name it. In the detail settings of the procedure set the scheduling field to 1. This makes the delivery date of the procurement proposal the period start (you requirement is the last day of the previous period, however this is the best next option). You may press F1 after clicking on this field and learn about other options. Please assign this new procedure to the material and test it.
Regards.

Weekly Lot-sizing yielding incorrect Planned Order dates

Hi All,
need a help..
Lot-sizing key = W2 (weekly)
"Scheduling" on the config of the lot-sizing key = 3 (Period start := start and period end := delivery date). This data has been maintained for a material that is to be planned/produced on a weekly basis.
Requirement --- Weekly planning on my material. MRP should return Planned Orders with Start Date = Reqt Date (of the Dependent reqt) & End date = Availability date (of the dep reqt).
Currently, the system is calculating the "only" hours on the basis of the Routing data (I'm running Lead Time Scheduling) while creating Planned Orders during the MRP run against my expectation of spanning the production/order out over multiple days (per the lot-sizing config)
Any clue would be of a great help
cheers

Thanks Mario,
Had found that out during the course of my testing. I'm doing a Lead Time Sched, so obviously my reqt can't be met..
So, we can conclude that though a weekly lot-sizing procedure is/could be compatible with LTS, the Config within the lot-size (field Scheduling = 3) cannot be used to influence the dates on the created Planned Orders...
Cheers

Lot sizing key DY and WI

Can somebody explain me for which business process the DY and WI lot size is recommended in MRP>
Also what is significance of eact one if it is used.
Thanks
Vaibhav

Hi Sumeet,
Using 2 lot sizing procedures in a single material master will not be possible.
Also, creating 2 Valuation classes with different lot sizing for each valuated material data wont be acceptable by business.
Here, you can create a customized lot size by copying a standard, and in to the config of the lot size, please define Short Term and Long Term Planning details.
IMG-> MM->Consumption Based Planning->Planning->Lot Size Calculation-> Define Lot Size Procedure->MRP Lot Size.
Maintain Static for Short term and Dynamic lot size option for longer term and define the short term, long term intervals.
Hope this would work.
Thanks
Raghavan

Multiple PR's being created even though the Lot Sizing procedure is WB.

The issue is system is creating more than one PR every week even though the lot sizing procedure is WB. The MRP type of the material is P3 and planning time fence is 21 days. The PR's created have the date of every week's Monday. There's also a quota arrangement for the material having two vendors, so two PR's both having different vendors are ok but system is creating multiple PR's for same vendor on same date.
Do let me know if anything else you want to know to understand this issue.
We want system to create only one PR per week for a vendor.
Thanks,
Rakesh.

Hi,
First thing theres a lot size WB
What is the qty of the PR have u maintianined any min lot sice or max lot size.
Coming to quota arrangement how did u maintained it
For eg
You might have maintained for a vendor 1 maximum qty as 100 and u have raised a request for 200 so it is raising two prs
Check u r quota arrangement once
Reagrds
sravanthi

New lot-sizing procedure (similar FX fixed order quantity)

Dear All,
I have to create a new lot sizing procedure for MRP run. This new procedure should be similar to FX - the material should be included in MRP run when the stock falls below reorder point - but the quantity ordered (proposed to be ordered in PReq) should be the fixed lot size no matter which is the difference between the reorder point and the stock.
To clarify the request: the reorder point is 70, the stock level is 15 and the fixed lot size is 25. The MRP run should create 1 PReq for 25. (The standard functionality of FX lot sizing creates 3 PReq for 25 pieces each one - because the needed quantity is 55.)
If there is no standard customization to be done, I think I should do some changes in the needed quantity (set the quantity 25 instead of 55) - but I need yours advice also about the best way to do this. Maybe you may indicate an exit/BADI or a place where I can do an enhancement to achieve this.
I now it is not the best request - but I have to do it, unfortunately .
Regards,
Florina R.

Hi Tomasz,
1) The reorder point is 70 (greater than the needed quantity for a week) because the vendor has some delivery problems and also because this quantity covers the delivery lead time.
2) The lot size is fixed because they do not want to order more than the needed quantity for a week even if the difference between the reorder point and the stock level is greater than 25.
I'm able to fix the lot size but not to limit the quantity at this value (25).
I have to do this because they will provide the needed quantity (if the stock falls to 0) from another vendor (but the tricky thing and wrong also is the fact that for the second vendor I have a second material....).
It is hard for me to convince you that the request is correct because I know in this way SAP will work incorrectly - but the client knows the consequences and even so wants this kind of lot sizing procedure...
Regards,
Florina R.

MRP Lot Size Difference

Hi All
In OMI4 ie. MRP lot size procedure i see several MRP lot sizes i.e. EX, WB etc....
But only major difference i find is in terms of scheduling i.e.
Blank (Requirement date = delivery date), 1 (period start = delivery date), & so on i.e. 2, 3, 4
Can anyone tell how it works?????? What is its significance
Example would be very good for me
Please suggest
Rgds

Hi Vicky,
Requirement date = delivery date
Planning or procurement proposal will create on req date
Period start = Delivery date
Planning or procurement proposal will create on period start.
ie, if you use period lot size WB,MB.
WB means weekly lot size ie, on Monday cumulated requirement will create for that week. Same for MB, month end planning proposal will create.
Period End = Delivery date
ie, if you use period lot size WB,MB.
On Saturday cumulated requirement will create for that week if you use WB. Same for MB.
This concept will not work if you use planning time fence.
Regards,
Dharma
Regards,
Dharma

Vendor lot sizing

Dear Expert,
I have requirement to use different lot sizing for each vendor.
Background of this requirement because in my company, there are some material that can be procured with more than 1 vendor (use quota arrangement).
For example :
we want to purchase material X.
for material X there is quota arrangement with vendor A (60%) and vendor B (40%).
vendor A will delivered material Weekly.
vendor B will delivered material monthly.
when we have requirements like below :
Date                           Element               Quantity
3 Oct 2011                 Req                         -10
11 Oct 2011               Req                         -20
19 Oct 2011               Req                         -30
27 Oct 2011               Req                         -40
when i want to running MRP, my expectation is below:
Date                           Element               Quantity
3 Oct 2011                 PR Vendor A           6    (total quantity weekly * quota = 10 * 60%)
3 Oct 2011                 PR Vendor B           40 (total quantity monthly * quota = 100 * 40%)
3 Oct 2011                 Req                         -10
10 Oct 2011               PR Vendor A          12    (total quantity weekly * quota = 20 * 60%)
11 Oct 2011               Req                         -20
17 Oct 2011               PR Vendor A          18    (total quantity weekly * quota = 30 * 60%)
19 Oct 2011               Req                         -30
24 Oct 2011               PR Vendor A          24    (total quantity weekly * quota = 40 * 60%)
27 Oct 2011               Req                         -40
Recently, because i only set lot sizing (use monthly) in material master, when i run MRP the result like below:
Date                           Element               Quantity
3 Oct 2011                 PR Vendor A           60 (total quantity monthly * quota = 100 * 60%)
3 Oct 2011                 PR Vendor B           40 (total quantity monthly * quota = 100 * 40%)
3 Oct 2011                 Req                         -10
11 Oct 2011               Req                         -20
19 Oct 2011               Req                         -30
27 Oct 2011               Req                         -40
i have explore this requirement and find solution use planning calendar, but to set planning calendar for each vendor must activate SAP retail and my company not activate it.
is there any solution to achieve my requirement.
Thank you very much for your assistance.
Best Regards,
Subandi Widjaya

Hi,
Can you check whether Time Phased Planning in R3 suits your needs.Here you define Planning cycle along with delivery cycle.
Thanks,
nandha

Lot Sizing for Short/Long Term

Hello All,
I tried the lot sizing with the short term/Longterm pattern..
But I'm facing the following problem..
I have maintained periodic lot sizing according to the planning calendar(Weeks from Saturday to Friday) for the first month...( Requirement date = period end)
And for the other 2 years I have defined periodic lot sizing with Monthly lot size ( Requirement date = period end).
But running MRP, the system Cumulates all the monthly requirement from the 2 nd period and creating the order proposal with the order end date of the months first planning calendar week. But I'm expecting the system to create the order proposal with the month's last date as the order end date .
Whether my expectation is incorrect or any other settings to be maintained to achieve this.
Thanks & regards,
Mahesh

Hello Mahesh,
You can get the results without maintaining the planning calendar..Just change the lot size procedure WB :weekly lot size" and take out the planing calendar and maintain the settings as per below.
In the period lot sizing procedure WB maintain the number of periods 1 for the period of short term period with weekly lot size. then in "end of the short term period" maintain the initail value " months: and define number of periods 24.
maintain the same values for long term period i.e period 1 with period lot sizing procedure (monthly lot size).
By doing the above you will get the weekly lot size for the first 2 years and then monthly lot size for the rest of the requirements.
If helpful rewards your points.
Regards
TAJUDDIN

Optimum Lot Sizing Procedure

No. of POs per year
Purchase Cost
Storage Cost (20 %)
Total Cost
Purchase Value
Purchase Quantity
1
800,000
2,400,000,000
2,400,800,000
120,000,000
1200
2
160,000
13,200,000
14,800,000
60,000,000
600
3
240,000
8,800,000
11,200,000
40,000,000
400
4
3,200,000
6,600,000
9,800,000
30,000,000
300
5
4,000,000
5,280,000
9,280,000
24,000,000
240
6
4,800,000
4,400,000
9,200,000
20,000,000
200
7
5,600,000
3,771,429
9,371,429
17,142,857
171
8
6,400,000
3,300,000
9,700,000
15,000,000
150
Hi All,
I need total requirements of 1200 EA around the year from a specific material, if i issue one PO per year for total quantity of 1200 the total cost will be as shown above, if i issue two POs (one PO every 6 months with total quantity of 600) the total cost will be as shown above, the optimum quantity is 200 and 6 POs (one PO every 2 months with total quantity of 200) as the cost will be at its minimum.
Line no. 6: the optimum quantity that should be suggested by MRP run is 200 EA as the total cost is 9,200,000 (the lowest cost).
I want to use dynamic reorder point (MRP type V2) and dynamic lot size(DY) in MRP1 view i choose MRP type V2, Lot size DY,Reorder Point 300, Safety Stock 100, Ordering Cost 800,000 and Storage Cost ind. 1 ( represent 20%) but when i save the material the system issue the below message:
MRP type V2 requires forecasting data to be maintained so please help me to understand which data i have to maintain to use optimum lot sizing procedure to meet the above requirements.
If you could help me with an example and screenshot i'd be grateful. Thanks in advance.

Hi,
Do refer the below wiki Link it will help you understand more about Lot sizing procedure..
Lot sizing procedure calculation - Adobe Interactive Forms (Japanese) - SCN Wiki

Ordering costs For Optimum Lot sizing Procedure

Hello Gurus,
What does ordering costs mean.I am unable to conclude from SAP Library
how to arrive at these costs.I could understand the logic behind using
these costs and getting the optimum lotsize.Kindly help me in understanding
the ordering costs.
Thanks in advance,
S.nandhakumar
Message was edited by:
S Nanda Kumar

Hello Nanda,
Ordering costs is sum of transport cost and storage cost for a component.
In transport cost you can include all purchasing cost and you have maintained this in MRP view in the field of "ordering costs".
Storage cost you have maninatined in percentage in customizing in lot sizing procedure.
This will be picked up automatically with optimum lot sizing procedure to create a optimum lot size.
Please rewards your points if helpful and let me know anything more you would like to know.
Regards
TAJUDDIN

MRP lot sizing proced.(OMI4) Std config. u00A0

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