Lot size procedure & MRP

Dear All,
What is Lot size procedure and how it will affect during MRP run?
Please provide some example against explanation.

Suppose,
Avaialble Stock= 50
PIR 150 on 25/06
PIR 60 on 27/06
When you run MRP,
                             Avaialble stock
PIR 150 on 25/06       100
Planned ordre 100       0
PIR 60 on 27/06         60
Planned order 60        0
For 1st PIR, The NEt requirement is 50-150=-100, So planned order for 100 is created.
For 2 nd PIR, the ner requirement is 50-150-60+100= -60, planned order for 60 is created.
In toto, net requirement = Stock-total requiremens+ Total receipts
Regards
Ratan
Edited by: Ratan on Jun 24, 2009 11:31 AM

Similar Messages

Default lot size for MRP type

Hi,
Can we set default Lot size for MRP type ?
Regards
Karthik

Dear,
Yes you can do it by creating material master with MRP Pofile.
First you need to create MRP Pofile in MMD1 where you need to define the LOT SIZE and MRP TYPE which you want then make these value as Fix Value.
Then Create material master MM01 with this MRP Profile and check your result.
Regards,
R.Brahmankar

Help on Planning Calender and lot size procedure settings

Hi Gurus,
We have 2 different schedule at the moment for our PO Placing to our supplier :
1. Planning Calendar D01 --> For Seafreight shipment, PO Placing on bi-weekly basis, every Monday and RDD (Request Delivery Date) is on Thursday (11 days after PO Placing)
2. Planning Calendar D02 --> For Airfreight shipment, PO Placing on weekly basis, every Friday and RDD (Request Delivery Date) is on Wednesday (5 days after PO Placing)
Now we have required to change the SEAFREIGHT process by having the PO Placing on weekly basis, every Monday and RDD (Request Delivery Date) is on Wednesday (9 days after PO Placing).
Please let me know the step by step procedure to create a new Planning Calendar and Lot Size Procedure to accomodate this requirement?
Thanks for your help.
Regards
Brijesh

Dear Brijesh:
1. I think you are planning to change the Planning calendare D01.
2. For this go to MD26- GIVE THE plant / palnning calendar id.
3. Then in the CAlc rule for spec peroid - change the day from wednesday to Monday.
4. SAve this and generate periods.
5. Now in the maeterial master- check if you have the lot size as PK and also planning calendar as d01.
6. In the planned dleiveyr times you enter 9 days.
Kindly check this and revert back.
Reg
Dsk

New lot size in MRP view

Hi ALL
Any one can suggest how can we configure a new lot size for MRP view in ECC.
regards
Vikas

Hello Vikas,
I am not too sure ? Can you not change the field ? It doesnot need any cofiguration on the MRP view level. The value needs to be set
Thanks
Amber

Re: Coll. req with WB lot size procedure & minimum lot size

Dear All.
I am having a material assigned to WB lot size procedure with collective requirements indicator & a minimum lot size qty.
Now still the system are creating more than one PR in one period. Please advice.
Regards
Vivek

Hi All,
What is happening in thsi case is that inspite of the desirable setting for getting Collective requirements with WB LSP. The system is creating lot of Purchase requisitions for one day.I want that the system should add up all the PR & prompt only one.
Please Advice.
Regards,
Vivek

Configure lot size for MRP

Hi Experts,
I would like to configure lot size for 3 monthly, can any one explain me the configuration procedures?
Thanks alot
Rgds,

Hi Vivek,
I copied the Z3 form MB, and changed the no of periods into 3. and there're no difference between material assigned with Z3 or MB.
We haven't activated MRP4 view, do I have to activate that view first to make this happen?
for your additional info, I use MRP type (configured) based on ROP.
Pls help.
Thanks

MRP: lot size procedure

Hellow everyone,
I have to configure MRP for some materials. The problem is that we need to create an automatic purchase requisition when the stock level goes beyound a certain safety quantity and the proposal must be a result of the average quantity of the last three months sales plus a 20 percent. Example: the last three months sales average = 5000 kg then the quantity proposal must be 5000*1.2=6000kg. I also don't know if I can configure this in standard SAP or if we need the help of an ABAP consultant.
Thanks!
Edited by: Dean John on May 24, 2010 10:19 AM

hi,
for your requirement there is the concept of range of coverage. this is nothing but the dynamic safety stock.
please follow the link
Coverage Profile Settings - Min field ( Range of coverage)
http://wiki.sdn.sap.com/wiki/display/ERPLO/Dynamicsafetystock+calculation
and there are many in this regards.
regards,
Adwait Bachuwar
Edited by: adwait bachuwar on May 26, 2010 4:50 PM

How to know if a MRP run element is using Quota Arrangement and lot size?

Hi all,
Two questions:
A) How to determine if a source is actually pulled from Quota Arrangement?
I am wondering if there is anyway from ABAP table or from Transaction (i.e. Purchasing Order) in which the source is pulled from a Quota Arrangement?
We use scheduling agreement, PIR and source list, and as well as Quota Arrangement for our purchasing.
I just want to know how, from system (table and transaction), to find out the source is from quota, not from PIR or others.
B) Quota Arrangement still can work properly if lot-size procedure's splitting quota indicator not Checked?
If my the lot-size procedure which I am using for a material does not activate the splitting quota indicator, it means split quota will not work during MRP run.
But does this also mean that quota arrangement will not be working for this particular material even if I have create a a quota arrangement object (via MEQ1) for this material?
Thanks
Daniel

Tomek,
If I want to use the split quota, it seems there is some pre-requisite.
If you go to MEQ1 and press F1's on the "Minimum qty split" column, and you will notice the following message.
Allocation by quota using splitting quotas is only carried out via a requirement planning run, subject to the following preconditions:
Through the appropriate entry in the field Quota arrangement usage (on the MRP data screen 2 or Purchasing screen) it must have been specified that a quota arrangement is to be applied in the planning run.
The indicator for the splitting quota must be set for the the lot-sizing procedure used for materials planning purposes in Customizing.
Hence, the quota arrangmeent still workable even if the lot-size does not have the spliting quota box checked?
Indicator: Splitting quota in short-term horizon
The indicator for splitting is used to determine that in the case of the selected lot size, the quota arrangement is to be applied using the splitting logic.
Use
If this indicator has been set, the lot is split up in the planning run according to the following formula:
quota for source X
Quantity for source X = --------------------- * requirement
sum of all quotas

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

Planned order with Lot size and Planning Calendar in MRP

Hi All
I request your help in understanding MRP results in below mentioned scenario:
Material: A
Planning Calendar: D1 (Monday only)
MRP Type: PD
Lot size: Z1 (this is copy of PK with Period Start = Start Date)
Safety Days Time: 3
Safety time indicator: 2
In house Production time: 1
I am running MRP with
NETCH
Planning mode: 3 (Delete and recreate planning)
scheduling: 2 (lead time scheduling)
"My PIRs are:
"Date--------------------PIR   -----Receipt------Avail Qty------ATP Qty ----Actual Cover
"Friday :08.4.11" ---- "-100"   ------ "0" ----   "-100.00" ------ "0" ----   "-5"
"Monday: 11.4.11" --- "-200" ----- "0" -----    "-300.00" ------ "0" ----- "-2"
"Wed      : 12.4.11" --- "0" ---- "370" ---------- "70.00" --------"20"----- "5"
"Thursday 14.4.11" --- "-50" ------ "0" -------- "20.00" ------- "0" ------"3"
"Saturday 16.4.11" -- "-10" ---------- "0" ------- "0.00" -------- "10" ----- "1"
"Sunday    17.4.112" ---- "-10" ------- "0" ------- "0.00" ---------- "0" ----- "0"
"Tuesday   19.4.11" --- "0" ------- "2000" ------- "2000.00" ------ "2000" --- "6"
"Thursday 21.4.11" -- "-1000" ------ "0" -------"1000.00" ------- "1000" --- "4"
"Monday   25.4.11" --- "-1000" ------- "0" ---------- "0" ----------- "0"------- "0"
"Tuesday 26.4.11"---- "0" -------- "100" -------- "100" -------- "100" ----- "3"
"Friday      29.4.11" --- "-100" ---- "0" ------ "0" -------- "0" -------- "0"
I am executing MRP on 7.04.11
As shown above the, can you please explain why the planned order is on Wed 12th and it covers 5 days requirement and similarly Tuesday 19th and covers 6 days.
I am not able to relate the relation between Planning calendar and Lot size procedure used. Also what would happen if I make planning calendar valid for two days in a week.
Thanks in advance
Rahul

Thanks dear
Yes you are right the Planning Calendar starts 18.4.11 and ends 24.4.11
Now as far as first planned order is concerned I thought it should be scheduled to start&end on Monday 11.04.11, rather it starts&ends on Tuesday 12.4.11. Also the actual coverage days goes up to 5 days even though its maintained for 3 days.
Similarly the second planned order also comes up on Tuesday 19.04.11 and covers 6 days (more than the setting and planning Calendar of only Monday)
On the whole this is confusing me on Lot size and Planning Calendar relation and how it impacts MRP. Can you please help me on this.
Also if you can throw some details on: how to restrict MRP to give planned order only on, say, Monday and Thursday, as only then it could be produced.
Thanks in advance
Rahul

MRP : Calculating lot size without purchase orders

Hello,
    We have some materials with weekly replenisment.
    We want to calculate the quantity by following the formula : Maximun stock - actual stock.
    The lot size procedure HB do something similar but takes into account the existing fixed receipt elements,
    How can I avoid to take that stock into account? any other characteristic? any user exit ? Any badi?
Thank you

Ander,
Check BADI - MD_CHANGE_MRP_DATA, this may be helpful in achieving your requirement.
Regards,
Prasobh

Relation between PO Qty and Minimum Lot size of material master

I have maintained "100" in minimum lot size ( MRP1 View, table MARC and field BSTM) for the material.
I am also succssed to create the Purchase order for 2.5 Qty for the same material. '
I wanted to know, how system is allowig to create the PO with lesser qty or is this view is maintained only for sales?
Please give your expert comments on the same.
Thanks,
Vikas
99301 03991

Used for claculate the procurement qty during MRP and depends on the lot size procedure you select. quota arrangement also uses this lot size.
[http://help.sap.com/saphelp_erp60_sp/helpdata/en/f4/7d26ad44af11d182b40000e829fbfe/content.htm]
Edited by: Karthik on Jul 8, 2011 9:47 PM

Lot size Key without splitting Quota

Hi,
Can any one explain me what is the use of Lot size Key without splitting Quota.
We had created a lot size Key - XY with following seting:-
1) Lotsize Proceed = P
2) Lotsize indicator -K
3) Scheduling =2
4) No of periods = 1
5) Splitting Quota = Not checked(blank)
If we had configured this lot size key, what is the benefits of the above setting, What testing need to be done to know whether this lot size key is working perfectly after configuration?.
Thanks in advance

Hi,
If splitting quota indicator not set, then qouta arrangement is not used during planning wrt to selected lot size.
Lot size procedure you selected, it is a periodic lot sizing procedure. Here the system groups several requirements within a time interval together to form a lot.
Lot size indicator Determines how the lot size is calculated for a certain lot-sizing procedure during material requirements planning. For your selection system creates lot size by refereing to planning calender defined in the system
Scheduling -
This indicator defines the time in the period the system is to create the availability date or the start date for the lot for period
lot-sizing procedures.
The availability date is the date on which the material, including the goods receipt processing time, is available again. In the MRP list, the availability date is equal to the MRP date.
In in-house production, the start date is the order start date, in external procurement the start date is the release date.
according to your selection - Availability date at period end
No of periods - 1
Run a complete MRP cycel to check whether it is working properly or not.
Post the results what you get.
Regards,
Pavan

Rounding Value is not considered for MB lot size

Hi
I have a scenario where MB (Monthly Lot size) lot size is used with rounding value. Example as below:
Lot size: MB
Min Lot size: 15000
Rounding Value: 20000
DEMAND: 16000
When MRP run, System is creating the 16000 as P Req instead of 20000 which is the rounding value.
Pl let me know, if I need to apply OSS note / any other solution for this.
Thanks,
JK
Edited by: Janakiram Katakam on May 17, 2010 4:57 AM

Dear ,
Are you using any Rouding Profile in MRP1 view ?
What is the Setup in OMI4 for MB-Lot Size .Remove the tick mark in Last Lot Exat if it is marked .By specifing the rounding value, the system will determine during lot size calculation that lot size qty is a multiple of of an order unit(eg : pallet size if mtrl is delivered in entire pallets...).
Please check what is the Lot Size Indicator or Lot size procedure assinged to it ?
2.you can use rounding profiles...its used to define the setting of rounding up or rounding down the order proposal qty into deliverable quantities...rounding profile maintenance the t-code is OWD1. Here for static rounding profile
Rounding profiles are defined under:
spro-> purchasing->consumption based planning->planning->lot size calculation ->maintain rounding profiles...
it consist of threshold value and rounding value...
the threshold val is the value from which the system rounds the value of the next deliverable units upto...
the rounding value is from which the systemshd round up to as soon as threshold value is exceeded...
Otherwise , Check FM MD_ROUNDING_VALUE
Regards
JH
Regards
JH

EX lot size for maximum value

Hi Could someone answer this, my minimum lot size is 100 and max is 500, when my PIR qty is 90 it will generate planned order for 100 where as when my PIR is 600, i am expecting the planned order qty for 500 but it always the same with minimum lot size, is there any specific reason? using mrp type PD.

Hi Sprint,
Well you have to go through with the lot size procedures OK. EX means lot for lot order quantity so it does not consider the MINIMUM lot size OK please check once again OK.
If you are order quantity is 600 and maximum lot size is 500 then after running the MRP go to MD04 screen you can see there planned orders will be created so there first it will create Planned order for 500 quantity and then there will be another planned order for 100 please check once OK.
It will consider only maximum lot size OK.
Regards,
Madhu.G

Lot size procedure & MRP

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