Weekly lot size configure

How can i configure the weekly lot size which should plan the matrilal in the week days not at the start of the week .
as per my knowledge if it is weekly then As standard the system tries to schedule the receipts for the first requirements date in a period for the weekly lot size (WB).
for WB (weekly lot size ) it will not accept the other lot size in the customization.
Plz let me know
Regards
piyush

Hello sir ,
Thanks for the reply ,
The requirement is a new lot size like WB, but the End of planning time fence (10days ) should not be rounded to the start of next week.
actually our client wants to use the Planning time fence 10 days & total replinishment time 10 days for the material & that should consider in the planning the material & in the MD04 screen also it should look with the same date .
i have mentain the planning time fencce 10 & total replinishment type 10 days but when i see the md04 it is showing the differant dates to me
example from todays date for
todays date 31.04.2009 (5 day working as per the factory calendar)
19.04.10 -- end of time fence
If i want "End of planning time fence" date is same like "End replenishment lead time.
14.04.10 -- end of replinishment time
14.04.10 -- end of time fence
how i will achive this .
I have used the material with firming type but i am not able to see the the replinishment time in the MDo4 as mrp element as a .
please provide me a details .
Thanks in advance
regards
piyush
Edited by: PiyushY on Mar 31, 2010 4:25 PM

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Weekly lot size calculation with scheduling lines

Hi,
We are using WB = weekly lot size calcultaion for purcahsed material.
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If we have three different requirements coming from different end products for same week, but different date and then we run the MRP, SAP will create three different schedule lines for the same date. Is it possible to configure system so, that it will create one schedule line in that case?
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Hi,
We are using rounding profile and minimun lot size from the Quota arrangement. Roundings seems to work fine.
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Dear All,
I have selected lot size "WB - Weekly Lot Size" for a material.
The Planned week start day is Monday in planned calender.
If i run MRP for the above maintained material it is not flowing the requirment and it is not combined on Monday, it is throing on Tuesday, Thursday and all the other day including MOnday also.
Why is this system is not throwing correctky the requirment on every MOnday.
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Nagaraj S

Please read SAP online help:
http://help.sap.com/erp2005_ehp_04/helpdata/EN/f4/7d282c44af11d182b40000e829fbfe/frameset.htm
Please check your settings in SPRO:
SPRO > Production > MRP > Planning > Lot-Size Calculation > Check Lot-Sizing Procedure
...here you can check "Scheduling" field (V439A-TERBV) of lot size "WB". And you can check also field V439A-LGTER.
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Scheduling for period lot sizes in short-term area
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.
The following procedures exist:
Availability date equal to requirement date
Availability date at period start
Availability date at period end
Start date at period start
Planned order start date at period start and availability date at period end
With this setting, the in-house processing time in the material master record is ignored.
Note
The following is valid in all cases:
If the start date lies in the past, the system switches to forward scheduling. The following example illustrates how the system procedes:
The period start is Monday and the period end is Friday. The planned delivery time is 8 days. The indicator for determining the date is set to, "availability date at period end".
Today is Monday, a requirement is planned on Wednesday. The system has to schedule forwards. As the system works using date determination, today's date is not selected as the start date. Instead, the system determines the next period end, and uses backward scheduling to calculate a start date that does not lie in the past. This means that the end date was planned for the Friday of next Week.
Edited by: Csaba Szommer on Aug 5, 2010 9:32 AM
Edited by: Csaba Szommer on Aug 5, 2010 9:35 AM

Weekly lot size

Hi,
Want to plan material based on weekly lot size. However, am working in a region where week begins on saturday and ends on thursday with friday off.
Have tried maintaining a planning calendar for the same and used lot size PK.Also, have maintained the factory calendar accordingly but, the system does not give desired result.
Am I missing something?
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1. In Factory calener in spro, use No. first workday as 5 (i.e Saturday)
2. Have you updated the new factory calender in the Plant.
3. In Planning calender , Period begin on following weekday = 6- Saturday
4. have you updated Planning calender correctly in material master
pleae check

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In one scenario , it is required that planned prders will be created where the req for 5- 8 days is clubed together and order date is not created on some specific day .
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ShankarR

Hi,
Connect the planning calendar to your lot size key
First, you will need to set up the planning calendar.
Menu path: Production -> MRP -> Master Data -> Planning Calendar (MD25)
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The parents material lot size is fixed lot size , child component lot size is 2 week lot size. ( ie. 2 week = 10 Days ).
question:
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Hi,
Thanks for your answer. if we change the lot size for dependent material to weekly , biweekly or fixed etc....
The dependent req. will generate according to the lot size that is absolutely correct. but planned order or purchase req. will create according to the parent demand (ie .Adding of dependant req. what ever falling with in the lot size period and for that quantity planned order or purchase req. is getting created )
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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.
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Rgds

Hi Vicky,
Requirement date = delivery date
Planning or procurement proposal will create on req date
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ie, if you use period lot size WB,MB.
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Period End = Delivery date
ie, if you use period lot size WB,MB.
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Dharma
Regards,
Dharma

MRP net requirement calcualtion for Lot sizes

Hi all ,
Can some one help me on this ..
I want to set up the MRP for the Raw materials Procurement .
for this i want use MRP type as PD and lot size as WB Weekly lot size .
but as per the requirement the MRP is run daily , i need clarification on certain things such as how does the system calculates the weekly lot size ? say if the requirement is converted into PR on the first day of the MRP run ,followed by that if the requirement varies does the system creates a new PR or it changes the Qty in the existing PR if its was not converted to PO .
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Hi Chris
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Takt time
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Use
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Hi Datta,
Thank you for your help.
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Dear all
I have scenario as follows:
1. My supplier's standard packing size of a raw material is 1000 EA.
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Hi
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Regards
JH

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

Costong Lot Size (Variant Costing/Configuration)

We are trying to identify where to establisth multiple costing lot sizes "in general" --- and in relation to use of "Variant Configuration" in regards to Costing Variants for Varient Configurator.

Material Master -Costing 1 screen is where the Costing lot size is defined.
This can be segmented by plant.
Generally (for your standard peice part materials) you want to keep it at "1". There are some documents where SAP uses "10" or "100" this is for some rounding /calculation reasons. But this can cause other issues, and I just find it confusing to be anything other then "1" (although i have only dealt with standard, "tangible" mfg materials)
The only Costing Variant reasons I can think of are for priority of what "cost" to use (i.e. look for last purchased price, then MM standard cost, then previous, etc) I assume you are talking about running a Sales Order Cost estimate on a Configurable Material ?
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Hi ,
I consider the following system setup for a Mill Products planning implementation .
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I have the Below requirement from the client. Can you please throw some light on this.
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Create an adequate profile for distributing the quantity in the remaining days.
regards,
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Weekly lot size configure

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