Quota Arrangement in MRP Planning

Dear All,
I am facing problem in foll Scenario:
I am trying to use Quota arrangement in MRP Planning.
I have maintained foll values:
Quota Usage in Material Master.
Quota for the material against 3 vendors in Percentages.
I have not maintained any Lot size procedures cause we are not using any batch management or Lot sizing in our company.
MRP Type is reorder type planning.
PIR is maintained for all the 3 vendors against the material being used.
No source List is maintained.
But during MRP Run only 1 PR is getting generated against a single Vendor - which is appearing 1st in the Quota arrangement.
Kindly please suggest me why is this happening... and whether there is some note of configuration missing.
Regards,
Jyotsna Loomba

Hi,
It is easier to use an example.
Lets say we have two vendors that we want equally used and they have been set up in a quota arrangement for a long time. The quota base qty will show how many have been ordered from each. So lets say that at the moment we have the two vendors both set up with a quota of 1 (to keep them equal) and the quota base qty is the same for each (lets say 10,000).
We now want to add a third vendor and they too should get an equal share of the orders. If we just add them the system will see that vendors A and B have each had orders for 10,000 and the new vendor has had 0 and so the system will give every order to the new vendor until they too have a total of 10,000.
By manually entering 10,000 to the quota base qty of the new vendor we are tricking the system into thinking that the new vendor has had the same number of orders as the existing vendors and so from now onwards they WILL all get an equal share.
I hope this helps with the clarification of the use of quota base qty?
As for the data you have just provided, the system would give the next few orders to Vendor V2.
the reason is that the other two vendors get a quota rate of 1 each and V2 has a quota rate of 8 and so V2 should get 8 times the qty of V1 and V3. The quota base qty of 80 against V2 and 20 against each of V1 and V3 means that V2 will get the next orders until their qty reaches 160 (at the proportion of 1, 8, 1).
So if V1 is getting all of the orders at the moment then there is something wrong with the set up of the quota arrangement. This could only really happen if you have set some maximumquantities or lot sizes etc. If you have not done this then I would check that V2 and V3 have valid info records etc.
Steve B

Similar Messages

  • QUOTA ARRANGEMENT IN MRP

    Hi,
    We have three vendors a,b and c with the quota arraangment 5,3 and 2 resp.In MRP lot size is fixed for 1000 qty, reorder point is 150 , Now stock availiblity is 50 in mrp PR is generated for 950 qty. How the system distributed the requirment to these vendors? What are the config steps to be taken in this scinorios. pl guide me in detail.
    will reward points accordingly,
    Regards

    Hi,
    Pl. follow following steps -
    1) Maintain quota of each vendor in transaction MEQ1 with a validity period. e.g. For first vendor 50%. For Second Vendor 30%. Third Vendor 20%. You can also maintain minimum quantity splitting, so that the quantity calculated by MRP which is below this will not be split. For example, if you require 10 PC of material & min. qty aplitting is 50, then the qty 10 will go to first vendor. If qty more than 50 is detected, then only it will be splitt among the vendors as per quota.
    2) For splitting the quantity as per quota, you have to select proper lot size (For example FS - Fixing & Splitting) & maintain tick at 'Split Quota' for the lot size in your system customization for the lot size. You can access the customization in following way -
    SPRO --> Production --> Material Requirement Planning --> Planning --> Lot size Calculation --> Check Lot sizing procedure --> MRP Lot Size
    Select your required lot size & select icon 'Details'. Then mark tick at 'Splitting Quota'. Save the changes. Then run the MRP. System will now split the quantity based on your quota arrangement.
    G.Ganesh Kumar

  • Quota arrangement in R/3 for APO generated planned order materials?

    Quota arrangement for the planned order materials generated from APO and when
    it is at the inbound side of R/3 while in CIF i.e.
    u2022 Once the Planned order is created in APO and when it is at the inbound side of R/3 while in CIF u2013 the system will first check in the table(EQUK) against the material and plant whether there is any valid u201CQuota arrangement numberu201D(EQUK-QUNUM) .
    u2022 Then from the table (EQUIP) against the u201CQuota arrangement numberu201D the system needs to calculate the percentage quota(from QUOTE field) of the material concerned against each production version.
    u2022 Finally the Planned order of the material needs to be converted into more than one Planned orders as per the production versions and in the ratio as mentioned in the quota arrangement.
    Actually Functionality exists today in R/3 whereby MRP will generate more than 1 planned order if production version quota arrangements exist. For example if via MEQ1 a quota arrangement exists to split requirements 60-40 between production version 1 and production version 2 then MRP will generate 2 planned orders using the 60-40 split.
    Does this still occur if APO generates the order materials and CIFs it to R/3?
    *I mean I had a requirement where APO generated planned orders to be split automatically and the correct PVs(Production version EQUP-VERID) to be assigned if quotas(EQUP-QUOTE) exist in R/3 side??*
    please help me asap this will b really appreciated and high points will be given....

    Quota arrangement for the planned order materials generated from APO and when
    it is at the inbound side of R/3 while in CIF i.e.
    u2022 Once the Planned order is created in APO and when it is at the inbound side of R/3 while in CIF u2013 the system will first check in the table(EQUK) against the material and plant whether there is any valid u201CQuota arrangement numberu201D(EQUK-QUNUM) .
    u2022 Then from the table (EQUIP) against the u201CQuota arrangement numberu201D the system needs to calculate the percentage quota(from QUOTE field) of the material concerned against each production version.
    u2022 Finally the Planned order of the material needs to be converted into more than one Planned orders as per the production versions and in the ratio as mentioned in the quota arrangement.
    Actually Functionality exists today in R/3 whereby MRP will generate more than 1 planned order if production version quota arrangements exist. For example if via MEQ1 a quota arrangement exists to split requirements 60-40 between production version 1 and production version 2 then MRP will generate 2 planned orders using the 60-40 split.
    Does this still occur if APO generates the order materials and CIFs it to R/3?
    *I mean I had a requirement where APO generated planned orders to be split automatically and the correct PVs(Production version EQUP-VERID) to be assigned if quotas(EQUP-QUOTE) exist in R/3 side??*
    please help me asap this will b really appreciated and high points will be given....

  • MRP Rescheduling Error with quota arrangement

    Hi i have a problem when using a Quota arrangement in MRP. When i use NME59N to order,the system proposes to bring the first vendor 100% for a month and then the next supplier for a minimal share the following month. the quota is available clearly in PR'S but when converted to PO'S the rescheduling takes the first po as a referrece instead the assigned PR'S.Can any one help me sorting out this?

    When you run ME59N you will convert the requisitions inot POs (the same requisitions that you see in MD04). The vendor assignment is not modified by ME59N. This is already done by the Quota when the MRP runs.
    In ME59N you can control if each requisition will be converted into a single PO, if multiple requisitions are going to be joined and converted into a single PO, etc.
    I am still not sure if your problem is with ME59N or what you don't like is how the vendor is assigned (considering the Quota) when the MRP is executed? If you see in MD04, is the assignment correct? if the vendor assignment that you see in MD04 is not what you want.. then we should find a solution working with the Quota and with the MRP paramenters. Is your problem the vendor assignment that you see in MD04?
    Thansk and Regards,
    Mariano Cabalen

  • Quota Arrangement in Make to order Environment

    Dear Gurus,
    Is it possible to have Quota Arrangement for the planned order that is created for a Sales order? (Planned Order type KD). I have maintained Quota arrangement for my finished Product which is make to order but after I run MRP for a sales order, the planned order is created only for one source of supply (Production Version) instead of splitting it in different production versions.
    Additional data:
    I have allowed Splitting quota on my lot size.
    Please help.
    Regards,
    Jawad Khan Niazi

    Okay, I have figured out the logic. For a single sales order item, the system never splits the planned order quantity into two production versions while creating planned orders, however, if you maintain quota using the maximum released quantity logic the system assigns the alternate source of supply to the next sales order in the same period. for example
    if I maintain quota arrangement for material X as
    Production Version A: 10000 Units
    Production Version B: 10000 Units
    and then I receive two sales orders,
    Sales order 1 : 12000 Units
    Sales order 2 : 8000 Units
    then after executing the planning run the planned orders are created as follows,
    planned order 1 with production version A: 12000 Units (Exception message 70: Quota limit exceeded)
    Planned order 2 with production version B: 8000 Units
    Regards,
    Jawad Khan Niazi

  • 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

  • Subcon Quota Arrangement behavior during MRP

    Dear Gurus,
    Currently, we have a scenario wherein during subcon process there can be 3 Vendors active. During MRP, we would like to have an output as per below:
    Requirement: 1500
    Vendor A: capacity 500 - priority 1
    Vendor B: capacity 700 - priority 2
    Vencor C: capacity 500 - priority 3
    If I run MRP, I would like system to have PR's Vendor A with 500 then as the Vendors capacity is only 500 the remaining requirement should be passed on the succeding vendors. So from my example, Vendor B should have 700 and Vendor C should have 300.
    Is this possible using Quota Arrangement. I was trying to test but I cannot get my desired result.
    Please note that the settings in the material master is already set to Quota usage 4 and the lotsize is weekly with splitting quota activated.
    Thanks,
    Raymond
    Edited by: Raymond on Oct 10, 2011 11:17 AM

    Hi,
    Yes I have maintained below in MEQ1 just for testing but I cannot get the desired result:
                      Quota Percentage        Maximum Lot size      Priority
    Vendor A:   100                                 500                           1
    Vendor B:    100                                 700                          2
    Vendor C:                                           500                          3
    Set-up Weekly lotsize with splitting quota and quota usage 4.
    But during MRP execution, I think the system splits the requirement quantity into 2 and distribute to Vendor A and Vendor B then if it reached maximum lotsize it proposed to vendor C.
    our requirement is first to consider Vendor A then Vendor B then Vendor C according to maximum lot size and priority.
    Any idea if this is possible?
    Thanks,
    Raymond

  • MRP - Quota arrangement

    Dear Sir,
    When I run MRP, System picks first BOM and Routing. here I need that system should pick some quantity say 60% from BOM Alt 1 and 40% BOM alt 2. Can i do this with quoata arrangement functionality. I am working with Repetitive manufacturing.
    Kindly help
    Regards
    Majid

    Hi
    Create 2 PV with two diferent BOM and group counters  of  rate routing.
    Create a Quota arrangement as below
    Qouta no 1
    Procurement Type E
    Special Procurement Type = E
    PPl = Plant
    PV=1
    Quota = 40
    Qouta no 2
    Procurement Type E
    Special Procurement Type = E
    PPl = Plant
    PV=2
    Quota = 60.
    actvate quota arr usage in MRP4  as 4
    Check and revert
    Regards
    Anupam Sharma
    Edited by: anupam sharma on Nov 16, 2009 2:58 PM

  • The MRP generates PldOrd / STPO without considering Quota arrangement

    Dear Expert,
    The MRP generates PldOrd / STPO without considering Quota arrangement/ supplier quantity agreement with Individual indicator =1 maintained in MRP4. It need that it should consider Quota arrangement with Individual indicator =1 while generating PldOrd/ STOP.
    Please help.
    Thanks,
    Om

    Hi Om,
    I hope that you have alreayd maintained the required master data for Quota Arrangement.
    Also have you maintained configuration of Lot-Sizing Procedure ? You need to select "Splitting Quota" indicator in a particular Lot-Size Procedure, which you're going to assign in material master.
    Hope it will help.
    Revert if any issue further.
    Regards,
    Anup

  • If 100% quota arrangement - no PR getting generate through MRP

    Dear All :
    I have maintained
    lot size ES , quota arrangement = 3 , source list tick in mm master.
    Also maintained source list , quota arrangement.
    Where ever more than one vendor , system generating PR but for those quota arrangement maintained 100% for single vendor , there system not generating PR.
    I know source list is enough for same but i want to give 100 business for some items vendors.
    Please resolve my query at early as possible.
    Vijay

    Hi
    In T.code OMI4, which is to define a lot size, you see a small check box for split quota. It will be there for short term planning and long term plannng. You need to tick both or atleast one for your lotsize which you use in material master
    Then only it will work.
    Regards
    Antony

  • Regarding Quota Arrangment

    Dear Gurus,
    I have to activate quota arrangement in our organization. I have done the following steps to active the quota arrangement, 1)Activated the Quota arrange usage in material master.
    2).Activated the Source list in material master. 3)Created the product requirement
    4).Maintained the quota arrangement for Vendor X and Vendor Y 50 percent accordingly
    5).Material requirement planning - MRP run for particular product
    As per the quota arrangement in this stage PR should create for Vndr X and Vndr Y. But it is not happing.
    Your answer will be highly appreciated.
    Reg/ Shankar G.

    Dear All,
    Thanks for your valuable replies; I have done the quota arrangement successfully.
    The following functions are done to achieve the goal.
    u2022     I have created the info record for both vendors.
    u2022     Activated the Quota arrange (3) usage in Material Master (Purchasing)
    u2022     Activated the source list-purchasing
    u2022     Maintained the quota arrangement thru MEQ1 for particular material
    u2022     I have assigned 50% for 2 vendors
    u2022     We have to maintain Lot size data as a u201CFSu201D, fixed lot size field enter sum Value and also enter the rounding
                         value.   Eg- if you enter the fixed lot size 5000, you can enter the rounding value 2500. Then 2 PRu2019s will as per our
                          quota arrangement.
    u2022     Material requirement planning(MRP) run for the product thru MD02
    Reg/ Shankar G.

  • Quota Arrangement in LTP

    Hi Gurus
    In LTP Business Process my requirement is like this
    1) One Fert Material Contains one ROH in BOM of Qt1
    2) The ROH contains 2 vendors
    3) I want to give the quta of ROH in 40% and 60%
    SO in LTP i need 2 planned orders for ROH even if i my requirment for Fert is single
    Pl explain me the settings required for the same
    K.Prabakaran

    Hi,
    In MEQ1 , pls check the foll.
    1. Min Qty splitting - the minimum quantity that a lot must have in order to be apportioned among several sources of supply in the planning run.
    Check whether order qty is more than this min qty.
    2. Also check the valid from and to dates.
    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.
    Regards,
    Sheik
    The indicator for the splitting quota must be set for the the lot-sizing procedure used for materials planning purposes in Customizing.

  • Source determination,Quota Arrangement Process

    Hi,
    Plz tell me how to maintain Source determination,Quota Arrangement.step by step

    Dear,
    QUOTA ARRANGEMENTS
    If a quota arrangement exists for a material, it has the highest priority during source determination. Like source list, the quota arrangement facilitates the administration of sources of supply at plant level.
    If you procure a material from different suppliers, you can assign a quota to each individual supplier. A quota arrangement applies to a certain period and specifies how the receipts should be distributed among each source of supply.
    If a quota arrangement exists, this does not mean that the quantity of a single manually created purchase requisition is automatically apportioned among different sources. In such case, the entire quantity of the requisition is assigned to one source u2013 the source that is next in line receive the relevant order.
    Before you can maintain a quota arrangement item with the procurement type external procurement, a source of supply (info record and / or outline agreement) must exists.
    Create quota arrangement:
    LOGISTICS u2013MATERIAL MANAGEMENT u2013 PURCHASING u2013 MASTER DATA u2013 QUOTA ARRANGEMNET u2013 MAINTAIN.
    Specify number ranges for quota arrangement:
    SAP IMG u2013 MATERIAL MANAGEMENT u2013 PURCHASING u2013 QUOTA ARRANGEMENT u2013 DEFINE NUMBER RANGES.
    You must specify the business application for which quotation arrangement will be used, for example: in material planning or in purchase requisitions. You make this specification in QUOTA ARRANGEMENT USAGE filed, which is to be found in the plant-specific purchasing/materials planning data of the material master record.
    Set quota arrangement usage indicator:
    SAP IMG u2013 MATERIALS MANAGEMENT u2013 PURCHASING u2013 QUOTA ARRANGEMENT u2013 DEFINE QUOTA ARRANGEMENT USAGE.
    System assign quota rating to each source by calculation as u2013 Quota rating = (quota allocated quantity + quota base quantity / quota).
    ADDITIONAL ASPECTS OF SUPPLY SOURCE DETERMINATION
    Quota arrangements also can be source of supply.
    Quota arrangements for material requirements arising over a certain period divided up among different sources on basis of quota. Quota arrangements determine which source of supply is automatically assigned to a purchase requisition.
    SOURCE DETERMINATION
    The purpose of the source determination process is to automatically assign a source of supply to a purchase requisition, if source determination indicator set in the requisition header, the system searches for possible sources of supply for all the items of the requisition. Quota arrangements also can be source of supply.
    In source list specify a preferred source as fixed for a certain period, the system suggest just only this source, even if other potential sources exists.
    Quota arrangements for material requirements arising over a certain period divided up among different sources on basis of quota. Quota arrangements determine which source of supply is automatically assigned to a purchase requisition.
    Source list record consists of the following:
    1.Validity period u2013 Period of validity
    2.Key source data u2013 Number of vendor and responsible purchasing organization or number and item of outline agreement.
    3.Fixed source u2013 Within a validity period not more than one source should be flagged as fixed.
    4.Procurement plant u2013 if the materials can be procured from a plant or another point within your firm, enter the plant number in PPl field and leave the field for the vendor number empty.
    5.Blocked source u2013 To block a source. If you set Blocked indicator and enter only one validity period, the material is excluded from external procurement; that is, it cannot be ordered during this period.
    6.Material requirements planning  - You use MRP indicator to determine whether an automatic source determination process is carried out during the requirements planning run. The appropriate source is then automatically assigned to a purchase requisition, or scheduling agreement delivery schedule lines can be generated directly via planning run.
    If an attempt is made to order a material subject to a source list requirement from a source that is not included in the source list, the standard system issues an error message with the text: Source not included in list despite source list requirement. You can change this to warning message.
    If source list requirement defined for a plant, all materials in the plant level must be maintained with source list before procurement.
    Analyze source list:
    LOGISTICS u2013 MATERIAL MANAGEMNET u2013 PURCHASING u2013 MASTER DATA u2013 SOURCE LIST u2013 FOLLOW ON FUNCTIONS u2013 ANALYSE.
    Define source list requirement at plant level:
    SAP IMG u2013 MM u2013 PURCHSING u2013 SOURCE LIST u2013 DEFINE SOURCE LIST AT PLANT LEVEL.
    Source lists can be created:
    -Manually.
    -Create from within an outline agreement u2013 on outline agreement overview screen, select an item for which you wish to enter source list record and choose ITEM u2013 MAINTAIN SOURCE LIST.
    -Creation from with an info record u2013 you can enter vendor in the source list when creating or changing a purchasing info record. Choose EXTRAS u2013 SOURCE LIST. If the info record valid for entire purchase organization, you can create the source list for all plants of the organization in question. Choose the plant via GOTO u2013 PLANT.
    -Automatic u2013 can generate by system automatically.
    Create source list manually:
    LOGISTICS u2013 MATERIAL MANAGEMENT u2013 PURCHASING u2013 MASTER DATA u2013 SOURCE LIST u2013 MAINTAIN/DISPLAY.
    Generate source list automatically:
    LOGISTICS u2013 MATERIAL MANAGEMENT u2013 PURCHASING u2013 MASTER DATA u2013 SOURCE LIST u2013 FOLOW ON FUNCTIONS u2013 GENERATE.
    Regards,
    Syed Hussain

  • Quota Arrangement || Allocated Quantity

    Hi All,
    I am currently dealing with two issues related to Quota Arrangement which are as follows:
    I have a product in APO on which inbound quota arrangement is set. The product is procured from a vendor and purchase requisitions are created on it. The validity of the quota is from 01.01.2000 to 31.12.2014. Now as per the business requirement we need to extend the validity till 31.12.2015. In APO we can't extend the validity of the quota. The other option is to delete this quota and create the new quota arrangement  of desired validity. But the challenge is 32,654 quantity is already allocated to it( in Allocated quantity field, which is as per my understanding the sum quantity of purchase requisitions and purchase orders). If I delete the quota what will be the affects of it ???. How should I proceed with this issue ???
    I have integrated a new product in APO and I am trying to arrange a quota for the same. I created it successfully. There are purchase requisitions and purchase orders created on it. However, I can see 0 in the allocated quantity field. Can anyone help me in understanding the reason behind 0 Allocated Quantity ???
    Thanks,
    Swapnil

    Dear Sethuraman,
    P - Type of procurement (Internal manufacturing, External Procurement).
    S - Special procurement type. For example consignment / sub-contracting.
    Vendor - Number of Vendor Master
    PPI - Your internal plant from which you will be manufacturing the material.
    Ver. - Production version.
    Quota - The quota percentage in which the required quantity is to be splitt.
    Allocated Qty - Total quantity from all purchase requisitions, purchase orders, release orders, and scheduling agreement schedules allocated to a given source of supply. (The quantities of quota-allocated planned orders are also taken into account.)
    Maximum Quantity - Max qty which is to be assigned to this vendor.
    Quota Base quantity - If you get a new vendor in the quota arrangement, the quota base quantity is to be entered here to avoid all requirements being assigned to the new vendor.
    Max & Min Lot Size - The lot size related to this vendor.
    Rounding Profile -
    1X - Mark tick here of the vendor is to be assigned only one lot during a MRP run. (may be due to capacity restriction).
    Maximum Release quantity - Max qty the vendor should be assigned per MRP period.
    No. - Number of periods for which the Max release qty relates.
    P - Period to which this qty relates.
    Pr - Priority determination sequence
    Determining the Quota Base Quantity
    The quota base quantity is used only when you include a new source in an existing quota arrangement.
    Read SAP Help for more details Determining the Source Under a Quota Arrangement - Purchasing (MM-PUR) - SAP Library
    Split Quota issue
    Thanks & Regards,
    Ramagiri

  • MRP planning and Availability check

    Dear Friends ,
    We are updating  Availablity check in the MRP view for all materials in materials master , While running MRP system is considering ATP check as per SPRO settings defined for Availablity check group .
    Weare not conclude what is the relation for MRP run and availablity check , or  any seperate SPRO settings available for MRP on availablity.
    If we not assigned the Availablity check in MRP view what will happen if  during MRP run ?
    thanks & regards
    Suresh Babu.S

    Suresh,
    MRP does not look at what you have configured for Availability check. These two are independent from each other.
    As given in Help,
    In the planning run, the system carries out the following partial processes:
    1. The system checks the planning file entries. Here, the system checks to see whether a material has been changed in some way relevant to MRP and should therefore be included in the planning run (see Checking the Planning File Entries).
    2. The system carries out a net requirements calculation for every material. Here, the system checks to see whether the requirement quantity is covered by available warehouse stock and fixed receipts from Purchasing or production. If the requirement quantity is not covered, the system creates a procurement proposal (see Net Requirements Calculation).
    3. Then the system carries out the lot-sizing calculation. Here, the system takes the lot-sizing procedure and, if necessary, the rounding up or down values into account (see Lot-Sizing Calculation).
    The system carries out scheduling to calculate the start and finish dates of the procurement proposals (see Scheduling).
    4. The system determines the type of procurement proposals. Depending on the settings, the system creates either planned orders, purchase requisitions or schedule lines for a material (see Determining the Procurement Proposal). If you have maintained the necessary specifications for procurement quota arrangements, the system determines the source of supply which it assigns to the procurement proposal (see Quota Arrangements).
    5. The system recognizes critical situations which the planner has to processes manually in the planning results. For this purpose, the system creates exception messages and carries out a rescheduling check (see Creating Exception Messages and Rescheduling Check).
    Availability check is not a planning process, it is basically a CHECK, based on the Scope of check derived for that Particular transaction, system check the availability of a material and it can confirm or propose the possible availability date.
    In short if a material is defined with Check Group "KP", but with MRP type PD, still MRP would creates procurement proposals if the demand is more than the stock+recipets.
    Regards,
    Prasobh

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