HELP: Planning Time Fence Control

Hi,
We have a business requirement where we have Firm Purchase Orders and WIP jobs outside the planning time fence (PTF). We then have new demand for the item coming from SO. When we run MRP, the system is extending the planning time fence up to the Need by date of the latest PO so this means there will be no stock to cover the new demand and we are in backorder!
Example:
Item: ABC
Item Leadtime: 5 days
PTF: 5 days
Sysdate : 09-Feb-2009
Firm Purchase Order: 20-Mar-2009 (outside the PTF for the item)
WIP job demand: 20-Mar-2009
New SO 5000001252 with schedule ship date 17-Feb-2009
To cover the demand for SO 5000001252 MRP is suggesting a new planned order for 20-Mar-2009.
Plan option:
Profile MRP:Firm Planned Order Time Fence = No
Overwrite = None
Append Planned Orders = Yes
Planning Time Fence Control = Yes
Has anybody come across this scenario? How can we force MRP to suggest a Planned Order for the 17-Feb-2009?
Can the above requirement be achieved with ASCP?
thanks

Hi
I guess planning is creating time fence on its own called the natrual time fence. It would take the firm supply and create a timefence based on its date until creating new pl order within that period.
Please set profile MRP:Create Time fence to No and recheck
Best regards
Partha

Similar Messages

  • MRP: Firm Orders and Time Fence Control

    Hi,
    We have a business requirement where we have Firm Purchase Orders and WIP jobs outside the planning time fence (PTF). We then have new demand for the item coming from SO. When we run MRP, the system is extending the planning time fence up to the Need by date of the latest PO so this means there will be no stock to cover the new demand and we are in backorder!
    Example:
    Item: ABC
    Item Leadtime: 5 days
    PTF: 5 days
    Sysdate : 09-Feb-2009
    Firm Purchase Order: 20-Mar-2009 (outside the PTF for the item)
    WIP job demand: 20-Mar-2009
    New SO 5000001252 with schedule ship date 17-Feb-2009
    To cover the demand for SO 5000001252 MRP is suggesting a new planned order for 20-Mar-2009.
    Plan option:
    Profile MRP:Firm Planned Order Time Fence = No
    Overwrite = None
    Append Planned Orders = Yes
    Planning Time Fence Control = Yes
    Has anybody come across this scenario? How can we force MRP to suggest a Planned Order for the 17-Feb-2009?
    thanks

    Many thanks for the quick reply!
    We have MRP:Create Time fence = Yes
    We want time fence except for firm orders. My understanding from reading the documentation is Firm orders are those MRP will not touch. There is no mention of extending the PTF. Basically in our business we are trying to peg a PO to a WIP. Is there another way of achieving this?
    Once again thanks and I will do some tests by setting MRP:Create Time fence = No

  • What is planning time fence

    in material master we enter planning time fence & in house productiton & plnd delivery time
    explain wirh a example

    planning time fence: basically it is the period in which no changes to the plan happens automatically through MRP run
    inhouse production time: the time required to produce a material in calender days
    Pld delivery time: time required to procure a material if it is procured externally.
    the latter 2 values are of significance in scheduling the delivery dates. inhouse production time for the product  and PDT for the components(sourced externally)
    please explore further in the following link
    [http://help.sap.com/saphelp_erp60_sp/helpdata/en/f4/7d3f9344af11d182b40000e829fbfe/frameset.htm]
    get back in case u need more details

  • MF50 : Planning table and planning time fence

    HI,
    I use the transaction MF50 as planning table ( in order to do my MPS planning), I use "set firming date" to fix a firming date.
    Now, I want o know if it should possible to reveal a message when we create a planned order within the firming date??
    Thanks for your answer.

    Hi,
    For clarity , I am describing  below the functionlity of Set Firming date is explained as below:
    By setting Manual Firming date , we extend the planning time fence.
    If a planning time fence has been created for a material then the following applies:
    If the manual firming date lies before the end of the planning time fence, the planning time fence is still valid.
    If the manual firming date lies after the end of the planning time fence, the planning time fence is extended until this date.
    All order proposals with availability dates that lie before the end of the planning time fence of the manually extended planning fence are firmed for the planning run, if the materials have an MRP type which contains firming type or firming type 1 or 2
    The system does not automatically firm order proposals for materials that have an MRP type with firming type 3 or 4, even if their availability dates lie before the end of the planning time fence or manually extended planning time fence.
    Please check if this helps you.
    Regards
    Datta

  • Firmimg the orders and planning time fence

    Hi, Pls explain about firming and non-firming and planning time fence while running mrp or mps?what is meant by firming the orders?  i do not know how it work and how can we interpret the reults? pls explain with one example.

    Firming: When an order is firmed , indicates that the Order  no longer needs to be planned in MRP.
                  Order gets firmed, when we change plannde order manually and save .
    Planning time fence: the time period during which if any Order comes it gets firmed subject the Compatible MRP type.
                                    Depedning on whether they need to be firmed or not and when a new requirement is creatd in the planning horizon, How the receipt needs to be planned within the Planning time fence or out side is controlled in the MRP type.
    Regards
    Ratan

  • Planning time fence

    Dear Expert
    I have mantained PPDS planning time fences in product master view as 5 days .And i have created sales order and i have triggered GATP  planned orders are generated . after saving sales order . I have triggered GATP again I am getting new planned order which should not happened  Because as per PPDS planning time fence planned order with in that period are fixed .they should not change
    Please correct it If i am wrong
    regards
    Virender

    HI  Marius
    It is good notes
    But i am facing problem with my only finished material ,all my sub assembly materials are having fixed planned orders but finished material planned order is getting changed
    I have assigned ppds planning time fence for 5 days
    By F1 help i have got below note  it is creating little confusion
    Note
    You can specify a time fence interactively in the product view. It may override the planning time fence in the following way:
    If the time fence is after the end of the PP/DS planning time fence, planning is fixed until the time fence.
    If the time fence is before the end of the PP/DS planning time fence, planning is fixed until the end of the planning time fence
    Regards
    virender

  • Planning Time Fence Value

    Hi Team,
    I would like to maintain planning time fence value in material master. I do not have any clue that how to determine the value for the planning time fence. Some where i read that the planning time fence value will be the interval time between two MRP runs (ie, if i run MRP four days once, 4 days will be the planning time fence). Is this logic work out? Any guidance to determine the planning time fence for the material?
    Thanks

    Hi Mariano,
    Q1: By implementing Time Fence, you are losing flexibility, so this goes against the service level, so is not going to avoid cutting sales. However, sometimes you still need to use a time fence in order to provide some stability to your supply chain (maximize the use of your production capacity, coordinate the component replenishment with your vendors, etc..).
    Your statement is: "By implementing planning time fence, you are losing flexibility".
    "Losing Flexibility" means, if there is sudden sales requirement (Eg: Emergency sale order), accordingly the manufacturing plan will NOT be smoothened. Do you mean this as "Losing Flexibility"?
    For your information, i am using strategy group 40 for my FERT item. The strategy group 40 will be mainly used to smoothen the manufacturing plan according to the sudden sales requirement. Implementing strategy group 40 & planning time fence together for a material will be AGAINST of each other know?
    Coverage Profile:
    Your statement is:
    Q3: As coverage you can use different methods: coverage profile, safety time, safety stock, etc. The coverage profile is a key that needs to be predefined in advance. I will try to simplify the explanation. Suppose that your coverage profile says that you want to have 10 days of target coverage. If you have a constant forecast of 1000 CS per month and you have 20 working days in a month, this 10 days of target coverage will mean that you want to have 500 CS in excess of your forecast. So the MRP will plan to start the month with 1500 CS (1000 CS of forecast + 500 CS of coverage).
    According to you, the MRP will plan for 1500 CS instead of 1000 CS for the month. But for that particular month additional 100 requirement has come as emergency sale order. How to handle this? My requirement is "How to handle (cater) the emergency sale orders effectively in ECC?" Will "Back order processing in SD" can help to cater these kind of emergency cases?
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  • Planning time fence and planning cycle

    Dear Experts,
    Please provide me the clarity on planning time fence and planning cycle in MRP 1 view with example as i am not able to understand the SAP definition
    Regards,
    Phalgun Patel

    Phalgun,
    Planning time fence is a standard planning concept.  Here is SAP's version
    http://help.sap.com/saphelp_erp60_sp/helpdata/en/92/bf029544bd11d182b40000e829fbfe/frameset.htm
    Also, from SAP help
    Outside of the planning time fence, procurement proposals are created as usual in the planning run. When these procurement proposals move into the planning time fence, they are firmed automatically depending on the setting of the firming type.
    I don't think I explain it any more clearly.
    'Planning Cycle' can refer to several different concepts.  Can you quote the difinition you are finding difficult to understand?
    Best Regards,
    DB49

  • Difference between Stock Transfer Horizon and Planning Time Fence

    Hi Experts,
    Could you plz help to explain the difference between stock transfer horizon and planinng time fence?
    Appreciated your professional input to address my confusion.

    Hi Gavin,
    The stock transfer horizon is used in SNP planning, it is the time period within which SNP does not create any stock transfer requisitions.
    The planning time fence is used by PPDS planning. It is the time period within which the PPDS planning does not create any orders. The orders lying within this period are considered to be firmed by the PPDS planning.
    Functionally, the stock transfer horizon/ production horizon in SNP are analogous to the planning time fence in PPDS, which provide the system ability to keep the plan firm/unchanged within this period.
    Hope this helps!
    Regards,
    Umesh

  • Managing planning time fence ( P1 MRP type ) and firm zone in ME32L

    Hello,
    I want to know if there is or are some documents to know how to manage planning time fence in MM02 and firm zone in ME32L ?
    For me, in ME32L the firm zone is the firmed quantities sent to suppliers but not firmed for MRP so how to manage this easily ?
    Thanks.
    Romeo.

    Dear,
    Firm ZOne in SA, says that that much qty will be procured from that vendor with in that date specified, if not taken the production cost and cost related to that will be paid.
    Now the planing time fence, is the time with in which no change is allowed. Hence if there is any new requirement to that RM, then it will be pushed to outside the time fence.
    Hence if there is a schedule line which is already there and requirement is coved with in that, then your requirement is met, if not system will create a new schedule line in the trade off zone/planning zone.
    I hope you got the point.

  • Scheduling Agreement & Planning Time Fence

    Hello,
    I read a lot of articles on Planning Time Fence and the MRP Types P1 to P4 that goes with it. And I have tested it out in a Testing Environment.
    But I can't get it to do what I need.
    This is a normal planning with no PTF and MRP Type PD.
    Sometimes we have false requirements that show up in the past due to human error. When this happens, MRP rolls during the night and adds a bunch of deliveries in the past to cover the requirement.
    I wanted to use the PTF to prevent this. Meaning that extra deliveries would get added by MRP but after a PTF and not Firm deliveries. So that once the error is corrected, MRP rolls again and deleted all the extra deliveries it added.
    ** Only P2 and P4 adds deliveries after the PTF, but I need it to act normal on a day to day basis aswell and have MRP create deliveries like the print screen above. To add non-Firm deliveries after the PTF is just in rare cases of human error.
    Not sure if my explanation is clear.
    Patricia

    Hi Patricia,
    The planning time fence is there to stop MRP from making changes to requirements that fall within the planning time fence.
    Your planning time fence is a rolling period which shifts by 1 day each day and is calculated as of the current date. Yesterdays date is passed so it would not make sense for a planning time fence to use a date in the past to start it's calculation.
    Everything that falls before the end of the planning time fence will not be changed by MRP and you will see that all these schedule lines in MD04 will have an * assigned meaning they are firmed for MRP.
    If you manually add schedule lines in the past, the planning time fence will not stop you from doing this. The planning time fence will only stop MRP from making changes.
    By the way:
    If you manually add requirements to the scheduling agreement then MRP will never change these requirements as these are fixed requirements.
    If your customer would add requirements in the past or you add independent requirements in the past and your current stock does not cover the requirements the system will generate schedule lines and will put these directly after the planning time fence with an exception message assigned to them.
    As a side note:
    I always wonder why such questions arrive in the forum as this is something that can be very easily tested in the test environment.

  • Planning time fence and MRP question

    Good morning,
    We have the following requirement:-
    1. We want the Planning time fence to move once a week (by 1 week)
    2. If we have a schedule line at the end of the Planning time fence, we want this to   move inside the planning time fence (as per step 1)
    3. Put a fixing indicator on anything that falls into the Planning time fence (as per step 1).
    Thanks in advance

    mm

  • Planning Time Fence and Rescheduling Purchase Req

    How to Process the MD04 exception  u201C30 Plan Process According to Scheduleu201D for Purchase Req.
    Please provide me a Step by step procedure with example to Reschedule the Purchase Req with given rescheduling date.
    *Really I am confused with PLANNING TIME FENCE.
    What it does with Planned Order and Purchase Req ?
    Based on the some of threads in SDN, I couldnu2019t come to the conclusion of the terminology behind PTF.
    So could you please provide me an explanation with example will make clear idea on PTF.
    Thanks in Advance.

    dear friend,
    as far as i know, all planned orders that lie in the planning time fence are firmed. that means that they can no longer be changed automatically by the system in the planning run in long-term planning.
    outside the planning time fence, the system creates order proposals as usual according to the shortage quantity and the lot-sizing procedure. once these planned orders move into the planning time fence, they are automatically firmed depending on the how you have set the firming type.
    the planning time fence can be defined per material in the material master record or via the MRP group.

  • Exception message 56 "shortage in planning time fence" meaningless

    Hi,
    I would love to use in PP R3 this message 56 "shortage in planning time fence" to detect as a matter of priority the situations where planned orders are too late or too small to meet demand and a planned shortage exists.
    But this message seems to be generated only in the case of planning type M2 and M4, not M1 or M3.
    Also the result wont be the same if I use a coverage profile or a  safety time with both the same minimum stock coverage.
    And SAP put the exception on a forecast or customer order at a date when there is actually no planned shortage : there is enough stock to meet the demand.
    I would like to know if you found the same anomaly in SAP and how you work around this.
    thanks in advance for answers.
    Oliver

    Hi Manjula,
    Planning time fence is the time period in which system will not disturb the current plannng situation .
    The duration shown the MD61(selection screen] is the planning horizon. If you enter any date outside the planning horizon system will issue a warning message indicating the same.
    Thanks & regards
    Mahesh
    Reward points if useful

  • Planning time fence- MRP

    Hi Guys:
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    Thanks
    Kodali

    Hi Padmasri :
    How to freeze the order proposals if i am using MRP Type PD.
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    Could you explain how to manage this scenarious without timing fence and still using MRP type PD?
    Thanks
    Kodali

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