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author's profile photo Former Member
Former Member

FG and SFG Resource Capacity in CTM

Hello Experts,

I would like to ask your inputs on the behavior of CTM when it comes to FG and SFG Resource. Because in my case, resource capacity of SFG is different on resource capacity of FG. But I thought they should be the same? Since FG will just create dependent demand for SFG, so the assumption is that it will create the same Planned order values, which will consume the resource capacity.

I have this example for your understanding on what is happening:

Resource 1 ( for FG)

Demand = 100

Planned Order = 100 (created after CTM)

Resource capacity = 100%

Resource 2 (for SFG)

Dependent demand = 100

Planned Order = 80 (created after CTM)

Resource capacity = 100%

This is the one I thought that should happen:

Resource 1 ( for FG)

Demand = 100

Planned Order = 100 (created after CTM)

Resource capacity = 100%

Resource 2 (for SFG)

Dependent demand = 100

Planned Order = 100 ==> resource will create same Planned order because it has the same dependent demand from FG

Resource capacity = 100%

I will really appreciate if you will be able to throw me some light on this problem.

Thanks in advance.

Regards,
Ayana

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3 Answers

  • author's profile photo Former Member
    Former Member
    Posted on Dec 05, 2013 at 08:20 AM

    Hi Arca,

    As Sourabh, already informed about behavior.

    I would like to add something...

    Planned order creation of FG and SFG are dependent upon the capacity of resource on which they are manufactured (as per as SNP- constrained based planning is considered)

    if you use infinite capacity i am sure you will get the result which you expected.

    Planned order creation of SFG is not dependent on the planed order of FG . It is dependent on the dependent requirement created by FG planned order (depends on BOM quantity 1:1, 1:X etc), Capacity of resource(since constrained based in SNP), Lot size, rouding profile all parameters of SFG.

    Hope this help

    Regards,

    Pravin M.

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    • Former Member Former Member

      Hi Arca,

      I do not see any other options as such since this is working as expected as a part of Constrain based planning.

      Now today i had gone through 'Dmand and supply propogation'..i feel it can given a good solution for you based on current SFG situation how much FG you can manufacture. and you will always have similar order quantity for FG and SFG with this process.

      Supply and Demand Propagation - Supply Network Planning Run - SAP Library

      I never did this, nither any of my friends in the office, so i would appreciate if you try and share the results with me so i will also learn something new.

      Regards,

      Pravin M.

  • author's profile photo Former Member
    Former Member
    Posted on Dec 04, 2013 at 09:51 AM

    Hi Ayana,

    This seems to be correct behavior considering capacity of Resource 2 (SFG) seems to be lower then Resource 1 (FG).

    In your case as per demand CTM checks the capacity of resource 1 and it is creating planned order of 100.

    Now when system is trying to create dependent demand it checks capacity of Resource 2, which seems to be not enough for creating 100 SFG, so system is creating SFG as per capacity of resource 2.

    Assumption is resource 1 has higher capacity then resource 2 and which is lower then 100.

    If this is not the case, plz let me know.

    Rgds

    Sourabh

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  • Posted on Dec 11, 2013 at 12:08 PM

    Hi Arca

    The planned order will created according to the ddemand of SFG.The Requirement is 100 so it should created the receipt quantity of Requirement.

    Second point is that Resource Cap of SFG is less than FG for that day.

    The Resource capacity is only 80 which is less than demand....

    Sunil

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