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Calculation SAP APO Lot Size Procedure Groff (SAP_PP_013)


Can anyone help me to understand the Groff lot size heuristic in SAP APOPP/DS (SAP_PP_013)?

As far as I know the data from the product master „Procurement costs“ and „Stock costs“ are relevant for the calculation. Unfortunately I am not able to understand the way SAP APO calculates the lot sizes with the SAP_PP_013 procedure.

Is there any documentation available about the calculation in detail? Any online tool to see the calculation?

Thanks for your help and recommendations.

Best regards,

Jan Schmitz

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2 Answers

  • Best Answer
    Oct 19, 2016 at 04:38 PM

    Hi Jan,

    I don't have experience with SAP_PP_013, so I cannot provide a detailed answer myself, but I looked for what documentation is available on it anyway, hope this helps.

    Note "538201 - Groff reorder procedure/part period balancing" provides some calculation examples.

    In SE37, you can display Function Module /SAPAPO/HEU_PART_PERIOD and click Function Module Documentation button. This provides some detailed information on SAP_PP_013's behavior.

    Additionally, SAP Help for Lot-Sizing Procedure has in section Other Lot-Sizing Procedures some other information which may help.


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  • Oct 25, 2016 at 10:18 AM

    Hi Tiago,

    thank you very much for your help!

    Note 538201 looks good to me. It provides some new information that I did not find at any other place.



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