Skip to Content

Dates for Backwards scheduling when MRP Run

Hello experts,

When MRP run, which calendar does SAP take to schedule planned orders? where could I indicate it?

Thanks in advance.

Laura

Add comment
10|10000 characters needed characters exceeded

  • Get RSS Feed

4 Answers

  • Best Answer
    Sep 08, 2014 at 08:49 AM

    Laura,

    MRP considers Plant factory calender for scheduling and dates determination Please check SCAL for FC.

    Check OP03 for FC assignment to your plant.

    Br

    KK

    Add comment
    10|10000 characters needed characters exceeded

  • Sep 08, 2014 at 09:50 AM

    Hi Laura,

    MRP considers the Factory Calendar assigned to the plant (you can see this assignment in table T001W or in the customizing) or the Planning Calendar assigned in the materials master (in case you have assigned a calendar).

    Kind Regards,

    Mariano

    Add comment
    10|10000 characters needed characters exceeded

    • Hi Laura

      MRP always consider the factory calendar assigned to the plant to calculate the planned order dates. It is possible to assign another factory calendar to the work center and it is used to calculate the operation production dates only.

      See also the note below:

      1895951 - Order dates and factory calendar

      BR

      Caetano

  • Sep 09, 2014 at 09:31 AM

    Thank you all,

    I have checked the calendar that is assigned to my plant, and, as you have said, is the one that is taking into consideration to determine the dates.

    In my case, Saturdays and Sundays are not workdays. As a result, every purchase requisition has its release date assigned to a workday.  What I have noticed is that although Saturdays and Sundays are not work days, planned delivery time and In-house production time is taking them into consideration to calculate the release date. What I mean is that those two fields are defined as calendar days. Is that correct??

    Thanks again.

    Add comment
    10|10000 characters needed characters exceeded

    • Hello Laura

      The planned delivery date is calculated in working days because the vendor may not follow exactly the same calendar than the plant. Since it is not possible to assign a factory calendar to the vendor, MRP considers that this value is defined in calendar days.

      If you want to know if some value is calculated in working days or in calendar days, check the F1 help.

      BR

      Caetano

  • Sep 09, 2014 at 12:57 PM

    Everything is clear now.

    Thanks everybody!!

    Regards.

    Laura.

    Add comment
    10|10000 characters needed characters exceeded