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MRP not considering reservation qty


I have taken MRP type as "Manual reord.point w. ext.reqs" Lot size as "Lot-for-lot order quantity"..



Max Lot=1000

Current stock=0

Now i created Reservation of 100000 pcs...

After that once i runned MRP in MD01, it has generated PR for 700 pcs only..

It has not takem reservations into cosideration...Why?

What missed?


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2 Answers

  • Best Answer
    Posted on Aug 03, 2009 at 06:35 AM


    taking reservations into consideration or not are controlled via MRP type...

    Please the SPRO settings for the MRP type at OMDQ and activate the Indicator under the tab "add. ext. req. in the reorder point planning"...



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    • Dear,

      Planning is carried out based on consumption: if the stock level falls below the reorder point after a goods issue, the material is flagged for planning. During the planning run, an order proposal is created according to the lot-sizing procedure. If you use a period lot-sizing procedure, forecast requirements (future consumption) are also taken into account in the lot-size calculation.

      Reservations, sales orders, and so on, are not taken into consideration in the planning file entry nor for materials planning.

      The reservation would be considered twice, because it is already contained in the reorder point which is generally calculated via the forecast using consumption data.

      Please refer OSS note 37697 dor details.

      Hope clear to you.



  • author's profile photo Former Member
    Former Member
    Posted on Aug 03, 2009 at 06:38 AM

    The reason behind this is the lot size "Lot-for-lot order quantity"

    If lot size is EX, system will definitely create PR of 700 quantity,

    Instead of this try with lot size HB

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