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Dynamic Safety Stock

I am using dynamic safety stock  with following config.

Period indicator     W Week

Number of periods    13
Type of per.length   1                               No. of Days per Period

Min.        Tgt   30    Max.                         Number of Periods        4

Min.        Tgt         Max.                         Number of Periods

Min.        Tgt         Max.

I have material which has following requirement in MD04..Lead time is 130 days.I run the MRP and it calculated the dynamic stock. Please check the screen shot.

09/02/2014 IndReq VSF   100.00- 100.00-

10/01/2014 IndReq VSF   100.00- 200.00-

11/03/2014 IndReq VSF   100.00- 300.00-

12/01/2014 IndReq VSF   100.00- 400.00-

01/02/2015 IndReq VSF   100.00- 500.00-

02/02/2015 IndReq VSF   100.00- 600.00-

03/02/2015 IndReq VSF   100.00- 700.00-

04/01/2015 IndReq VSF   100.00- 800.00-

05/01/2015 IndReq VSF   100.00- 900.00-

For month of September it's running standard MRP which I understand but for October I can't understand how it's calculated 245.17.I have period 13 weeks that means 65 days. I am not sure how many days system is considering to calculate the daily requirement.

Can  you please help me  to understand ?

Former Member


I can not review how the system calculates your working days.. I would need to review your calendar, how many working days you have, the holidays and even to debug the system to see what is calculating in case I can not reproduce the number.. Now it seems to be a reasonable number what you have.

Regarding the second question, without the rounding value you had two requisitions on 10.07.2014, one for 100 CS and the other for 245.17 CS. now with the rounding the first requisition is increased to 144CS and the second one to 240 CS... This is correct. You don't buy 288 CS, because instead buying 100 CS you bought 144 CS in the previous order.

Let me know if this explain your doubts and please close the thread in case your main question was answered.

Kind Regards,


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