Dear all
I am doing some research on the dynamic safety stock function in MRP.
From what I understood from reading various material was the following.
<conditions>
[Coverage profile]
1. The coverage profile has got the following parameters.
a) Determine range of coverage --> Period indicator M (Month)
b) Determin average requirements --> Number periods (3) --> 3 month
Type of per. lengh(3) --> standard days
No. of Days per Period --> 20
[Lot size in the material master data]
1. EX --> Lot for lot
[The planning date for the MRP run]
2012/06/27 (Year 2012, June, 27th)
The sales orders for the coming months are the following.
1. 2012/06: 100 PC
2. 2012/07: 100 PC
3. 2012/08: 100PC
4. 2012/09: 100PC
5. 2012/10: 100PC
6. 2012/11: 100PC
Under the conditions above, my understand for the "avarage daily requirements" for those month would be
calculated in the following formula.
requirements for each period/the total days specified in the coverage profile
So for the month of June, it would be:
Total days specified in the coverage profile = 3(Month) × 20 days = 60 days
requirements for June = 100 PC
average daily requirements = 100 PC / 60 days = 1.67
For July, it would be:
Total days specified in the coverage profile = 3(Month) × 20 days = 60 days
requirements for June = 100 PC
average daily requirements = 100 PC / 60 days = 1.67
However, when I actually have a look at MD04 for this material, the results are so different from what I expected...
I tried to understand this by myself, but it is now too confusing...
I would really appreciate any help for understanding how the avarage daily requirements for the dynamic safety stock...
Kind regards,
Takashi
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