Why Safety Stock Calculation is Different with User Guide?
Hi
I am implementing OPM-ASCP Constrained Plan EDD.
In the Plan Options:
Spread Forecast Evenly and Consume by Forecast Bucket was ticked
The planning bucket is 2 period 0 days 0 weeks
In Master Items:
Safety Stock Method = MRP Planned %
Bucket Days = 30
Percent = 1700
This is the horizontal Plan:
The demand from 15-Jul-25 until next 30 days is 5085656.47
Date | 7/15/2025 | 7/16/2025 | 7/17/2025 | 7/18/2025 | 7/19/2025 | 7/21/2025 | 7/22/2025 | 7/23/2025 | 7/24/2025 | 7/25/2025 | 7/26/2025 | 7/28/2025 | 7/29/2025 | 7/30/2025 | 7/31/2025 | 8/1/2025 | 8/2/2025 | 8/4/2025 | 8/5/2025 | 8/6/2025 | 8/7/2025 | 8/8/2025 | 8/9/2025 | 8/11/2025 | 8/12/2025 | 8/13/2025 | 8/14/2025 | 8/15/2025 | 8/16/2025 | 8/18/2025 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Demand | -164283 | -164282 | -164283 | -164282 | -164283 | -164282 | -164283 | -164282 | -164283 | -164282 | -164283 | -164282 | -164283 | -164282 | -164282 | -174761 | -174761 | -174761 | -174761 | -174761 | -174761 | -174761 | -174761 | -174761 | -174761 | -174761 | -174761 | -174761 | -174761 | -174761 |
Safety Stock = (Demand until next 30 days / 30) * (1700/100)
= (5085656.47 / 30) * 17
= 2881872
Why in the horizontal plan 3998994?
Thank you
Aji