Master Planning on Demand forecast issue

Hi All DAXers,

I got a problem once running Master Planning for Item Demand forecast as the following description:

1. Create Item Demand forecast on the Header:

* Quantity = 100

* Date = May 1st, 2017

2. Then click save and click "Allocate forecast" to allocate 100pcs into 4 week period.

3. Select the "Period key" that already set up to split the Demand header quantity into 4-week-period.

4. Then in the "Allocation line", i got 4 lines with 25pcs each line.

5. Then run Master Planning for this item.

6. Problem now come up with the quantity as 200 pcs on Planned PO in stead of 100 pcs

--> System seemed to include the Header quantity into the Planned PO.

Please share me any of your ideal how to remove or get the system generated for only 100pcs.


Thanks and regards,

Hieu Le