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Apr 21, 2014 at 09:11 AM

Seasonal + Trend forecast calculation

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all,

We are using Consumption based planning with MRP type VV and Forecast model - X and material master maintained as below.

For testing purpose, I have maintained past consumption for last 6 month as below screen shots.

When I execute forecast from Material master tab, I got basic values, MAD, safety stock & error total as below..

How System is calculating above values?. I have gone through the formula but didn't understood and also gone through below link but didn't get sna idea.

http://http://scn.sap.com/community/erp/post!input.jspa?containerType=14&container=2110&content Type

And How System calculate below corrected forecast values?

Please help to understand calculation.

Attachments

master data.JPG (25.3 kB)
Basic value.JPG (17.2 kB)
forecast.JPG (17.3 kB)