I was working on the impact of seasonal curve for Demand Planning.
What I saw, the seasonal curve either can be attached with Item group or Product group.
This means the seasonal influence on demand planning is w.r.t Item and Company. But scenarios are never like that, one company can have multiple facilities and warehouses and demand across the facility with seasonal fluctuations are different altogether. In simple term different market has different seasonal demand. So, how can we manage that in Demand planning?