Manufacturers hardly have full control over their sales. Existing prediction engines have significant limitations due to three main reasons:
1.The complexity of extracting data from most data sources (Excel files such as media plans, PDF reports…)
2.The inability to predict several effects that impact final sales (Social Media, competition…)
3.The incapacity to account for specific industry effects (Global Shoppers effect – Luxury, environmental government initiatives – Car industry…).