What is the best option or rather options to predict how much order a customer will place in the future, say next 3 months on a monthly basis. Also will a customer place an order.
I used ARIMA to predict the future order but the MAPE is quite high. Basically what i have done is predict the probability of a customer placing an order using survival analysis and then multiplied that with the predicted order quantity.
Does that make sense or is there something fundamentally wrong with the approach?