I am working in a multivariable sales forecasting in AI Studio. I approached it in 2 different manners: first taking all data (which contains a KEYS columna that relate data from a 5 year period of time, the "KEY" column represents a distinct time series. This means that the data associated with each key is independent in terms of its temporal progression) and then trying to manage KEYS column as a multivariate. In the second case, I could not find a result. How to perform multivariable forecasting (with different keys and periods of time that are not unique) in the right way?
