Hello @virgilio espina. The "unique_id" is used to identify different time-series on your dataset. This is user generated because it depends on your data.
Cristian (Nixtla)
01/18/2023, 7:48 PM
There is no constrains on the values, and the actual values will not affect the forecast. Simply use different identifiers (eg. "product_a", "product_b") for all the observations of each time-series. We have some examples here: https://nixtla.github.io/neuralforecast/examples/getting_started.html