If the series you want to do forecasts for lack historic outcome data, the forecasts will be based on a hard coded default power curve. The program will warn the user each time forecasts are made without the sufficient number of observations needed for estimating the power curves. If you know you won’t have any data for the series, you can turn the warnings off by saving the default regression results to a file. More on this is found in the section “Optimizations for the Zephyros model” under “Evaluations of previous forecasts in Follow up”