Maximum Number of Locations in a Manually Generated Plan
The maximum number of locations for which a plan can be generated from the Forecast Generation page, is specified by the forecastMaxLocations parameter in each forecast method. By default, this parameter is set to 50, which means that you can generate a plan for up to 50 locations at one time. Changing this setting is not recommended.
To generate more locations than the maximum specified by the forecastMaxLocations parameter, use the Forecast Generation task in the Job Scheduler, which supports an unlimited number of locations. See Generating a Plan Using a Scheduled Task.
To view this parameter setting, select the menu path: