What is an auction forecast?

There are three types of auction forecasts:
Targeting coverage forecast
Calculates average targeting coverage by week. The calculation factors in all chosen targeting types.
The Show forecast button appears when you create/edit targeting types for your line:
Schedule forecast
Calculates whether a line will be fulfilled during the period indicated in the plan.
The Show forecast button appears when you create/edit a line:
Average CPM forecast
Calculates the average CPM that factors in the indicated parameters for the schedule.