AI-generated Key Takeaways
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The forecasting period for a keyword plan is associated with the keyword plan itself.
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The
intervalfield, which is required, specifies the date used for forecasting the plan. - 
          
The
intervalcan be a relative future date range (date_interval) or a custom future date range up to a year (date_range). - 
          
Custom date ranges (
date_range) for forecasting must be in the future and cannot exceed one year. 
The forecasting period associated with the keyword plan.
| Fields | |
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Union field 
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                   A future date range relative to the current date used for forecasting.  | 
              
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                   The custom date range used for forecasting. It cannot be greater than a year. The start and end dates must be in the future. Otherwise, an error will be returned when the forecasting action is performed. The start and end dates are inclusive.  |