This on-demand result forecast method uses GET to obtain the forecasting results of an on-demand forecasting job. To retrieve these results, send the forecast_id as a parameter with the value of the job_id you received when you made your on-demand forecasting request.
If you used the include_competing_ads parameter as part of a full on-demand request, you can configure your results you get with these parameters: ad_unit_ids, competing_ads_page and competing_ads_per_page.
You can use this method to poll periodically, which can be helpful since the time it takes to run on-demand forecasting may vary from seconds to minutes. If the on-demand forecasting finds no results, then this method returns a 422 error.
If you provided one webhook (AWS S3 information) to us before, the On-Demand result is also sent to the S3 bucket. If you have sent one parameters of “include_competing_ads” in a full Demand request, the On-Demand result includes the competing ads result.