# Common Scenarios

Let us see some common forecasting scenarios in the upcoming sections. Three use cases are illustrated with examples:

1. [Forecasting using a blank template](https://docs.inforiver.com/working-with-inforiver/7.-planning-budgeting-and-forecasting/forecasting-writeback-matrix/common-scenarios/forecast-using-a-blank-template)
2. [Forecasting using existing data](https://docs.inforiver.com/working-with-inforiver/7.-planning-budgeting-and-forecasting/forecasting-writeback-matrix/common-scenarios/forecast-using-existing-data)
3. [Adding periods that are not available in the model](https://docs.inforiver.com/working-with-inforiver/7.-planning-budgeting-and-forecasting/forecasting-writeback-matrix/common-scenarios/adding-forecasts-for-periods-unavailable-in-the-model).
4. [Daily and weekly forecasts](https://docs.inforiver.com/working-with-inforiver/7.-planning-budgeting-and-forecasting/forecasting-writeback-matrix/common-scenarios/creating-daily-and-weekly-forecasts)