Planning Model as Data Source

SAP Analytics Cloud allows you to create planning models and run predictive time series forecasts on your data within a story grid or table. For more information, refer to Predictive Time Series Forecasting.

With Smart Predict you can go one step further and generate forecasts per entities to get accurate business-oriented insights, not only raw forecasts. You can directly use your planning model as the data source, no need to extract data in a dataset.

Smart Predict uses the data available in your planning model to create and train a predictive model. You can then analyze predictive forecast accuracies across the combined dimension values and understand signal breakdown in details. Once you are satisfied with the accuracy of your predictive model, you can generate the predictive forecasts: they are saving back directly in the private version of your planning model. It’s then easy for you to augment your story with actual and predictive forecasts.

You can find a detailed use case using a planning model as data source. Read this blogInformation published on SAP site.
Note
They are restrictions on using planning models as data sources. See Restrictions