## Flow zone: Visualization
![visualisation_zone.png](ZrT820Se5LnY)
This zone prepares the output data for visualization in the dashboard.

It's the same logic for forecasts and backtest : to align forecast results with historical sales, a **Window recipe** computes a one-step lag of the target variable. Then, a **Prepare recipe** cleans and renames relevant columns to facilitate further processing.

Finally, a **Join recipe** brings together the forecast and backtest results into a single dataset used for dashboard visualizations.

If a **legacy forecast** was selected in the [Project Setup](article:11), it is also shared and included in this final join, allowing users to compare current and previous forecasts directly in the dashboard.