# How To Run A One-Time Reforecast

## Objective

Regenerate demand for a selected future window using newer information than the original forecast run.

## Environment

- You have permission to manage forecasts.
- The forecast was generated from historical data and has a completed baseline run. The reforecast flow is unavailable for uploaded forecasts.
- The selected training and forecast ranges have enough usable historical data.

## Resolution

1. Open the generated forecast from **Forecasts** and select **Reforecast**.
2. Select **Create Reforecast** and leave **Run once** selected for a single run.
3. Review the training window and reforecast window in the forecast timezone. The training range must end before the period being evaluated or forecast; correct any blocking range message before continuing.
4. Review the queue and channel scope and any backlog options shown. Select **Run Reforecast**.
5. Watch the run status on **Reforecast**. When it completes, open the run to inspect its result. Use [How To Compare A Reforecast With The Baseline](/help/articles/compare-a-reforecast-with-the-baseline/) before changing a plan.

If a run is already queued or processing, wait for it to finish.

> Canonical page: https://zenops.cx/help/articles/run-a-reforecast/
> Audience: For planners and managers
> Summary: Regenerate demand for a future window using newer information.

## Notes on this article

### Important: Coverage is not published automatically

After step 5 in resolution. A completed one-time reforecast does not by itself publish new required coverage to the baseline forecast.

## Visual references

- The Create Reforecast dialog brings the run mode, date ranges, backlog settings, and period timeline together for review before you start.: [Create Reforecast dialog with Run once selected, historical training and forecast ranges, backlog enabled with selected statuses and schedule capacity, period timeline, and Run Reforecast button.](https://zenops.cx/help/assets/reforecast-create-dialog.png)