> For the complete documentation index, see [llms.txt](https://docs.fabricplan.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.fabricplan.com/user-guide/6-forecasts-rolling-forecasts-and-statistical-forecasts/6-3-rolling-forecasts.md).

# 6.3 - Rolling forecasts

Learn how to manage rolling forecasts by manually closing forecast periods, extending forecast ranges, and configuring actions for closed periods. These settings help maintain forecast accuracy while extending planning horizons for future forecast cycles.

## Manually close periods

1. Select **Period** in the **Model** ribbon.

![](/files/1H4G8esXKinOouYMZNGO)

2. In the **Period** menu, select **Close Period**.

![](/files/xeTShgNtsAyt3QggAy30)

3. Select the **Forecast** measure to close.

![](/files/jBJFfnUEkzR86Z66eAqZ)

4. Select the period to close. In this example, the previous month is selected.

![](/files/D9QQfP5mJVh053L93Hrm)

5. Select **Custom** to define a custom close period range instead of using the predefined period options.

![](/files/O8I4Cawa7qYlw2cilLBI)

## Extend the forecast range

1. Select **Extend Forecast Range** to add new forecast periods after the selected closed period.

![](/files/rVk2HBDr7FjYWBGl4rDn)

2. Select **1 Month** as the extension duration.

![](/files/qK4JTONFacx0d65OgkwA)

3. Select **Preview** to review the updated forecast range and verify that the forecast extension is applied as expected before saving the change.

![](/files/yRBqOFTFNgOGH2g2hOfd)

4. Select **Save** to apply the forecast range extension.

![](/files/SUtnmBnT6mRVjSHXeQiy)

5. Review the extended forecast periods in the planning sheet. Verify that **Jan 2027** has been added and is available for forecast input.

![](/files/9pdPhEpBcfmIojdwjDQ1)

## Configure closed period actions

1. In the **Planning** ribbon, select **Insert Column** > **Manage measures**.

![](/files/aavqQ41hD23zZCc7XFhn)

2. Select the edit icon for the **Forecast** measure.

![](/files/CwhjiYGijT8sKPGfA6Ji)

3. Update the closed period range and configure the forecast settings that should apply when periods are closed.

![](/files/hHv5vJwpApgeoxCT1kXW)

4. Select the required action for closed periods.

* Select **Overwrite forecasts** to replace forecast values with actual performance data.

![](/files/r1DTLXT0quqmG4JUTCrf)

* Select **Retain forecasts** to preserve forecast values for closed periods.

![](/files/s6uT2bOQ07nJxlVRtt2P)

5. Select **Update** to apply the forecast configuration.

![](/files/bzWaW6wWlFESwToMjK4Q)


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