---
title: "Configure Change Blackout Window"
slug: "configure-change-blackout-window"
updated: 2026-01-14T16:24:21Z
published: 2026-01-14T16:24:21Z
canonical: "help.symphonysummitai.com/configure-change-blackout-window"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://help.symphonysummitai.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Configure Change Blackout Window

You can define the blackout periods for a CI or a set of CIs during the maintenance phase of the CI items. The time period during which the blackout is defined is referred as Freeze Time of CIs. During the Freeze Time, you cannot modify the CIs and the associated CRs.

To configure Change Blackout Window, perform the following steps:

1. Navigate to **CMDB** > **Import** > **Configuration** > **Change Blackout Window**.
2. On the **CHANGE BLACKOUT WINDOW** page, select the **Tenant** and click **ADD NEW** on the **ACTIONS** panel. ![](https://cdn.document360.io/62351b42-cfbd-43ad-8ce1-82b8f455337f/Images/Documentation/Change Blackout Window.png) Figure: Change Blackout Window
3. Click **Filters** on the **ACTIONS** panel, the **FILTERS** pop-up page is displayed. Provide data in all the filter fields and click **SUBMIT**. ![](https://cdn.document360.io/62351b42-cfbd-43ad-8ce1-82b8f455337f/Images/Documentation/Filters(12).png) Figure: FILTERS pop-up page

The following table describes the fields on the **FILTERS** pop-up page:

| **Field** | **Description** |
| --- | --- |
| Classification | Select the Classification for the CIs. |
| Configuration ID | Specify the CI ID range. |
| Host Name | Type in the name of the host name of the CIs. |
| Owner Workgroup | Select the Owner Workgroup of the CIs. |
| Vendor | Select the Vendor of the CIs. |
| Make | Select the make of the CIs. |
| Customer | Select the customer. |
| Location | Select the location. |

1. Select the **From Date, To Date, Time Zone,** and **CI Selection**. From **CI Selection** drop-down list, select **ALL CIs** or **Selected CI**. If ALL CIs is selected, the table is not displayed, and application consider all available CI for blackout. However, if Selected CI is selected, the table containing CI ID and relevant information is displayed where Administrators can select the required CI(s) for blackout.
2. Specify remarks in the **Remarks** field.
3. Click **SUBMIT.** The new **Change Blackout Window** is configured. ![](https://cdn.document360.io/62351b42-cfbd-43ad-8ce1-82b8f455337f/Images/Documentation/Change Blackout window2.png) Figure: Change Blackout Window

### ACTIONS

This section explains all the icons displayed on the **ACTIONS** panel of the CHANGE **BLACKOUT WINDOW** page.

#### **SHOW LIST**

Click **SHOW LIST** to display the **LIST** table showing all the configured change blackout windows for the selected Tenant.

To edit the Change Blackout Window, click **Change Blackout Window**. Make appropriate changes and click **SUBMIT**.

> [!NOTE]
> Note
> 
> When the list of Change Blackout Windows is displayed under the **LIST** table, the **ADD NEW** action is displayed on the **ACTIONS** panel. Click **ADD NEW** to configure a new Change Blackout Window.