• The Amazon Systems Manager CloudWatch Dashboard will no longer be available after April 30, 2026. Customers can continue to use Amazon CloudWatch console to view, create, and manage their Amazon CloudWatch dashboards, just as they do today. For more information, see [Amazon CloudWatch Dashboard documentation](https://docs.amazonaws.cn/AmazonCloudWatch/latest/monitoring/CloudWatch_Dashboards.html). 

# Sharing a change calendar
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You can share a calendar in Change Calendar, a tool in Amazon Systems Manager, with other Amazon Web Services accounts by using the Amazon Systems Manager console. When you share a calendar, the calendar is read-only to users in the shared account. Maintenance windows, State Manager associations, and automations aren't shared.

**To share a change calendar**

1. Open the Amazon Systems Manager console at [https://console.amazonaws.cn/systems-manager/](https://console.amazonaws.cn/systems-manager/).

1. In the navigation pane, choose **Change Calendar**.

1. In the list of calendars, choose the name of the calendar that you want to share.

1. On the calendar's details page, choose the **Sharing** tab.

1. Choose **Actions, Share**.

1. In **Share calendar**, for **Account ID**, enter the ID number of a valid Amazon Web Services account, and then choose **Share**.

   Users of the shared account can read the change calendar, but they can't make changes.