• The AWS 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.aws.amazon.com/AmazonCloudWatch/latest/monitoring/CloudWatch_Dashboards.html). 

# Importing and managing events from third-party calendars
<a name="third-party-events"></a>

As an alternative to creating events directly in the AWS Systems Manager console, you can import an iCalendar (`.ics`) file from a supported third-party calendar application. Your calendar can include both imported events and events that you create in Change Calendar, which is a tool in AWS Systems Manager.

**Before you begin**  
Before you attempt to import a calendar file, review the following requirements and constraints:

Calendar file format  
Only valid iCalendar files (`.ics`) are supported.

Supported calendar providers  
Only `.ics` files exported from the following third-party calendar providers are supported:  
+ Google Calendar ([Export instructions](https://support.google.com/calendar/answer/37111))
+ Microsoft Outlook ([Export instructions](https://support.microsoft.com/en-us/office/export-an-outlook-calendar-to-google-calendar-662fa3bb-0794-4b18-add8-9968b665f4e6))
+ iCloud Calendar ([Export instructions](https://support.apple.com/guide/calendar/import-or-export-calendars-icl1023/mac))

File size  
You can import any number of valid `.ics` files. However, the total size of all imported files for each calendar can't exceed 64KB.  
To minimize the size of the `.ics` file, ensure that you are exporting only basic details about your calendar entries. If necessary, reduce the length of the time period that you are exporting.

Time zone  
In addition to a calendar name, a calendar provider, and at least one event, your exported `.ics` file should also indicate the time zone for the calendar. If it does not, or there is a problem identifying the time zone, you will be prompted to specify one after you import the file.

Recurring event limitation  
Your exported `.ics` file can include recurring events. However, if one or more occurrences of a recurring event had been deleted in the source calendar, the import fails.

**Topics**
+ [Importing events from third-party calendar providers](change-calendar-import.md)
+ [Updating all events from a third-party calendar provider](change-calendar-import-add-remove.md)
+ [Deleting all events imported from a third-party calendar](change-calendar-delete-ics.md)