• 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). 

# Use `DescribeMaintenanceWindowTargets` with a CLI
<a name="example_ssm_DescribeMaintenanceWindowTargets_section"></a>

The following code examples show how to use `DescribeMaintenanceWindowTargets`.

------
#### [ CLI ]

**Amazon CLI**  
**Example 1: To list all targets for a Maintenance Window**  
The following `describe-maintenance-window-targets` example lists all of the targets for a maintenance window.  

```
aws ssm describe-maintenance-window-targets \
    --window-id "mw-06cf17cbefEXAMPLE"
```
Output:  

```
{
    "Targets": [
        {
            "ResourceType": "INSTANCE",
            "OwnerInformation": "Single instance",
            "WindowId": "mw-06cf17cbefEXAMPLE",
            "Targets": [
                {
                    "Values": [
                        "i-0000293ffdEXAMPLE"
                    ],
                    "Key": "InstanceIds"
                }
            ],
            "WindowTargetId": "350d44e6-28cc-44e2-951f-4b2c9EXAMPLE"
        },
        {
            "ResourceType": "INSTANCE",
            "OwnerInformation": "Two instances in a list",
            "WindowId": "mw-06cf17cbefEXAMPLE",
            "Targets": [
                {
                    "Values": [
                        "i-0000293ffdEXAMPLE",
                        "i-0cb2b964d3EXAMPLE"
                    ],
                    "Key": "InstanceIds"
                }
            ],
            "WindowTargetId": "e078a987-2866-47be-bedd-d9cf4EXAMPLE"
        }
    ]
}
```
**Example 2: To list all targets for a maintenance window matching a specific owner information value**  
This `describe-maintenance-window-targets` example lists all of the targets for a maintenance window with a specific value.  

```
aws ssm describe-maintenance-window-targets \
    --window-id "mw-0ecb1226ddEXAMPLE" \
    --filters "Key=OwnerInformation,Values=CostCenter1"
```
Output:  

```
{
    "Targets": [
        {
            "WindowId": "mw-0ecb1226ddEXAMPLE",
            "WindowTargetId": "da89dcc3-7f9c-481d-ba2b-edcb7d0057f9",
            "ResourceType": "INSTANCE",
            "Targets": [
                {
                    "Key": "tag:Environment",
                    "Values": [
                        "Prod"
                    ]
                }
            ],
            "OwnerInformation": "CostCenter1",
            "Name": "ProdTarget1"
        }
    ]
}
```
For more information, see [View Information About Maintenance Windows (Amazon CLI)](https://docs.aws.amazon.com/systems-manager/latest/userguide/maintenance-windows-cli-tutorials-describe.html) in the *Amazon Systems Manager User Guide*.  
+  For API details, see [DescribeMaintenanceWindowTargets](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/ssm/describe-maintenance-window-targets.html) in *Amazon CLI Command Reference*. 

------
#### [ PowerShell ]

**Tools for PowerShell V4**  
**Example 1: This example lists all of the targets for a maintenance window.**  

```
Get-SSMMaintenanceWindowTarget -WindowId "mw-06cf17cbefcb4bf4f"
```
**Output:**  

```
OwnerInformation : Single instance
ResourceType     : INSTANCE
Targets          : {InstanceIds}
WindowId         : mw-06cf17cbefcb4bf4f
WindowTargetId   : 350d44e6-28cc-44e2-951f-4b2c985838f6

OwnerInformation : Two instances in a list
ResourceType     : INSTANCE
Targets          : {InstanceIds}
WindowId         : mw-06cf17cbefcb4bf4f
WindowTargetId   : e078a987-2866-47be-bedd-d9cf49177d3a
```
+  For API details, see [DescribeMaintenanceWindowTargets](https://docs.aws.amazon.com/powershell/v4/reference) in *Amazon Tools for PowerShell Cmdlet Reference (V4)*. 

**Tools for PowerShell V5**  
**Example 1: This example lists all of the targets for a maintenance window.**  

```
Get-SSMMaintenanceWindowTarget -WindowId "mw-06cf17cbefcb4bf4f"
```
**Output:**  

```
OwnerInformation : Single instance
ResourceType     : INSTANCE
Targets          : {InstanceIds}
WindowId         : mw-06cf17cbefcb4bf4f
WindowTargetId   : 350d44e6-28cc-44e2-951f-4b2c985838f6

OwnerInformation : Two instances in a list
ResourceType     : INSTANCE
Targets          : {InstanceIds}
WindowId         : mw-06cf17cbefcb4bf4f
WindowTargetId   : e078a987-2866-47be-bedd-d9cf49177d3a
```
+  For API details, see [DescribeMaintenanceWindowTargets](https://docs.aws.amazon.com/powershell/v5/reference) in *Amazon Tools for PowerShell Cmdlet Reference (V5)*. 

------

For a complete list of Amazon SDK developer guides and code examples, see [Using this service with an Amazon SDK](sdk-general-information-section.md). This topic also includes information about getting started and details about previous SDK versions.