• 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). 

# AWS Systems Manager reference
<a name="reference"></a>

The following information and topics can help you better implement AWS Systems Manager solutions.

**Principal**  
In AWS Identity and Access Management (IAM), you can grant or deny a service access to resources using the Principal policy element. The Principal policy element value for Systems Manager is `ssm.amazonaws.com`.

 **Supported AWS Regions and endpoints **  
See [Systems Manager service endpoints](https://docs.aws.amazon.com/general/latest/gr/ssm.html#ssm_region) in the *Amazon Web Services General Reference*.

 **Service Quotas**  
See [Systems Manager service quotas](https://docs.aws.amazon.com/general/latest/gr/ssm.html#limits_ssm) in the *Amazon Web Services General Reference*.

 **API Reference**  
See *[AWS Systems Manager API Reference](https://docs.aws.amazon.com/systems-manager/latest/APIReference/)*.

 **AWS CLI Command Reference**  
See [AWS Systems Manager section of the AWS CLI Command Reference](https://docs.aws.amazon.com/cli/latest/reference/ssm/index.html).

 **AWS Tools for PowerShell Cmdlet Reference**  
See [AWS Systems Manager section of the AWS Tools for PowerShell Cmdlet Reference](https://docs.aws.amazon.com/powershell/latest/reference/items/AWS_Systems_Manager_cmdlets.html).

 **SSM Agent Repository on GitHub**  
See [aws/amazon-ssm-agent](https://github.com/aws/amazon-ssm-agent).

 **Ask a Question**  
Systems Manager issues in [AWS re:Post](https://repost.aws/tags/TA-UbbRGVYRWCDaCvae6itYg/aws-systems-manager)

 **AWS News Blog**  
[Management Tools](https://aws.amazon.com/blogs/mt/)

**Topics**
+ [Using this service with an AWS SDK](sdk-general-information-section.md)
+ [Reference: Amazon S3 buckets for patching operations](patch-operations-s3-buckets.md)
+ [Reference: Amazon EventBridge event patterns and types for Systems Manager](reference-eventbridge-events.md)
+ [Reference: Cron and rate expressions for Systems Manager](reference-cron-and-rate-expressions.md)
+ [Reference: ec2messages, ssmmessages, and other API operations](systems-manager-setting-up-messageAPIs.md)
+ [Reference: Date and time string formats for Systems Manager](systems-manager-datetime-strings.md)