AWS Systems Manager
User Guide

Use Cases and Best Practices

This topic lists common use cases and best practices for AWS Systems Manager capabilities. If available, this topic also includes links to relevant blog posts and technical documentation.


The title of each section here is an active link to the corresponding section in the technical documentation.



  • Use Systems Manager Inventory with AWS Config to audit your application configurations over time.

Maintenance Windows

  • Define a schedule to perform potentially disruptive actions on your instances such as OS patching, driver updates, or software installations.

Patch Manager

  • Use patch manager to rollout patches at scale and increase fleet compliance visibility across your instances.

State Manager

Managed Instances

  • Systems Manager requires accurate time references in order to perform its operations. If your instance's date and time are not set correctly, they may not match the signature date of your API requests. In some cases, this will lead to errors or incomplete functionality. For example, instances with incorrect time settings will not be included in your lists of managed instances.

    For information on setting the time on your instances, see the following topics: