# Automated instance configuration in AMS Advanced
<a name="auto-instance-config"></a>

The AMS Advanced automated instance configuration service runs daily and automatically scans and updates the SSM and CloudWatch agents and configuration files on your managed EC2 instances. The updates apply, as needed to:
+ SSM and CloudWatch agents
+ CloudWatch configuration files

 These updates allow AMS to access your AMS-managed EC2 instances, and to configure your instances to emit appropriate [logs](https://docs.aws.amazon.com/managedservices/latest/userguide/auto-config-logs-cw.html) and metrics. 

**Topics**
+ [Prerequisites for automated instance configuration](auto-config-pre-reqs.md)
+ [SSM Agent automatic installation](ssm-agent-auto-install.md)
+ [Automated changes](auto-config-changes-made.md)