Config allows you to search for, record, and continuously evaluate your resource configurations to make sure that your resources are in expected status.
To get full functionality of Config, you need to enable the resource recorder. If the resource recorder is disabled, you may fail to update your resource data or accurately evaluate your resources with rules. For details about how to enable and configure the resource recorder, see Configuring the Resource Recorder
Config provides you with resource information, such as resource inventory, details, relationships, and change records. It stores your resource data every 24 hours and notifications of your resource changes every 6 hours. It will also notify you when a change is made to your resources. In addition, it enables you to use Config rules to evaluate your resources.
You can use either of the following methods to access Config.
The console is a web-based UI, where you can perform operations easily. Log in to the management console, click in the upper left corner, and choose Management & Deployment > Config.
To integrate Config into a third-party system for secondary development, you need to access the service by calling APIs. For details, see Config API Reference.