AWS Config uses the configuration recorder to detect changes in your resource configurations and capture these changes as configuration items. You must create a configuration recorder before AWS Config can track your resource configurations.As AWS Config continually records the changes that occur to your AWS resources, it sends notifications and updated configuration states through the delivery channel. You can manage the delivery channel to control where AWS Config sends configuration updates. You can have only one delivery channel per region per AWS account, and the delivery channel is required to use AWS Config.