name : start-discovery.rst **To enable this Amazon Web Services account to be able to use CloudWatch Application Signals** The following ``start-discovery`` example enables this Amazon Web Services account to be able to use CloudWatch Application Signals by creating the *AWSServiceRoleForCloudWatchApplicationSignals* service-linked role. :: aws application-signals start-discovery This command produces no output. For more information, see `Application Signals <https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/CloudWatch-Application-Monitoring-Sections.html>`__ in the *Amazon CloudWatch User Guide*.