name : deregister-scalable-target.rst **To deregister a scalable target** This example deregisters a scalable target for an Amazon ECS service called `web-app` that is running in the `default` cluster. Command:: aws application-autoscaling deregister-scalable-target --service-namespace ecs --scalable-dimension ecs:service:DesiredCount --resource-id service/default/web-app This example deregisters a scalable target for a custom resource. The custom-resource-id.txt file contains a string that identifies the Resource ID, which, for a custom resource, is the path to the custom resource through your Amazon API Gateway endpoint. Command:: aws application-autoscaling deregister-scalable-target --service-namespace custom-resource --scalable-dimension custom-resource:ResourceType:Property --resource-id file://~/custom-resource-id.txt Contents of custom-resource-id.txt file:: https://example.execute-api.us-west-2.amazonaws.com/prod/scalableTargetDimensions/1-23456789