# Troubleshooting service auto scaling in Amazon ECS


Application Auto Scaling turns off scale-in processes while Amazon ECS deployments are in progress, and they resume once the deployment has completed. However, scale-out processes continue to occur, unless suspended, during a deployment. For more information, see [Suspending and resuming scaling for Application Auto Scaling](https://docs.aws.amazon.com/autoscaling/application/userguide/application-auto-scaling-suspend-resume-scaling.html).