**To delete the account settings for a specific IAM user or IAM role** The following example ``delete-account-setting`` deletes the account settings for the specific IAM user or IAM role. :: aws ecs delete-account-setting \ --name serviceLongArnFormat \ --principal-arn arn:aws:iam::123456789012:user/MyUser Output:: { "setting": { "name": "serviceLongArnFormat", "value": "enabled", "principalArn": "arn:aws:iam::123456789012:user/MyUser" } } For more information, see `Amazon Resource Names (ARNs) and IDs <https://docs.aws.amazon.com/AmazonECS/latest/developerguide/ecs-resource-ids.html>`_ in the *Amazon ECS Developer Guide*.