I am trying to append the list of account Ids since I don't have access to organization, but whenever i am doing it, previous accounts get replaced with new account ID and i only want to append them. Please let me know how to do it.
aws configservice put-configuration-aggregator --configuration-aggregator-name test-config --account-aggregation-sources "[{\"AccountIds\": [\"xxxxxx\",\"xxxx\"],\"AwsRegions\": [\"us-east-1\"]}]"