I'm declaring CloudWatch Metrics which contain units, the metrics are correct, the unit is set... however when I create a widget with the metric using awsx LineGraphMetricWidget,

unit

is not in the returned JSON. If I edit the properties in the dashboard source, I can add

"unit": "Percent"

and the dashboard honors this. However, this feature is undocumented: https://docs.aws.amazon.com/AmazonCloudWatch/latest/APIReference/CloudWatch-Dashboard-Body-Structure.html#CloudWatch-Dashboar[…]dering-Object-Format So I'm confused about whose bug/feature this really is.