Working with asset property notifications
You can enable property notifications to publish asset data updates to Amazon IoT Core, and then run queries on the your data. With asset property notifications, Amazon IoT SiteWise provides an Amazon CloudFormation template that you can use to export Amazon IoT SiteWise data to Amazon S3.
Note
Asset data is sent to Amazon IoT Core every time it's received by Amazon IoT SiteWise, regardless of if the value has changed.