Webhooks - deviceId -> customer mapping

Question regarding webhooks:

I can setup the webhook to send the coreId (deviceId). Once the webhook receives the request, I need to find out which customer has claimed this device. I do not see an API to retrieve this information. If the customer information can be sent in the data to the webhook, that would be even better.

The device ID is included in with ever webhook that is sent automatically. At least you can see it in the console when you view the sent webhooks.

You can also add device ID to the webhook data.