Overview

A Device reports its internal state to the platform in four ways:

Type	Required	Modifiable by	Description
Telemetry	Yes	Device	Frequently changing values that build the Device's current state.
Details	No	Device	Rarely changing values that do not need continuous updates.
Configuration	No	Device & End Users	Values that the End Customer can modify from the Customer Portal.
Events	No	Device	One-off notifications about uncommon occurrences.

When deciding what to send, weigh frequency, ownership, and payload size — and never include sensitive data such as passwords or customer names.

The data falls into two logical groups:

Data consumed by customers via Widgets, Rules, dashboards, etc.
Data used by the manufacturer to understand Device usage in the field and improve the product.

Send as much state data as is reasonable. Rich historical data lets product managers build Widgets and reports, and feeds back into future product decisions.