There's more...

Let's consider an example to understand how the pricing works.

A device ingests the 1 KB device-to-cloud message size data per minute to the IoT Hub. The solution backend invokes a method (with 512 bytes of payload) on the device every ten minutes to trigger a specific action. The device responds to the method with a result of 200 bytes.

The device consumes 1 message * 60 minutes * 24 hours = 1440 messages per day for the device-to-cloud messages, and 2 requests plus responses * 6 times per hour * 24 hours = 288 messages for the methods, for a total of 1728 messages per day.