AWS "IoT Shadow" documentation missing

There is some guidance on the wiki site about how to connect a FMB140 device to AWS IoT Core (FMB140 Getting Started with AWS IoT Core - Wiki Knowledge Base | Teltonika GPS).

I have a FMC920, and the steps in the guide is applicable on the FMC920 device as well.

However, in the device configuration, there is an option named “Aws IoT Shadow” for which i can’t find any documentation on.

What is the difference between the “AWS IoT Shadow” and “AWS IoT Custom”? One difference is that there isn’t needed to input datatopic/commandTopic in the “AWS IoT Shadow” option.

What i also wonder is if there is any way to utilize the “shadow” functionality to manage settings on the device?

The documentation explains how to send a “CMD” MQTT packet to the device. One option is to set this packet as retained. - But it would have been nice if the desired/reported functionality in the shadow could be used to apply settings based on different ID:s in the device.


Good day, to get the documenation for it kindly contact your sales manager or create a helpdesk ticket,. If you don’t have any contact with our Sales managers, please contact them on our official website and click on the “Contact Us” button. When you will click, please fill out the form and submit it. Note: as a topic, please choose “Vehicle telematics”. Or you can send an e-mail with a description of your situation to

Best Regards,
Maynard C.