All devices, aka things, registered in your namespace should be visible in the Things view.
This view will display all available things in the context of your user (service subscription owner).
It offers various management actions e.g. search, filter, sort and delete.
Make sure that your newly registered thing is listed there.
Click the row of a thing, to see its details.
You can enlarge or collapse nearly all views according to your needs.
The Thing view gives you access to:
watch updates of Features properties coming from the physical device, or to change them in the manage features view
send a Message (aka live message) from or to the thing, e.g. to trigger an operation at the physical device
view a representation of the thing in JSON format
manage the Policy
manage the Device and its credentials (Bosch IoT Hub context)
Upon configuration, the Things view can also display whether or not a device is connected and is ready for communication.
Find details at Reflect device connectivity status in thing.