Please could someone tell me how can I configure the device's address in the alexa simulator environment.
Hi. Currently, it's not possible to configure the device address associated with the Alexa Developer Console Test tab. The address you will receive, regardless of whether you've chosen "Full Address" or "Country / Region & Postal Code Only" will be a country code of "US" and postal code of "20146."
That said, as a developer you can file this as a feature request on our UserVoice space here:
Custom slot is not picking up values 1 Answer