Not making any significant progress with Sonos Support after submitting problem details 2 weeks ago and a Diagnostics submission just after that so posting this to see if anyone else has similar issues.
The Sonos beam responds to Alexa commands but there is a problem with how it is integrated in the Alexa app which is unable to set Device Location or Device Time Zone. I can't set this data manually either, I get an error message that "We weren't able to update the address associated with this device. Please check your network connectivity and try again later" or "We weren't able to update your device time zone. Please check your network connectivity and try again later". I've removed the Beam from Alexa and worked through the set up again with no improvement. BTW, I have yet to see a formal process from Sonos as to how to factory reset the Beam, that may be an option but I don't feel inclined to waste more time doing that and/or resetting Controllers on mobiles, tablets and PCs without any kind of substantive evidence from Sonos explaining how this will fix the problem.
I have Sonos 1 and Sonos 3 and they both show Device Location and Device Time Zone.
All non-Sonos Alexa devices show Device Location and Device Time Zone in the Alexa app.
In the Sonos app I can see the Beam (designated as Sonos Beam). In the Alexa app under Alexa Devices, Settings and Smart Home show the Sonos Beam. In the Alexa app under Smart Home I also have a Sonos Beam TV!
Does anyone else see this problem with inability to enter Device Location/Device Time Zone and have you managed to resolve the issue?