Alexa echo dot group is not working

I installed the Alexa Media Player integration (via HACS) and can play TTS messages on individual echo dot’s no problem. I was reading about grouping the dots so I can send a broadcast message. One thread said that it was better to create a group in Alexa which I did (On my phone). I grouped about 7 echo dots into the “Echo Dot Group”. But when I try to send a message to the group nothing happens.

Any ideas what I’m doing wrong?

-Thanks

action: tts.speak
metadata: {}
data:
  cache: true
  media_player_entity_id: media_player.echo_dot_group
  message: Testing 123
target:
  entity_id: tts.home_assistant_cloud

IIRC, Amazon does not allow the method that tts.speak uses to be used with their groups.

Alexa Media Player - How to use the Notification Component

Be aware that, for most purposes (especially notifications), the custom Alexa Media Player integration has been supplanted by the core Alexa Devices integration.

Thank you, that’s is certainly good to know!