The media_player.play_media service and parameters depend on the entity passed in. The first example uses the Plex integration while the second uses the Google Home integration. Unfortunately they can’t be used the same way and it won’t understand the Plex-specific payload you’re passing in.
Ok, i understand. I have create a new plex cast on my google home and retry. I have change variable “media_player.google_home_salon” by cast like “media_player.plex_plex_cast_chromecast”. it’s the same, it doesn’t work.
anyone know a payload for start music playlist on google home ?