PUT
    /api/cp/chat/chatroom_message/{identifier}
  
  curl \
 --request PUT 'https://replace-with-own-host.iw-erp.de/api/cp/chat/chatroom_message/{identifier}' \
 --header "x-session-token: $API_KEY" \
 --header "Content-Type: application/json" \
 --data '{"data":{"id":42,"message_text":"string","completed":true}}'
        Request examples
  
  {
  "data": {
    "id": 42,
    "message_text": "string",
    "completed": true
  }
}
        Response examples (200)
  
  {
  "id": 42,
  "message_text": "string",
  "completed": true
}