Frustratingly, it’s not obviously possible to setup two individual Telegram bots and use them in Home Assistant.

In my scenario, I have an automation that sends a notification and photo when somebody comes to my front door. I want my wife to also get these notifications via Telegram.

The way to do this is to share and have the second user start a conversation with your Home Assistant Telegram bot, and then add that second user’s Chat ID to the allowed_chat_ids in Home Assistant’s configuration.yml.

telegram_bot:
  - platform: polling
    api_key: <bot-api-key>
    allowed_chat_ids:
      - <chat-id-1> # jake
      - <chat-id-2> # abbi

You must also add both Chat ID’s to target, in your telegram_bot.send_message action, to avoid the message only being sent to the first Chat ID defined above.

Target: An array of pre-authorised chat_ids to send the notification to. If not present, first allowed chat_id is the default.

action:
  - data:
      message: Test Message
      target:
        - <chat-id-1>
        - <chat-id-2>
    action: telegram_bot.send_message
    enabled: true

This works fine. My initial concern was that she would get all the many Home Assistant notifications I send to this bot, but because you can define the target in the automation, you can easily only include the second user in some notifications triggered by automations.