Open Doorbell app from Snapshot notification

I have successfully sent a snapshot notification to my android phone when my doorbell is pressed. Now, I want to be able to click on that snapshot and it open the Reolink (doorbell) app on my phone. I’ve read through all the documentation here: Standard Attachments | Home Assistant Companion Docs

I can’t seem to figure out what I’m doing wrong. Here is a snip of my automation code:

      - service: notify.mobile_app_pixel_6_pro
        data:
          message: Someone is at the front door
          data:
            clickaction: "app://com.mcu.reolink"
            image: >-
              local/doorbell/doorbell_snapshot_{{
              states('input_text.now_variable') }}.jpg
            ttl: 0
            priority: high

When I click on the notification, it just opens the HA companion app. I’ve also attempted to use an URI action and still get the same behavior.

Example from docs

- action: "URI"
  title: "Open Twitter"
  # Name of package for application you would like to open
  uri: "app://com.twitter.android"

From here

This is not right. It’s clickAction

This is not for notifications but for a link on the dashboard

Thank you! I feel so dumb that was the issue…

@copekyle Thanks for the useful info here - I’ve set up an automation for my Reolink Doorbell using this. Were you able to get the same snapshot images in your notifications when outside of your home network? I have Tailscale setup on my phone and in HA which allows access to HA externally, but I’m not getting the image file included, just the push notification.