Lovelace template variables to script

Configuration Frontend
1

Trying to pass variables to a script using a template in Lovelace.
Script fires, but no data passed as evidenced by the persistent notification.
Not sure what I’m doing wrong, have tried several variations on this theme…
Probably something obvious and stupid!
(n.b. I haven’t implemented the time aspect yet, need to get this working first)

Lovelace:

entities:
  - entity: input_select.all_cameras
    icon: 'mdi:numeric-1-box'
    name: Which Camera?
  - entity: script.camera_off_and_on_again
    name: Turn Off
    action_name: Turn Off
    tap_action:
      action: call-service
      service: script.camera_off_and_on_again
      service_data_template:
        camera_id: |
          {% if states('input_select.all_cameras') == "Front" %}
            camera.aarlo_front
          {% elif states('input_select.all_cameras') == "Back" %}
            camera.aarlo_back
          {% endif %}
show_header_toggle: false
title: Camera Mode
type: entities

Script:

# this is a script to turn a camera off and back on a specified time later
camera_off_and_on_again:
  alias: Turn Camera off and back on again later
  sequence:
  - service: persistent_notification.create
    data_template: 
      message: "Cam Off On {{camera_id}}"
      title: Cam Off On
      notification_id: 1234
2

Lovelace cannot contain templates. Your template needs to be in the script or in a middleman script.

3

Thank you!