Template value should be a string for dictionary value @ data['action'][0]['data'] at creating my Blueprint

[parautenbach (Pieter Rautenbach)]

@snzyeee

value: |-
        {% set verbrauch = states('!input verbrauchssensor') |float |
        round(0) %}

Set these as variables in the YAML and use that. I think the docs have an example like that. Look at script variables.