This guide is for older Shopify themes that do not support app blocks (pre-Online Store 2.0). If your theme supports app blocks, use the standard app block integration instead.
Open the theme editor and access your theme's code files.

Copy two files: one to the assets directory and one to the snippets directory. You will find these files at the bottom of the page.

Add the following to your /locales/en.default.json file:
"eprel_label": {
"title": "Product information sheet",
"alt_text": "Energy efficiency label",
"link_to_eprel_db": "More in EU EPREL Database"
},
Use the following Liquid code to render the energy label where you want it to appear:
{% render 'eprel-at-price',
product: product_resource,
show_label: true,
use_overlay: true,
color: '#92979E',
eprel_arrow_max_height: 30,
eprel_container_justify_content: 'center'
%}
The correct naming of the product variable depends on your theme — for example, sometimes it is referred to as just "product" instead of "product_resource". Consult your theme developer if you are unsure, or contact our support.