Hi,

Yes, it’s possible to add a text label to the product reference price in Odoo 18, but it requires customizing the QWeb templates used for the website. By default, Odoo only displays the reference price as a strikethrough value without any explanation, which doesn’t meet the EU requirement to indicate the type of reference (e.g., MSRP, previous price).

Try the following steps

1-Create a custom field on product.template or product.product to store the reference price label, e.g., x_reference_price_label.

2-Activate Developer Mode → Go to Website → Configuration → Templates.

3-Inherit the product template (like website_sale.product) and modify the section that renders the reference price. For example, you can wrap the reference price with your new label:

<t t-if="product.lst_price">

    <span class="reference-price" t-att-title="product.x_reference_price_label">

        <t t-esc="product.lst_price"/>

    </span>

    <span class="reference-price-label" t-esc="product.x_reference_price_label"/>

</t>

4-Update the website and ensure the label appears under the strikethrough price.

This method lets you display both the reference price and a descriptive label explaining what it represents, making it compliant with EU regulations.

Hope it helps