Copy-paste a Liquid snippet for product page - 'Notify on WhatsApp' for sold-out products - opens WhatsApp with the product link prefilled.
1{%- assign msg = 'Let me know when ' | append: product.title | append: ' is back: ' | append: shop.url | append: product.url | url_encode -%}2<a class="gpl-wan" href="https://wa.me/{{ wa }}?text={{ msg }}" target="_blank" rel="noopener">3 <svg viewBox="0 0 24 24" fill="currentColor"><path d="M17.47 14.38c-.3-.15-1.76-.87-2.03-.97-.27-.1-.47-.15-.67.15-.2.3-.77.97-.94 1.17-.17.2-.35.22-.65.07-.3-.15-1.25-.46-2.39-1.47-.88-.79-1.48-1.76-1.65-2.06-.17-.3-.02-.46.13-.61.13-.13.3-.35.45-.52.15-.18.2-.3.3-.5.1-.2.05-.38-.02-.53-.08-.15-.67-1.62-.92-2.22-.24-.58-.49-.5-.67-.51h-.57c-.2 0-.52.07-.8.37-.27.3-1.04 1.02-1.04 2.5 0 1.47 1.07 2.9 1.22 3.09.15.2 2.1 3.2 5.08 4.49.71.3 1.26.49 1.7.62.71.23 1.36.2 1.87.12.57-.09 1.76-.72 2.01-1.42.25-.7.25-1.3.17-1.42-.07-.12-.27-.2-.57-.35"/></svg>4 {{ label | default: 'Notify me' }}5</a>
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