How To Add WhatsApp Order Button in Product Page [Shopify]

Add following code in main-product file above {%- when ‘quantity_selector’ -%}:

{%- when 'whatsapp-button' -%}
{% render 'whatsapp-button', block: block, section: section %}

Add schema code below “@app ”:

{
      "type": "whatsapp-button",
      "name": "Whatsapp Button",
      "limit": 1,
      "settings": [
        {
      "type": "text",
      "id": "whatsapp_number",
      "label": "WhatsApp Number",
      "info": "Enter your WhatsApp number with country code (e.g., +40700000000)",
      "default": "+40700000000"
    },
    {
      "type": "text",
      "id": "button_text",
      "label": "Button Text",
      "default": "Order on WhatsApp"
    },
    {
      "type": "text",
      "id": "default_message",
      "label": "Default Message (for non-product pages)",
      "default": "Hello, I would like to know more about your products"
    },
    {
      "type": "text",
      "id": "product_message",
      "label": "Product Message Format (for product pages)",
      "default": "Hello, I would like to buy this product: {product_name} - Price: {product_price}",
      "info": "Use {product_name} and {product_price} as placeholders"
    },
    {
      "type": "color",
      "id": "button_bg_color",
      "label": "Button Background Color",
      "default": "#25D366"
    },
    {
      "type": "color",
      "id": "button_text_color",
      "label": "Button Text Color",
      "default": "#ffffff"
    },
    {
      "type": "range",
      "id": "button_padding",
      "label": "Button Padding",
      "min": 5,
      "max": 30,
      "step": 1,
      "default": 15
    },
    {
      "type": "range",
      "id": "button_border_radius",
      "label": "Button Border Radius",
      "min": 0,
      "max": 40,
      "step": 1,
      "default": 8
    },
    {
      "type": "range",
      "id": "container_width",
      "label": "Container Width",
      "min": 100,
      "max": 1200,
      "step": 50,
      "default": 300
    },
    {
      "type": "select",
      "id": "alignment",
      "label": "Button Alignment",
      "options": [
        {
          "value": "left",
          "label": "Left"
        },
        {
          "value": "center",
          "label": "Center"
        },
        {
          "value": "right",
          "label": "Right"
        }
      ] }
        ]
    },

Create a new sinppet “whatsapp-button.liquid” and add the following code:

<style>
  .whatsapp-button-section {
    margin: 25px 0;
    text-align: {{ block.settings.alignment }};
  }

  .whatsapp-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
    width: 100%;
    max-width: {{ block.settings.container_width }}px;
  }

  .whatsapp-btn:hover {
    opacity: 0.9;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
  }

  .whatsapp-icon {
    margin-right: 10px;
    display: inline-block;
    width: 20px;
    height: 20px;
  }

  @media screen and (max-width: 767px) {
    .whatsapp-btn {
      max-width: 100%;
    }
  }
</style>

<div class="whatsapp-button-section">
  {% if product %}
    {% comment %} On product pages, use product name and price {% endcomment %}
    {% capture product_name %}{{ product.title }}{% endcapture %}
    {% capture product_price %}{{ product.price | money }}{% endcapture %}

    {% assign message_template = block.settings.product_message %}
    {% assign message = message_template
      | replace: '{product_name}', product_name
      | replace: '{product_price}', product_price
    %}
  {% else %}
    {% comment %} On non-product pages, use default message {% endcomment %}
    {% assign message = block.settings.default_message %}
  {% endif %}

  <a
    href="https://wa.me/{{ block.settings.whatsapp_number }}?text={{ message | url_encode }}"
    class="whatsapp-btn"
    target="_blank"
    style="
      background-color: {{ block.settings.button_bg_color }};
      color: {{ block.settings.button_text_color }};
      padding: {{ block.settings.button_padding }}px;
      border-radius: {{ block.settings.button_border_radius }}px;
    "
  >
    <svg class="whatsapp-icon" viewBox="0 0 24 24" fill="currentColor">
      <path d="M17.472 14.382c-.297-.149-1.758-.867-2.03-.967-.273-.099-.471-.148-.67.15-.197.297-.767.966-.94 1.164-.173.199-.347.223-.644.075-.297-.15-1.255-.463-2.39-1.475-.883-.788-1.48-1.761-1.653-2.059-.173-.297-.018-.458.13-.606.134-.133.298-.347.446-.52.149-.174.198-.298.298-.497.099-.198.05-.371-.025-.52-.075-.149-.669-1.612-.916-2.207-.242-.579-.487-.5-.669-.51-.173-.008-.371-.01-.57-.01-.198 0-.52.074-.792.372-.272.297-1.04 1.016-1.04 2.479 0 1.462 1.065 2.875 1.213 3.074.149.198 2.096 3.2 5.077 4.487.709.306 1.262.489 1.694.625.712.227 1.36.195 1.871.118.571-.085 1.758-.719 2.006-1.413.248-.694.248-1.289.173-1.413-.074-.124-.272-.198-.57-.347m-5.421 7.403h-.004a9.87 9.87 0 01-5.031-1.378l-.361-.214-3.741.982.998-3.648-.235-.374a9.86 9.86 0 01-1.51-5.26c.001-5.45 4.436-9.884 9.888-9.884 2.64 0 5.122 1.03 6.988 2.898a9.825 9.825 0 012.893 6.994c-.003 5.45-4.437 9.884-9.885 9.884m8.413-18.297A11.815 11.815 0 0012.05 0C5.495 0 .16 5.335.157 11.892c0 2.096.547 4.142 1.588 5.945L.057 24l6.305-1.654a11.882 11.882 0 005.683 1.448h.005c6.554 0 11.89-5.335 11.893-11.893a11.821 11.821 0 00-3.48-8.413z"/>
    </svg>
    {{ block.settings.button_text }}
  </a>
</div>