# Customization Group

A customization group represents a set of options that can be selected or filled by the customer when purchasing a product. These groups are used for things like extra toppings, engraving text, or additional product features, and can contain various types of options (dropdowns, checkboxes, text fields, etc.).

## Usage Example

```liquid
{%- comment -%} Render all customization groups and their options for a product {%- endcomment -%}
{% for group in product.customization_groups %}
  <h3>{{ group.name }}</h3>
  {% if group.input_type == 'select' %}
    <select name="{{ group.id }}">
      {% for option in group.options %}
        <option value="{{ option.id }}">
          {{ option.title }}{% if option.price > 0 %} (+{{ option.price | money }}){% endif %}
        </option>
      {% endfor %}
    </select>
  {% elsif group.input_type == 'checkbox' %}
    <ul>
      {% for option in group.options %}
        <li>
          <label>
            <input type="checkbox" name="{{ group.id }}[]" value="{{ option.id }}">
            {{ option.title }}{% if option.price > 0 %} (+{{ option.price | money }}){% endif %}
          </label>
        </li>
      {% endfor %}
    </ul>
  {% else %}
    <ul>
      {% for option in group.options %}
        <li>
          {{ option.title }}{% if option.price > 0 %} (+{{ option.price | money }}){% endif %}
        </li>
      {% endfor %}
    </ul>
  {% endif %}
{% endfor %}
```

## Properties

### id

Returns the unique id for this customization group.

### name

Returns the name for this customization group.

### input_type

Returns the merchant selected type for this customization group. Possible values are:
select, radio, checkbox, textarea

### must_be_selected

Returns true if this customization group options must be selected in order to add the product to the cart.

### options

Lists customization group [options](/reference/liquid/objects/store/customization_group_option/).