//Copy and paste the code below into your product.liquid
// Following code will display field as required + Will show in checkout page
<p class="line-item-property__field">
<label for="your-name">Your name</label>
<input required class="required" id="your-name" type="text" name="properties[Your name]">
</p>
// Following code will display field as required but it will not show in checkout page
<p class="line-item-property__field">
<label for="your-name">Your name</label>
<input required class="required" id="your-name" type="text" name="properties[_Your name]">
</p>
// Following code will display optional field in product page
<p class="line-item-property__field">
<label for="your-name">Your name</label>
<input id="your-name" type="text" name="properties[_Your name]">
</p>
