Raghu

<p>Added GTIN number to inventory tabs of woo product.</p>
<ul>
<li>UPC: this is the primary GTIN in North America.</li>
<li>EAN/UCC: the major GTIN used outside of North America</li>
<li>JAN: the Japanese GTIN</li>
<li>ISBN: a GTIN for books</li>
</ul>
<p>It’s very simple.</p>
<h4>Main features of Product GTIN (EAN, UPC, ISBN) for WooCommerce:</h4>
<ul>
<li>Option to show GTIN code in WooCommerce shop page.</li>
<li>Option to show GTIN code in WooCommerce product detail page.</li>
<li>Option to show GTIN code in WooCommerce cart page.</li>
<li>Option to show GTIN code in WooCommerce checkout page.</li>
<li>Option to show GTIN code in WooCommerce Order Items.</li>
<li>Option to choose the position of GTIN code inside the single product page</li>
<li>Option to add new GTIN tab in product details page</li>
</ul>
<h4>Add new code in GTIM schema:</h4>
<pre><code>add_filter('gtin_schema_data_structure_options', 'add_extra_gtin_code');
 function add_extra_gtin_code($codes){
    $codes['volume'] = "Volume";
    return $codes;
 }
</code></pre>
<p>This function paste in your functions.php file</p>


GTIN Schema for WooCommerce

Great Plugin

Add GTIN number to inventory tabs of woocommerce product.

Sebas2

<blockquote>
<p>Easily add a custom field to your woocommerce products this plugin wil do just that.</p>
</blockquote>
<h4>Overview</h4>
<p>Adding a custom EAN field to your woocommerce products, will help you create your Google Merchant feed. This plugin will not create the feed for you, but the custom field is mandatory.<br />
There is no admin/settings screen.</p>
<h4>Installation Instructions</h4>
<ol>
<li>Upload <code>s2 Woocommerce EAN</code> folder to the <code>/wp-content/plugins/</code> directory</li>
<li>Activate the plugin through the ‘Plugins’ menu in WordPress</li>
</ol>


s2 Woocommerce EAN

WordPress plugin to be used with Woocommerce this will add an extra custom field to your products with ease.

GTIN Schema for WooCommerce vs s2 Woocommerce EAN