Scott Bolinger

GTINs (Global Trade Item Numbers) including UPC, EAN, and ISBN are globally recognized unique identifiers for products.
They are required to list your product on Google and Amazon, this plugin allows you to add your GTIN and display it on your product page.
Supports:
<ul>
<li>Simple products</li>
<li>Variable products</li>
<li>Composite products</li>
<li>Product bundles</li>
</ul>
Features:
<ul>
<li>Add GTIN for main product</li>
<li>Add unique GTINs for product variations</li>
<li>Option to display GTIN on the single product page</li>
<li>Change GTIN to any other text</li>
<li>Add GTIN to structured product data</li>
<li>Works with product feeds like Google Shopping and more (requires a feed plugin)</li>
</ul>

WooCommerce UPC, EAN, and ISBN

Awesome plugin with great code

Add GTIN codes like UPC, EAN, and ISBN to your WooCommerce products.

Emanuela Castorina

Product GTIN (EAN, UPC, ISBN) for WooCommerce lets you set the GTIN (Global Trade Item Number) for each product of your shop. 
By default, WooCommerce allows to set the SKU custom field for a product, but sometimes the SKU isn’t enough. 
Google and Amazon use global trade item numbers (GTINs) to group identical products. 
The most common GTINs are:
<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>
Another type of Identification Number is the MPN (Manufacturer Part Number). This code is required for all products that do not have an assigned GTIN. 
These type of codes are important both for selling and for tracking your products.
<h4>Main features of Product GTIN (EAN, UPC, ISBN) for WooCommerce:</h4>
<ul>
<li>Assign a name to the code (EAN, UPC, ISBN, JAN, ITF-14)</li>
<li>Add a code for main products and for product variations.</li>
<li>Extend the WooCommerce Product Search by GTIN Code.</li>
<li>Add the GTIN code column inside the product list table.</li>
<li>Search by GTIN inside the product list table.</li>
<li>Option to show GTIN code in WooCommerce product detail page.</li>
<li>Option to show GTIN code in WooCommerce shop 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>Hide empty GTIN code in your WooCommerce shop.</li>
<li>Shortcode available to show GTIN code for a specific product.</li>
<li>Support for Schema.org/Product with an option to choose the property name to set inside the structured data</li>
<li>Option to choose the position of GTIN code inside the single product page</li>
<li>Integrated with the WooCommerce Export Products CVS tool</li>
<li>Integrated with the WooCommerce Import products from a CSV file tool</li>
<li>WooCommerce Rest API Product integration: GTIN code is passed inside the ‘ean_code’ field</li>
</ul>
<h3>Suggestions</h3>
If you have any suggestions concerning how to improve Product GTIN (EAN, UPC, ISBN) for WooCommerce, you can contact @emanuelacastorina on <a href="https://make.wordpress.org/chat/" rel="nofollow ugc">Slack</a>.

Product GTIN (EAN, UPC, ISBN) for WooCommerce

Great EAN plugin

The Product GTIN (EAN, UPC, ISBN) for WooCommerce plugin adds the Global Trade Item Number (EAN, UPC, ISBN, JAN, ITF-14) field to WooCommerce products …

WooCommerce UPC, EAN, and ISBN vs Product GTIN (EAN, UPC, ISBN) for WooCommerce