Emanuela Castorina

Hello,
I made a test just now and the code is save inside the order item as well.

screenshot

Hello there,
I’m sorry for this. I released a new version with the fix.

Please update the plugin to the last version (1.0.6)
I integrated the plugin with the WooCommerce Export Products CVS tool.
Now you can find the GTIN code inside the list of fields to export.

Here some screenshots:

Screenshot 1

Screenshot 2

Please update the plugin to the last version (1.0.6)
I integrated the plugin with the WooCommerce Export Products CVS tool.
Now you can find the GTIN code inside the list of fields to export.

Here some screenshots:

Screenshot 1

Screenshot 2

Hello!
Inside the version 1.0.6 you can find this feature.
On setting page you can choose the property name to add to the structured data.
These are the options:

• gtin
• gtin8
• gtin12
• gtin13
• gtin14
• isbn
• mpn

Thanks to @stroykamarketcom for the snippet

Please, update the plugin to the version 1.0.6.

Inside the product page editor > Inventory, you can now override the general code label.

Please, update the plugin, there’s a new version with the support for WooCommerce 3.9

Hello,
I’ve made a test with my installation and the product appear using the default WordPress Search widget and with the Product Search Widget of WooCommerce.

Are you using one of those widgets or another external plugin?

Hello,
in the next version I’ll add another field inside the editor of product to override the general setting code label.
So if your main code label is ISBN, for specific products you can set a different label, in your case EAN.

Hello,
the plugin works with WooCommerce 3.8
A new version will be released soon with the support for WooCommerce 3.9

You are welcome!
If you have the possibility to update the single product template in your theme
you can use this php code

<?php echo do_shortcode('[wpm_product_gtin]'); ?>

I suggest to give a margin to the code, so it will displayed like the categories

span.hwp-gtin span{
    margin-left:90px;
}

Hello,
I’m sorry but the booking product type is not supported.

You can try this:

span.hwp-gtin{
  font-weight:700;
}

span.hwp-gtin span{
  font-weight:400;
}

Hello the code is displayed on my installation.
It is possible that your theme overrides some woocommerce template or removes some action like this

woocommerce_product_meta_start

you can also use the shortcode

[wpm_product_gtin]

you can find more information inside the landing page of plugin:
Product GTIN (EAN, UPC, ISBN) for WooCommerce