Trieles

Hello, I finally discovered that the problem was the field name, since the plugin shows it in the backend with a name but in the wordpress data table it is added with an underscore at the beginning. So I never called the field correctly. The field was not named ‘billing_wooccm11’ but ‘_billing_wooccm11’.
I leave the clarification here to help other possible users who face the same problem. And I copy the function that works correctly:

add_action( 'wpo_wcpdf_after_billing_address', 'wpo_wcpdf_my_custom_field', 10, 2 );
function wpo_wcpdf_my_custom_field ($template_type, $order) {
if ($template_type == 'invoice') {
?>
<div class="billing-item">CUIT: <?php echo $order->get_meta('_billing_wooccm12'); ?></div> 
<div class="billing-item"><?php echo $order-> get_meta('_billing_wooccm13'); ?></div>
<div class="billing-item">Celular: <?php echo $order->get_meta('_billing_wooccm11'); ?></div>
<?php
}
}

Thank you very much for trying to solve the problem very quickly and willingly. Regards

Currently I am not receiving an error but rather the fields are not displayed on the invoice.
It only gave me an error when I changed the echo location before the get meta.

Hello, changing the echo location gave me a WordPress error. Any other possible solution. Thank you very much for your quick response and willingness!

I would like to remove all traces of Bulkpress in the database. Since before installing it, my imports of products with their respective categories, were created correctly. Now, despite having uninstalled Bulkpress, the product imports take the categories that were created with Bulkpress. Despite the fact that in my import csv, nothing changed. It’s like Bulkpress overwritten taxonomies, despite having uninstalled it.

Hello, thank you for your quick response. in which tables does it store the information? I could read the names of the taxonomies in the table, the problem is the relationships between taxonomies .. I honestly prefer not to touch the database but my second option at the moment is to delete all my work and do everything from scratch, the truth is a long time with this and it’s a terrible setback. I don’t know how to see the hierarchical relationship to erase. I am working with an import plugin and when you create all the products you create the taxonomies and you already create them wrong.

Hello, actually, before writing to this forum, I noticed that what you say is fine: Dashboard> WooCommerce> Settings> Products tab> the Shop page isr “Products”. And that page has a [products] shortcode on it. This is why I wrote, apparently everything is well configured, but it is not shown anyway …