WCML

Problem:
The client is facing an issue with duplicated WooCommerce attributes in different languages on a WPML-stabilized site. They want to consolidate these attributes without breaking products, filters, SEO, or using destructive SQL.
Solution:
We recommend checking if the duplicated attributes appear at Products > Attributes in the WooCommerce section. Here, WooCommerce should only display attributes created in the site’s default language, as this is the canonical source. Translations are managed through WPML’s Taxonomy Translation interface, not listed as separate attributes. It's important not to merge translated taxonomy slugs back into one, as this would disrupt language-specific filtering and URLs. Instead, ensure attributes are registered once in the default language and then translated via WPML’s taxonomy translation. This approach maintains functionality for products, filters, and SEO. If duplicate attributes in other languages appear as separate entries in the admin list (e.g., 'Destinos', 'Duración'), these might have been manually added and are not linked to the originals in WPML’s translation tables. In such cases, deleting these manual entries at Products > Attributes is advisable.

If this solution does not apply to your case, or if it seems outdated, we highly recommend opening a new support ticket. Also, check related known issues at https://wpml.org/known-issues/, verify the version of the permanent fix, and confirm that you have installed the latest versions of themes and plugins. For further assistance, please visit our support forum at WPML Support Forum.

Problem:
The client is experiencing inconsistencies between the Dutch and English WooCommerce pages, specifically with price and stock information. The Dutch version shows correct stock status and price, whereas the English version shows the product as available only on backorder and the price as 0, despite correct settings in the backend.
Solution:
We recommend the following steps to address the issue:
1. Increase the WordPress memory limit to at least 256MB by adding

define('WP_MEMORY_LIMIT', '256M');

to the wp-config.php file, just before the line that says /* That's all, stop editing! Happy publishing. */.
2. Synchronize product taxonomies by going to WPML → Support → Troubleshooting in the WordPress dashboard, selecting Products from the dropdown menu in the Cleanup section, and clicking the Synchronize Post Taxonomies button.
3. Update and complete product translations for all products using Elementor by going to WPML → Translation Dashboard, selecting all the WooCommerce products, and sending them for translation through the Advanced Translation Editor. Ensure all translation segments are 100% complete.
4. Adjust the custom field settings by going to WPML->Settings->Custom Fields Translation, clicking on show system fields, searching for the field _plus_meta_product_voorraad_details, and marking it as copy. Then, update the product in the default language and translations.
Documentation: Translating Custom Fields

If these steps do not resolve the issue or if the solution seems outdated or irrelevant to your case, we highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have installed the latest versions of themes and plugins. If the problem persists, please open a new support ticket.