Problem: The client is experiencing issues with over 100,000 WooCommerce products not being indexed by Google due to URL redirection caused by untranslated category slugs in the product permalinks. Solution: We recommend translating WooCommerce taxonomies such as product categories, tags, and attributes through WooCommerce -> WooCommerce Multilingual & Multicurrency. For detailed guidance, please refer to our documentation on translating taxonomies: Translating WooCommerce Taxonomies. If you need to translate all the product categories in bulk, please follow the instructions in our guide: How to Translate All Taxonomy Terms at Once.
If this solution does not apply to your case, or if it seems outdated, we highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have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. Should you need further assistance, please do not hesitate to open a new support ticket or visit our support forum.