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Problem:
The client was experiencing two issues on the WooCommerce checkout page with WPML:
1) The product title on the order-pay endpoint page was not translating to the current page language but remained in the language the order was made in.
2) On the order-received page, the permalink slug for certain variable products with multiple attributes was in the wrong language.

Solution:
We recommended the following steps:
1) Go to WooCommerce > WooCommerce Multilingual > Status and complete any missing steps.
2) Navigate to WooCommerce > WooCommerce Multilingual > Store URLs and ensure that:
- Slugs are unique and not repeated across translations.
- Translations do not have the same slug as the original language.
If these steps are completed and the issue persists, we provided a code snippet to temporarily change the order language to English, retrieve the product information, and then revert the language back to the original. The client should add this snippet to their functions.php file. (fond here: https://wpml.org/forums/topic/woocommerce-product-title-etc-on-pay-order-checkout-page-in-wrong-language/page/2/#post-10513689 )

Please note that this solution might be outdated or not applicable to your case. If the issue persists, we highly recommend checking related known issues, verifying the version of the permanent fix, and confirming that you have installed the latest versions of themes and plugins. If necessary, please open a new support ticket with us."}