Problem: The client is experiencing issues with their multilingual product catalog not functioning correctly after catalog synchronization. Specifically, when switching the language to French, Turkish, or Spanish, the product catalog redirects to a 'page not found' error. Solution: We recommend checking the configuration settings for each language in the WPML settings. Ensure that the URL format and language switcher options are correctly set up. It's also important to verify that all translations are published and synchronized correctly across all languages. If these settings are correct and the issue persists, we suggest clearing any cache on the website and re-saving the permalinks settings by going to Settings > Permalinks in the WordPress dashboard and simply clicking 'Save Changes'.
If this solution does not resolve the issue or seems outdated, or if it does not apply to your case, please visit our known issues page at https://wpml.org/known-issues/ to check for related issues. We also recommend confirming that you have installed the latest versions of themes and plugins. If the problem continues, do not hesitate to open a new support ticket with us for further assistance at WPML support forum.
