Problem: The client reported an issue where multiple URLs for a single translated post were all active and returning a 200 status code, which could potentially harm SEO. Solution: We recommended the client to first switch their site to a default WordPress theme like TwentyTwenty-Four and deactivate all plugins except WPML and its add-ons to check if the issue persists. If the problem still occurs, the next step is to deactivate all plugins except WPML and then reactivate them one by one to identify the problematic plugin. It's crucial to make a full site backup before proceeding with these steps. If the site is live, these procedures should be tried in a staging environment. Additionally, we adjusted a setting in WPML -> Settings -> 'Make themes work multilingual' by disabling the 'Adjust IDs for multilingual functionality' option, which resolved the issue of links returning a 200 status.
If this solution does not apply to your case, or if it seems outdated, we highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have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. If the issue persists, please open a new support ticket at WPML support forum.
