Problem: The client has migrated their website from a staging URL to a live URL and now has both the development and live sites registered in their WPML account. They are unsure whether to delete the old site from the WPML account and how to manage the site keys post-migration. Solution: If you're experiencing a similar situation, we recommend that you first unregister WPML from your old site key. You can do this by logging into your WPML account, navigating to the Sites page (https://wpml.org/account/sites/), and removing both the old and development site keys. After this, generate a new key for your current production/live domain and mark it as "production." This new key should then be added back to your site under Plugins > Add new > Commercial. Remember, you might need to unregister WPML first from the old key and then reregister WPML with the new key.
If this solution does not resolve your issue or seems irrelevant due to updates or differences in your case, please 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. We highly recommend opening a new support ticket if further assistance is needed. You can do so at WPML support forum.
