Problem: The client's website is hosted on a single instance but is accessible via multiple domains. They need a licensing system where a single license key can be registered to work across all domains. Currently, their licensing system generates a unique license key for each domain, which is problematic as the single website instance cannot accommodate multiple license keys. Solution: If you're experiencing this issue, we recommend understanding that WPML does not use a single license key for all domains; you need a unique site key for each website. These keys are generated from your account on https://wpml.org/account/sites. If you are using a Multisite setup, registering the main site with a key will make that key apply to all subsites. However, for separate, distinct websites, you must generate a separate key for each one. For more details on a multisite setup, please see https://wpml.org/documentation/support/multisite-support/.
This solution might be irrelevant if it’s outdated or not applicable to your case. 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 this does not resolve your issue, please open a new support ticket at WPML support forum.
