Problem: The client is setting up a multidomain page using WPML and wants different domains for different English locales (en-US, en-IE, en-GB). However, they encounter an issue where they cannot add a custom language with the locale en_US, as it reports 'The Language name already exists.' Solution: If you're experiencing this issue, we recommend the following steps to resolve it: 1. Activate the pre-configured language: Go to WPML → Languages and activate English. 2. Change its locale: Edit the English language and change its locale to something else (e.g., en_EN or a custom value that fits your needs). 3. Save the changes. 4. Now add your custom language: Once the default locale en_US is free, you can create your custom language and assign en_US to it. For more detailed instructions on adding custom languages, please visit Adding Custom Languages.
Please note that this solution might be irrelevant if it's outdated or not applicable to your specific case.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 the issue persists, please open a new support ticket.
