This thread is resolved. Here is a description of the problem and solution.
Problem:
You are unable to find the option to use DeepL as a translation service for the Spanish (Mexico) language variant.
Solution:
We recommend verifying the list of supported languages by DeepL and other translation engines here. For Mexican Spanish, you should use WPML’s Professional Translation Cloud (PTC), which is the default engine for WPML Automatic Translation and supports dialect-specific language variants, including Spanish (Mexico). Ensure that Automatic Translation is enabled and that WPML is set to use the PTC engine.
If you need to translate content, you can either use the Advanced Translation Editor by clicking the plus icon or send the page for automatic translation via WPML → Translation Dashboard. Select the page, choose the target language, and send it for automatic translation.
If this solution does not apply to your case, or if it seems outdated, we highly recommend checking related known issues, verifying the version of the permanent fix, and confirming that you have installed the latest versions of themes and plugins. Should you need further assistance, please open a new support ticket.
This is the technical support forum for WPML - the multilingual WordPress plugin.
Everyone can read, but only WPML clients can post here. WPML team is replying on the forum 6 days per week, 22 hours per day.