[Resolved] WooCommerce Order on-hold email strings have mixed languages

Problem:
The client is developing a site using WPML with WooCommerce in English and German. While most parts of the WooCommerce emails translate correctly, specific sections like bank details and order information in the on-hold email remain in English.
Solution:
First, ensure you are using the latest version of the WooCommerce plugin. Follow the documentation on translating WooCommerce emails here: https://wpml.org/documentation/related-projects/woocommerce-multilingual/how-to-translate-woocommerce-emails/
If the issue persists, add the following code to the

functions.php

file in your theme folder:

add_filter('woocommerce_email_heading_customer_on_hold_order', 'load_woocommerce_textdomain', 5, 2);

function load_woocommerce_textdomain($heading, $email) {
load_plugin_textdomain('woocommerce', false, plugin_basename(dirname(__FILE__)) . '/languages/');
return $heading;
}

Please ensure to back up your database and website before making changes.

If this solution does not resolve the issue or seems outdated, we recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have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 problems persist, please open a new support ticket with us for further assistance.