maartenv-15

Problem:
The client is experiencing an issue where the "Products" filter in the Smart Coupons settings is not being applied in a second language.
Solution:
If you're encountering this issue, we recommend you take the following steps:
1. Please make a full website backup.
2. Completely remove any Coupon Translation you have (change the language in the top bar, move the translation to the trash, and then permanently delete them).
3. Go to WPML > Settings and set "shop_coupon" as not translatable.
4. In your functions.php file, add the following code at the end:

add_filter('woocommerce_coupon_get_wc_sc_add_product_details', 'testing_coupon_discount_after_adding_to_cart');
function testing_coupon_discount_after_adding_to_cart($var) {
    foreach ($var as $key => $prod ) {
    $my_current_lang = apply_filters( 'wpml_current_language', NULL );
        $type = get_post_type($prod["product_id"]);
        $translations = apply_filters( 'wpml_get_element_translations', NULL, $prod["product_id"], 'post_'. $type );
    $var[$key]["product_id"] = $translations[$my_current_lang]->element_id;<br />    }
    return $var;
}

5. Save the changes.
This should make the coupon work in both languages. It's not necessary to translate the coupon; just create it in the default language.

Please note that this solution might be irrelevant if it's outdated or not applicable to your case.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 the issue persists, please open a new support ticket.