Logothetis

Problem:
You are unable to save translations on your homepage and Advanced Custom Fields using WPML after reaching 100% and clicking 'Complete'. The translation does not save, and the '+' icon reappears.
Solution:
We recommend following these steps to resolve the issue:
1. Create a full backup of your site.
2. Update all outdated plugins, themes, and the WordPress core. Update the WPML plugins by navigating to Plugins -> Add new -> Commercial tab -> Click on the button to get new updates.
3. Flush any cache memory that might exist.
4. Insert the following code into the functions.php file within your theme's folder:

function wpmlsupp_1891_fix_missing_icl_tables() {
    if( function_exists( 'icl_sitepress_activate' ) )
        icl_sitepress_activate();
}
add_action( 'wp_footer', 'wpmlsupp_1891_fix_missing_icl_tables' );

5. Visit the page in the frontend.
6. Remove the code from the functions.php file.
7. Check if the issue is resolved.

If this solution does not apply to your case, or if it seems outdated, we highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have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 problem persists, please open a new support ticket at WPML support forum.

Problem:
The client needed to update a custom field (barcode) for a large number of WooCommerce products that were already translated from Greek to Bulgarian. The client wanted to know if changing the translation preference from 'Translate' to 'Copy' would automatically update the already translated Bulgarian products with the new barcode values.

Solution:
We first asked the client to confirm if the barcode field should have the same value in both Greek and Bulgarian products. If so, we instructed to go to WPML > Settings > Custom field translations and change the translation preference for the 'barcode' field from 'Translate' to 'Copy'.
However, we also clarified that WPML does not have a native feature to automatically update the custom fields for already translated products. We suggested that the client could use the Bulk Update option by selecting all products in the source language from the admin listing, using bulk edit, and then 'Update' without making any changes. This action should trigger WPML filters to synchronize custom fields from the source to the target language.
We provided a reference to a forum topic for further assistance: https://wpml.org/forums/topic/need-to-synchronize-the-custom-field-of-an-attribute-wc/

If you still need assistance, please open a new support ticket: https://wpml.org/forums/forum/english-support/