The client was unable to see cross-sell products in other languages on their WooCommerce site after updating WPML. The products were set up in the default language (English) and were not being copied to translated versions.

We recommend the following steps to resolve the issue: 1. Navigate to WPML → Settings → Custom Fields Translation. Click on Show system fields. Set <code>_upsell_ids</code> and <code>_crosssell_ids</code> to Copy or Copy once and then save. If already set, change it to translate and then back to copy. 2. Ensure that every product referenced as a cross-sell/upsell is translated and linked. Check that the translation is 100% complete using the pencil icon. Update the original product and its translations to trigger WPML synchronization. 3. Go to WooCommerce → WPML Multilingual & Multicurrency → Settings → Troubleshooting and run the following:<ul><li>Synchronize data into translations</li><li>Fix language connections</li><li>Delete obsolete custom fields from translations</li></ul> 4. Clear any caches (e.g., Redis, Memcached) and repeat the update step on the original product and its translations. 5. If the issue persists, test for plugin or theme conflicts. Disable all plugins except for WooCommerce and WPML, switch to a default theme like Twenty Twenty-five, and check if the issue resolves. If resolved, reactivate each item one by one to identify the conflict. If these steps do not resolve your issue, or if the solution seems outdated or irrelevant to your case, we highly recommend checking related known issues at <a href=\'https://wpml.org/known-issues/\'>https://wpml.org/known-issues/</a>, 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 at <a href=\'https://wpml.org/forums/forum/english-support/\'>WPML support forum</a>.

Cross-sells linked products not copied to translations (translated products)

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Last updated by andrazF 1 month, 1 week ago.

Assisted by: Otto.

Author	Posts
October 2, 2025 at 1:12 pm #17452176
andrazF	Background of the issue: I was trying to set a cross-sell product in the default site language (English) using the Product Editor -> Linked Products tab. After updating the WPML plugins, I noticed an issue. Symptoms: The cross-sell product is not copied to other languages (translated products). It is offered in the English cart but not shown in other languages. Before the updates, setting cross-sell offers worked normally, and old cross-sell offers still show normally. I just can't create new ones. Questions: Why are cross-sell products not being copied to translated products after the WPML update? How can I fix the issue of cross-sell products not appearing in other languages?
October 2, 2025 at 2:10 pm #17452389
Otto WPML Supporter since 09/2015 Languages: English (English ) Spanish (Español ) Timezone: America/Argentina/Buenos_Aires (GMT-03:00)	Hello, I tested the behavior in a fresh site and it worked as expected. Please try the following: 1. - Go to WPML → Settings → Custom Fields Translation. Click Show system fields. - Set _upsell_ids and _crosssell_ids to Copy (or Copy once) and Save. If it's already set this way, change it to translate and change it back to copy. - Ensure every product you reference as a cross-sell/upsell is translated and linked (pencil icon, 100% complete). If not, translate those products first. - Edit the original (English) product and click Update to trigger WPML sync; then open and Update its translations (ATE/CTE) so WPML refreshes meta. -Go to WooCommerce → WPML Multilingual & Multicurrency → Settings → Troubleshooting and run: Synchronize data into translations, Fix language connections, and Delete obsolete custom fields from translations. 2. - Purge any page/opcode/object caches (Redis, Memcached, Object Cache Pro, hosting cache), then repeat the Update step on the original + translations. Several sync issues (variations/metadata) have been resolved after clearing object cache and resaving. 3. Finally, I suggest you try this to help us identify if it might be a conflict with another plugin or theme that is causing the problem. IMPORTANT: Please try this in a staging environment or at least with a backup of your site files and database before continuing. Disable all plugins except WooCommerce and WPML-related and temporarily change the theme to a default WordPress such as Twenty Twenty-five. Is the issue resolved with these settings? If so, please reactivate one by one to see which conflicts. Best Regards, Otto
October 2, 2025 at 3:26 pm #17452534
andrazF	Hello, _upsell_ids and _crosssell_ids were set to "Translate". Changing them to "Copy" resolved the issue. Thank you and best regards.