Yoast WPML Settings Conflict

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Supporter timezone: America/La_Paz (GMT-04:00)

Tagged: WCML

This topic contains 3 replies, has 0 voices.

Last updated by Claudio Palacios 3 weeks, 3 days ago.

Assisted by: Claudio Palacios.

Author	Posts
February 5, 2026 at 5:01 am #17794315
benjaminK-50	Plugins involved WPML Multilingual & Multicurrency for WooCommerce WPML Core Yoast SEO Problem summary We are seeing incorrect product category URLs generated only in the Yoast XML sitemap for translated (German) products. After investigation, this issue does not originate from Yoast SEO. The root cause appears to be within WPML Multilingual & Multicurrency for WooCommerce, specifically how category links are filtered when generating sitemap URLs. Technical findings The issue is caused by the function: translate_product_post_type_link_product_cat_when_display_as_translated() When this function runs during sitemap generation, it: Overrides the correct German primary category Uses the wpml_object_id filter Returns uncategorized as the primary category for German products This results in incorrect product URLs inside the Yoast product sitemap However: When the same function runs on the frontend, it behaves correctly The correct translated (German) primary category is returned The issue happens only in the sitemap context This strongly suggests a context-related issue in how WPML handles product category resolution when Yoast builds sitemap links. Expected behavior German products in the Yoast sitemap should use their correct translated primary product category The sitemap URLs should match what is output on the frontend Actual behavior German product sitemap URLs contain /product-category/uncategorized/ This happens even though the product has a valid translated category Frontend URLs are correct; only sitemap URLs are wrong Additional context / configuration This issue occurs when the following WPML setting is enabled: WPML → Settings → Post Type Translation Product is set to: “Translatable – use translation if available or fallback to default language” Changing this setting affects whether the issue occurs. Summary This is not a Yoast SEO bug The issue lies in WPML’s WooCommerce Multilingual handling of product category links Specifically, translate_product_post_type_link_product_cat_when_display_as_translated() behaves inconsistently between: Sitemap generation Frontend rendering We believe WPML should avoid overriding the primary category with uncategorized when generating sitemap URLs.
February 5, 2026 at 8:02 am #17794679
Long Nguyen WPML Supporter since 02/2022 Languages: English (English ) Vietnamese (Vietnamese ) Timezone: Asia/Ho_Chi_Minh (GMT+07:00)	Hi there, I’m Long from the WPML Development team, I’m happy to help you with this issue. I've tried to replicate the issue on my site but didn't see the same as you reported. What I have: - a product in English and a translation in French - a primary category in English and a translation in French - a primary category in English and no translation in French If the translation product has a different primary category, it still shows in the Yoast sitemap as well. Please check the attached screenshot. Can you please share clear steps to replicate the issue? Or share the temporary access (wp-admin and FTP) to your site so I can take a better look at the issue. It would be better to have a testing site where the issue is replicated. Your next reply is set to private to share the info. ❌ IMPORTANT: Please backup your database and website before proceeding ❌ You can use this plugin to create the backup: https://wordpress.org/plugins/duplicator/ Looking forward to your reply. Thanks
February 10, 2026 at 5:58 am #17807248
benjaminK-50	Hi Long, The steps are the same as i've written in the support ticket. Language: French Settings - for Product Fallback to original language. What happens is the slug of the product is being shown in the original language. I have confirmed this with the Yoast team too.
February 13, 2026 at 2:06 pm #17820953
Claudio Palacios Supporter Languages: English (English ) Timezone: America/La_Paz (GMT-04:00)	Hi, Thank you for the clarification. As I’ll be continuing the investigation from our side, I’d like to check the behavior directly on your installation to better understand why the product slug/category is resolving to the original language within the Yoast sitemap context. Could you please provide temporary administrator access to the site so I can investigate further? If possible, I would also appreciate: - Confirmation that we’re allowed to create a copy (via Duplicator) for testing purposes, so we don’t affect the live site. Your next reply is set to private, so you can safely share the credentials there. Once I have access, I’ll begin the investigation right away. Kind regards, Claudio

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