Title: GTIN issue
Last modified: June 1, 2026

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# GTIN issue

 *  Resolved [aitta10](https://wordpress.org/support/users/aitta10/)
 * (@aitta10)
 * [2 months ago](https://wordpress.org/support/topic/gtin-issue/)
 * Some of my products have GTINs and others are handmade and do not have GTINs.
   Showing in merchant center gets affected by GTINs, so how can I solve this in
   order for products in merchant center to show properly.
 * Please note that I use a third party plugin for GTINs, so when I tried to add
   GTIN in the attributes and directing it to the third party plugin it did not 
   work and now in the errors tab all my products have gtin issue.
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fgtin-issue%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Plugin Support [shahzeen(woo-hc)](https://wordpress.org/support/users/shahzeenfarooq/)
 * (@shahzeenfarooq)
 * [2 months ago](https://wordpress.org/support/topic/gtin-issue/#post-18925158)
 * Hi there!
 * Thank you for explaining the issue. I understand the challenge you’re facing 
   when some of your products have GTINs while others are handmade and do not, especially
   when this is affecting your product listings in Google Merchant Center.
 * If some of your products are handmade and do not have manufacturer-assigned GTINs,
   then you do not need to add GTIN values for those products. In fact, entering
   incorrect GTINs can lead to additional issues in Google Merchant Center.
 * For custom or handmade products that do not have product identifiers, we recommend
   the following:
    - **GTIN** – Leave this field blank.
    - **MPN** – Use the product SKU from WooCommerce.
    - **Brand** – Enter your domain name (without `https://` or `www`).
 * Providing the MPN and Brand values when no GTIN exists helps Google understand
   that the product does not have a GTIN and can prevent those products from being
   flagged for missing identifiers.
 * You can assign these values to multiple products at once using the Google for
   WooCommerce attribute mapping feature.
 * For products that do have GTINs, we recommend adding them using the default WooCommerce
   GTIN field available on the product edit page. This ensures compatibility with
   Google for WooCommerce and allows the plugin to correctly sync the identifier
   data to Google Merchant Center.
 * If you prefer to use a third-party GTIN plugin, we recommend contacting the plugin’s
   support team to confirm whether their plugin is compatible with Google for WooCommerce
   and whether it is correctly assigning and exposing GTIN values in a way that 
   Google for WooCommerce can recognize and sync.
 * I hope this helps.
 *  Thread Starter [aitta10](https://wordpress.org/support/users/aitta10/)
 * (@aitta10)
 * [2 months ago](https://wordpress.org/support/topic/gtin-issue/#post-18925329)
 * Hi,
 * Thank you for the reply.
 * I did what you said, please check this screenshot and let me know if that is 
   correct:
 * [https://snipboard.io/2t3GDM.jpg](https://snipboard.io/2t3GDM.jpg)
 *  [Frank Remmy](https://wordpress.org/support/users/frankremmy/)
 * (@frankremmy)
 * [2 months ago](https://wordpress.org/support/topic/gtin-issue/#post-18925341)
 * Hi [@aitta10](https://wordpress.org/support/users/aitta10/),
 * That looks correct! Your attribute mapping has MPN mapped to `product:sku` and
   Brand set to your domain name. That’s exactly what was recommended for products
   without GTINs, so you’re on the right track.
 * The “Scheduled for sync” status means the updated attribute data is queued and
   will be sent to GMC on the next sync cycle. Once that completes, Google should
   have the MPN and Brand values for your handmade products and the identifier warnings
   should start to clear, though it can take up to a few days for Merchant Center
   to re-evaluate and update the status.
 * For your products that do have GTINs, make sure those are entered directly on
   each product’s edit page using the WooCommerce GTIN field (rather than through
   the attribute mapping) so they sync correctly. Keep an eye on your Merchant Center
   errors tab over the next couple of days and let us know if the GTIN issues persist
   after the sync completes.
 * Hope that helps.

Viewing 3 replies - 1 through 3 (of 3 total)

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 * 3 replies
 * 3 participants
 * Last reply from: [Frank Remmy](https://wordpress.org/support/users/frankremmy/)
 * Last activity: [2 months ago](https://wordpress.org/support/topic/gtin-issue/#post-18925341)
 * Status: resolved