---
title: Why Product Variations Lose Their EAN or Share the Same EAN
description: If a product variation loses its EAN or all variations share the same EAN, set the EAN on each variation individually, because a code on the parent product does not automatically pass to variations. For CSV or bulk imports, map…
url: "https://wpfactory.com/docs/ean-missing-or-duplicated-for-variations/"
updated: "2026-09-26"
category: Troubleshooting
tags:
  - EAN and Barcodes for WooCommerce
---

# Why Product Variations Lose Their EAN or Share the Same EAN

If a product variation loses its EAN or all variations share the same EAN, set the EAN on each variation individually, because a code on the parent product does not automatically pass to variations. For CSV or bulk imports, map the correct meta key (default _alg_ean). If codes still disappear, update the plugin and test for conflicts.

## **Problem Description**

Some users report that after assigning EAN/GTIN codes to products, particularly variable products or their variations, the EAN either does not save, disappears after saving, or all variations end up sharing the same EAN.

## **Common symptoms:**

- On product edit (backend), after saving, the EAN field becomes blank.[WordPress.org+1](https://wordpress.org/support/plugin/ean-for-woocommerce/)
- All variations show the **same** EAN, despite expecting unique per variation.[WordPress.org](https://wordpress.org/support/plugin/ean-for-woocommerce/)
- On product listing or feed/export, variation EANs are missing or incorrect.[WordPress.org](https://wordpress.org/support/plugin/ean-for-woocommerce/page/2/)

## **Cause:**

- The plugin’s storage logic for variable products may require that EAN be set individually per variation rather than on parent product. If user tries to set EAN at parent-product level only, variations may not inherit correctly.
- For bulk or import workflows (e.g. using CSV, WP All Import), if meta key or attribute mapping is misconfigured, EAN values may fail to save.
- Some product/variation setups or third‑party plugins may interfere with saving post meta for variations.

## **Solution:**

1. When working with variable products: never assume EAN set at parent product will automatically propagate, edit each variation and set EAN individually.
2. If using bulk import/export or CSV import plugins (e.g. WP All Import), ensure you map the correct meta key (default is _alg_ean) to the EAN column.[WordPress.org+1](https://wordpress.org/support/topic/ean-not-show-on-wp-all-import-settings/)
3. After saving variations, check in database or on product front/back end to confirm EAN is persisted.
4. If EAN disappears or resets: temporarily disable other plugins affecting product save or meta (especially custom fields, variation management, bulk editors) and test for conflicts.
5. Update plugin to latest version (as plugin gets bugfixes; recent changelog shows many fixes for variation and meta handling).[WordPress.org+1](https://wordpress.org/plugins/ean-for-woocommerce/)

## **Prerequisites:**

- WordPress + WooCommerce installation.
- Latest version of EAN Barcode Generator (checks up to latest WC).[WordPress.org](https://wordpress.org/plugins/ean-for-woocommerce/)

## **Additional Notes:**

- When managing many variations, consider using plugin’s bulk‑assign tools carefully, test on a small batch first.
  Keep backup before bulk updates.

Related articles

- [Import and Export Product EANs with the WooCommerce CSV Tools](https://wpfactory.com/docs/import-export-product-eans/)
- [Add EAN to Product Structured Data (GTIN for Google)](https://wpfactory.com/docs/ean-structured-data-gtin/)
- [How to Generate EANs for All Products](https://wpfactory.com/docs/ean-generate-tool/)
- [Bulk EAN Management with the Product Tools](https://wpfactory.com/docs/woocommerce-ean-toolkit/)
- [Automate EANs with Product Actions and Bulk Actions](https://wpfactory.com/docs/ean-product-actions/)

 

[![EAN, UPC, ISBN Generator: Product Barcode Inventory for WooCommerce](https://wpfactory.com/wp-content/uploads/EAN-for-WooCommerce.webp)](https://wpfactory.com/item/ean-barcodes-woocommerce/)