Title: Merchlint – Duplicate SKU and GTIN Finder for WooCommerce Author: baltano Published: September 27, 2026 Last modified: September 27, 2026 --- Search plugins ![](https://ps.w.org/merchlint-duplicate-sku-finder/assets/banner-772x250.png?rev =3715298) ![](https://ps.w.org/merchlint-duplicate-sku-finder/assets/icon.svg?rev=3715298) # Merchlint – Duplicate SKU and GTIN Finder for WooCommerce By [baltano](https://profiles.wordpress.org/baltano/) [Download](https://downloads.wordpress.org/plugin/merchlint-duplicate-sku-finder.0.1.1.zip) * [Details](https://wordpress.org/plugins/merchlint-duplicate-sku-finder/#description) * [Reviews](https://wordpress.org/plugins/merchlint-duplicate-sku-finder/#reviews) * [Installation](https://wordpress.org/plugins/merchlint-duplicate-sku-finder/#installation) * [Development](https://wordpress.org/plugins/merchlint-duplicate-sku-finder/#developers) [Support](https://wordpress.org/support/plugin/merchlint-duplicate-sku-finder/) ## Description Two products with the same SKU throw off stock levels, integrations and every export file your store produces. Two products with the same GTIN tell a shopping service they are the same item, so one of them quietly disappears from search. A product with no identifier at all usually drops out of the feed altogether. None of this breaks your store, which is why it goes unnoticed for years. Nothing in the WooCommerce admin points at any of it. This plugin checks three things and nothing else: * **Two products share the same SKU.** Translations of one product are not counted as a duplicate — a multilingual store gives every translation the same code on purpose, and reporting that pair would be a false alarm. We read the translation groups of Polylang and WPML. * **Product with no GTIN, UPC, EAN or ISBN.** Stays quiet in shops that do not use identifiers at all: if not one product has the field filled, you get a single sentence saying so instead of a list of your entire catalogue. Handmade goods, services and your own production carry no manufacturer’s barcode and need none. * **Two products share the same identifier.** #### What it does not do It **never writes to your catalogue**. There is no “Fix it” button, and there will not be one: a bulk change to product data is not something a report should do on your behalf. Every finding shows the value that was read, so you can check the claim before you act on it. It reads no order data, which makes the scan far cheaper than a full audit. The scan still runs in a single request, so on a very large catalogue it can run into your host’s time limit — the screen says so when that becomes likely, and the WP- CLI command has no such limit. #### Evidence, not adjectives Every finding shows the field that was read and the value found, with a link straight to the product in your admin. A rule that could not run says so by name — on WooCommerce older than 9.2 the identifier field does not exist at all, and the report says that rather than reporting every product as faulty. #### Where the audit engine comes from The scanning engine is the one behind Merchlint, a full WooCommerce catalogue audit from the same author. This plugin carries its own copy with its own class names, so both can run side by side. ## Screenshots [⌊The results screen: each check with what it found, the value that was read, and a link to the product.⌉⌊The results screen: each check with what it found, the value that was read, and a link to the product.⌉[ The results screen: each check with what it found, the value that was read, and a link to the product. ## Installation 1. Install and activate. 2. Open **Tools Duplicate SKU and GTIN Finder**. 3. Press **Scan now**. For large catalogues there is a WP-CLI command: `wp merchlint-duplicate-sku-finder scan`. ## FAQ ### Does it change anything in my shop? No. It reads the catalogue and writes nothing back. The only thing it stores is the last result, so that reloading the page does not require another scan. ### My shop is multilingual. Will translations be reported as duplicates? No. Translations of one product share an SKU on purpose, and the check treats one translation group as one product. Polylang and WPML are both read. ### I do not use GTINs at all. Will I get a list of every product? No. If not one product in the catalogue has the field filled, the check stays quiet and tells you why, in one sentence. ## Reviews There are no reviews for this plugin. ## Contributors & Developers “Merchlint – Duplicate SKU and GTIN Finder for WooCommerce” is open source software. The following people have contributed to this plugin. Contributors * [ baltano ](https://profiles.wordpress.org/baltano/) “Merchlint – Duplicate SKU and GTIN Finder for WooCommerce” has been translated into 1 locale. Thank you to [the translators](https://translate.wordpress.org/projects/wp-plugins/merchlint-duplicate-sku-finder/contributors) for their contributions. [Translate “Merchlint – Duplicate SKU and GTIN Finder for WooCommerce” into your language.](https://translate.wordpress.org/projects/wp-plugins/merchlint-duplicate-sku-finder) ### Interested in development? [Browse the code](https://plugins.trac.wordpress.org/browser/merchlint-duplicate-sku-finder/), check out the [SVN repository](https://plugins.svn.wordpress.org/merchlint-duplicate-sku-finder/), or subscribe to the [development log](https://plugins.trac.wordpress.org/log/merchlint-duplicate-sku-finder/) by [RSS](https://plugins.trac.wordpress.org/log/merchlint-duplicate-sku-finder/?limit=100&mode=stop_on_copy&format=rss). ## Changelog #### 0.1.1 * Renamed on the request of the plugin directory review: the display name now leads with the Merchlint brand, and the slug and text domain are “merchlint-duplicate- sku-finder”. * One name for everything, so nothing is left half-renamed: the WP-CLI command is now wp merchlint-duplicate-sku-finder scan, the screen sits at Tools -> Duplicate SKU and GTIN Finder (tools.php?page=merchlint-duplicate-sku-finder) and the export is saved as merchlint-duplicate-sku-finder.csv. The checks, the findings and the columns of the CSV file are unchanged. * The name also says what the plugin actually looks at: duplicate SKUs and duplicate or missing product identifiers, not SKUs alone. * Accessibility: the table headers now carry `scope`, and each Edit link says which product it edits, so a screen reader no longer reads eight links called only“ Edit”. * Declared compatibility with the Cart and Checkout blocks, next to the existing High-Performance Order Storage declaration. The plugin adds nothing to the front end; without the declaration WooCommerce listed it among extensions of uncertain compatibility. #### 0.1.0 * First release. Duplicate SKU, missing GTIN and duplicate GTIN, with evidence on every finding, CSV export and a WP-CLI command. ## Meta * Version **0.1.1** * Last updated **2 days ago** * Active installations **Fewer than 10** * WordPress version ** 6.5 or higher ** * Tested up to **7.1.2** * PHP version ** 7.4 or higher ** * Languages * [English (US)](https://wordpress.org/plugins/merchlint-duplicate-sku-finder/) and [Polish](https://pl.wordpress.org/plugins/merchlint-duplicate-sku-finder/). * [Translate into your language](https://translate.wordpress.org/projects/wp-plugins/merchlint-duplicate-sku-finder) * Tags * [duplicate SKU](https://wordpress.org/plugins/tags/duplicate-sku/)[gtin](https://wordpress.org/plugins/tags/gtin/) [sku](https://wordpress.org/plugins/tags/sku/)[woocommerce](https://wordpress.org/plugins/tags/woocommerce/) * [Advanced View](https://wordpress.org/plugins/merchlint-duplicate-sku-finder/advanced/) ## Ratings No reviews have been submitted yet. [Your review](https://wordpress.org/support/plugin/merchlint-duplicate-sku-finder/reviews/#new-post) [See all reviews](https://wordpress.org/support/plugin/merchlint-duplicate-sku-finder/reviews/) ## Contributors * [ baltano ](https://profiles.wordpress.org/baltano/) ## Support Got something to say? Need help? [View support forum](https://wordpress.org/support/plugin/merchlint-duplicate-sku-finder/)