Merchlint – Duplicate SKU and GTIN Finder for WooCommerce
| 开发者 | baltano |
|---|---|
| 更新时间 | 2026年10月28日 04:01 |
| PHP版本: | 7.4 及以上 |
| WordPress版本: | 7.1 |
| 版权: | GPL-2.0-or-later |
| 版权网址: | 版权信息 |
详情介绍:
- 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.
安装:
- Install and activate.
- Open Products → Duplicate SKU and GTIN Finder, or click Find duplicates next to the plugin on the Plugins screen.
- Press Scan now.
wp merchlint-duplicate-sku-finder scan.屏幕截图:
常见问题:
How do I find duplicate SKUs in WooCommerce?
Install this plugin, open Products → Duplicate SKU and GTIN Finder and press Scan now. Every product that shares its SKU with another one is listed with the SKU that was read and an Edit link, and Download CSV gives you the same list as a file. It compares published products and their variations; translations of one product are not counted as duplicates. WooCommerce itself refuses a repeated SKU when you save a product, but it has no screen that lists the pairs already in your catalogue. Those got in another way - for example through a tool that writes to the database directly.
What does "Invalid or duplicated SKU" mean?
WooCommerce shows this message when you save a product with an SKU that another product or variation already has. A draft or a private product holds its SKU too; only a product in the Trash does not. In the classic product editor your other changes are saved, and the SKU keeps its previous value. This plugin adds one line under that message with the product that holds the code and an Edit link. For codes from elsewhere, for example the product import log, open Products → Duplicate SKU and GTIN Finder and paste them under Who has this code?. It also finds what the product search does not show: a variation whose product no longer exists, a placeholder left by an import that did not finish, and an out-of-date row in the WooCommerce product lookup table. The line does not appear in quick edit, where WooCommerce drops a taken SKU without any message, or in the block product editor. The identifier field has its own version of the message, "Invalid or duplicated GTIN, UPC, EAN or ISBN." (WooCommerce 9.2 and later), and it works the same way. Since WooCommerce 11.2 the product CSV importer, with Update existing products ticked, also finds products by their GTIN. A row whose GTIN two products share fails with this message, and neither product changes; the importer does not say which product holds the other copy. Who has this code? shows both.
How do I find WooCommerce products without a GTIN?
Since WooCommerce 9.2 every product has a field for a GTIN, UPC, EAN or ISBN. Since 10.4 the list under Products → All Products also has a column for it, hidden by default: turn it on in Screen Options and sort by it, and products with no number come first. Variations are not in that list: for a variable product the column shows the product's own number, not the numbers of its variations. This plugin lists the products with no number, variations included: each with an Edit link, and a variable product once, with the number of its variations that have no code.
How do I check if a GTIN or EAN is valid?
This plugin does not check the number itself. It finds products with no GTIN and GTINs used by more than one product. To check the check digit, the length and the format of a whole list of codes, use the free GTIN validator on our website: paste a column of codes or pick a product export file (CSV, TXT or XLSX). It runs in your browser, and the file is not sent anywhere. A well-formed number is not yet proof that it belongs to the product. Only the GS1 registry shows whether the manufacturer registered it.
Does it change anything in my shop?
No. It reads the catalogue and writes nothing back. It keeps a few things of its own: the last result, so that reloading the page does not require another scan, and notes in your user profile, so that the notice on the Plugins screen, the review request and the note about Merchlint under the results do not come back once you have dealt with them. Deleting the plugin removes all of them. The line about a refused SKU goes into the WooCommerce message itself, which WooCommerce keeps only until the next page shows it.
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.
Can an AI assistant read the results?
Only if you connect one yourself. On WordPress 6.9 or later the plugin registers two read-only
abilities through the WordPress Abilities API: the summary of the last scan and the list of its
findings. An AI assistant you connect to your store, for example through an MCP plugin, can call
them as a logged-in user with the manage_woocommerce permission, and gets the same results as
the plugin screen. The plugin itself sends nothing anywhere and changes nothing in your shop.
更新日志:
- When WooCommerce refuses an SKU or GTIN while you save a product or a variation, a line under its message now says which product or variation already has the code, with an Edit link. When WooCommerce refuses both at once, its message mentions only the SKU; the line covers both.
- Who has this code? on the plugin screen: paste one or more SKUs or GTINs, for example from the product import log, and see every product that has them - published products, drafts, private products, variations, a variation whose product no longer exists, a placeholder left by an import that did not finish, and products in the Trash, which do not hold the code. When the WooCommerce product lookup table is out of date, the list says so and points to the tool that fixes it.
- Codes are compared the way WooCommerce compares them, in the database, so a code that differs only in letter case counts as the same code, as it does for WooCommerce.
- The screen has moved from Tools to Products → Duplicate SKU and GTIN Finder. The old address under Tools still opens it.
- The plugin row on the Plugins screen has a Find duplicates link. After activation, one notice on that screen says where the plugin is; it goes away for good once you dismiss it or open the screen.
- A link to the support forum at the bottom of the screen.
- A line under the title now says where these three checks come from: Merchlint, a free audit of the whole catalogue from the same author. Below the results, a short note lists what else it checks, with a button that opens the standard WordPress plugin details window - nothing is installed until you press Install Now there. "Don’t show again" hides the note for your user only; deleting the plugin removes that setting too. When Merchlint is already active, the note does not appear and the line links to its screen. The links carry no tracking parameters. Older releases: changelog.txt in the plugin folder.