Thank goodness 🙂 – a feature that automatically generates SKUs for you! Simply enable WooCommerce SKU module, and every new product added to your store will be allocated a unique SKU number.

Have existing products that don’t have SKUs? This module can do that for you too! Once enabled, go to WooCommerce > Booster > Products > SKU and scroll down to the Autogenerate SKUs tool, or go to WooCommerce > Booster Tools > Autogenerate SKUs to automatically generate SKUs for all existing products in your store. It’s that easy!

SKU Format Options

This section allows you set SKU format.

Booster for WooCommerce - WooCommerce SKU - Admin Options - SKU Format Options Section

Number Generation
Number generation method. Possible values: from product ID, sequential or pseudorandom.
Default: From product ID
Sequential Number Generation - Counter
If you choose to use sequential number inside SKU, you can set current sequential number counter here.
Default: 1
Sequential Number Generation - By Category
Enables sequential number generation by category.
Default: no
SKU prefix.
Default: None
Minimum Number Length
Minimum length for SKU number part.
Default: 0
SKU suffix.
Default: None
SKU template. Replaced values: {category_prefix}, {category_suffix}, {prefix}, {suffix}, {variation_suffix}, {sku_number}
Default: {category_prefix}{prefix}{sku_number}{suffix}{category_suffix}{variation_suffix}
Variable Products Variations
Default: SKU same as parent's product

Categories Options

You can set different SKU prefix, suffix and counter (in case if “Sequential Number Generation – By Category” option is enabled) for each your product category.

WooCommerce SKU - Admin Settings - Categories Options

More Options

Booster for WooCommerce - WooCommerce SKU - Admin Options - More Options Section

Automatically Generate SKU for New Products
Alternatively you can use Autogenerate SKUs tool.
Default: yes
Generate SKU for New Products Only on First Publish
This is important if, for example, you are using category prefix and don't want SKU generated too early, before you set the category.
Default: no
Allow Duplicate SKUs
If you wish to set SKUs manually, and you need to have same SKUs for different products, you can enable allow duplicate SKUs option here (which is disabled in WooCommerce by default).
Default: no
Search by SKU
Add product searching by SKU on frontend.
Default: no
Generate SKUs Only for Products with Empty SKU
This may help if you are going to use Autogenerate SKUs tool, but don't want to change your existing SKUs.
Default: no
Add SKU to Customer Emails
Adds product SKU to customer's emails.
Default: no
Disable SKUs
Enable this option if you are not going to use SKUs in your shop at all.
Default: no

Autogenerate SKUs Tool

Module will generate SKUs for new added products automatically, but if you need to set SKUs for your existing products, or if you changed SKU format and would like to recalculate SKUs, you need to use Autogenerate SKUs tool. It will take format settings you set in previous sections, so you only need to click preview and set SKUs.

Booster for WooCommerce - WooCommerce SKU - Autogenerate SKUs Tool

Accessible through:
  • WooCommerce > Settings > Booster > Products > SKU
Tested on WooCommerce 5.8.0 and WordPress 5.8.2