rawdogplugins

Auto SKU Generator takes the hassle out of creating SKUs for your WooCommerce products. Instead of manually typing a SKU for every product, this plugin automatically generates structured, unique SKUs based on your product’s category and ID.
<h4>How It Works</h4>
When you create or save a WooCommerce product without a SKU, Auto SKU Generator automatically assigns one using a consistent format:
[Prefix][Product ID][Suffix]
<ul>
<li>The prefix is derived from the product’s category ID (zero-padded to 3 digits) or a custom prefix you define per category.</li>
<li>The product ID portion is zero-padded to fill the remaining SKU length.</li>
<li>A trailing digit is appended to ensure uniqueness in case of collisions.</li>
</ul>
<h4>Features</h4>
<ul>
<li>Automatic SKU assignment — Products saved without a SKU get one automatically.</li>
<li>Two prefix modes — Use the category ID as a prefix, or define your own custom prefix for each category.</li>
<li>Configurable SKU length — Set your preferred total SKU length between 8 and 20 characters.</li>
<li>Live SKU preview — A suggested SKU appears below the SKU field on the product edit screen, updating in real time as you change categories.</li>
<li>Click-to-insert — Click the suggested SKU to instantly populate the SKU field.</li>
<li>Collision handling — If a generated SKU already exists, the plugin automatically tries alternative suffixes.</li>
<li>Settings page — Configure everything from Products > Auto SKU Generator in your WordPress admin.</li>
<li>Clean uninstall — All plugin data is removed when you delete the plugin.</li>
</ul>
<h4>Use Cases</h4>
<ul>
<li>Online stores with large product catalogs that need consistent SKU formatting.</li>
<li>Shops where multiple team members add products and you want standardized SKUs.</li>
<li>Stores migrating from another platform that need to establish a new SKU system.</li>
<li>Any WooCommerce store that wants to save time on manual SKU entry.</li>
</ul>
<h4>Requirements</h4>
<ul>
<li>WordPress 5.6 or higher</li>
<li>WooCommerce 5.0 or higher</li>
<li>PHP 7.4 or higher</li>
</ul>

RDP Auto SKU Generator

Automatically generate unique SKUs for WooCommerce products using category-based prefixes or custom prefixes you define.

mattsgarage

The search functionality in woocommerce doesn’t search by sku by default.
This simple plugin adds this functionality search facility of your site, in both the public site and admin panel
Just install and activate – no config required.
Tested with Woocommerce 1.5.6, 2.0.7, 2.0.18, 2.2.4, 2.2.10, 3.4.4, 4.0.1 and 4.2.0
See the <a href="http://www.mattyl.co.uk/2012/12/11/woocommerce-plugin-to-search-products-by-sku/" title="accompanying blog post" rel="nofollow ugc">Accompanying blog post</a> for more information.

Search by SKU for Woocommerce

Extend the search functionality of woocommerce to include searching of sku

RDP Auto SKU Generator vs Search by SKU for Woocommerce