Laszlo Kruchio

This plugin creates an input field on the single product page, if the product is out of stock under the summary. The user can enter an email address to subscribe for the product alert. 
This email address is saved to the database within a new table. If the product stock changed from out of stock, the user will get an email with a custom message. This message can be edited on the option page.
Warning: The plugin doesn’t work 100% with variable products.
<ul>
<li>Custom Email Sender / Subject / Email address</li>
<li>Custom Email Message with tags (%product_name%, %product_link%)</li>
<li>Custom Placeholder & Submit button value for the form</li>
<li>Custom Error / Success message</li>
<li>Disable default CSS</li>
<li>Use shortcode instead of the default form</li>
<li>List of subscribers with filters</li>
</ul>
Logo and Banner design by <a href="https://ie.linkedin.com/pub/andressa-lombardo/89/173/486" rel="nofollow ugc">Andressa Lombardo</a>

Instock Email Alert for Woocommerce

Simple, Clean and works perfect.

Handy plugin to create an input field if the product is out of stock. The user will be alerted with a custom email, when the product stock changed.

Mewz

Attribute Stock for WooCommerce gives your stock superpowers by allowing you to share inventories between multiple products/variations, or deduct different amounts of stock for each purchase of a product, variation, or attribute.
Easily track and manage shared stock, variable quantities, product addons, combo packs, measurements, components, and much more!
<h4>⚠️ LITE VERSION LIMITATIONS ⚠️</h4>
This is a FREE LITE VERSION for testing and limited use. Most importantly, it does not affect frontend product stock or prevent over-purchasing. It can however be used to track internal attribute stock without affecting product availability. For all features listed below, please purchase the <a href="https://codecanyon.net/item/woocommerce-attribute-stock/25796765" rel="nofollow ugc">FULL VERSION</a>.
<h4>What problem does Attribute Stock solve?</h4>
If you’ve used WooCommerce for a little while, you know its stock capabilities are quite limited. Each product or product variation can have a stock quantity and that’s about it. Essentially your products are your stock items.
This works fine when you’re selling simple products, but as soon as you need to do things like share stock between multiple products, or deduct variable amounts of stock quantities per sale, you’re out of luck.
<h4>How does Attribute Stock solve this?</h4>
Attribute Stock extends WooCommerce’s stock functionality by adding a few essential features like <a href="https://wcas-docs.mewz.dev/attribute-stock" rel="nofollow ugc">rule-based stock items</a> that can be easily shared between multiple products. And versatile <a href="https://wcas-docs.mewz.dev/stock-multipliers" rel="nofollow ugc">stock multipliers</a> to control the amount of stock deducted for each purchase of a product, variation, attribute term, or stock item.
Whether you make use of powerful rule-based stock items, or simply add stock multipliers to your products, your stock levels will be accurately tracked, product availability will be appropriately displayed, and over-purchasing will be prevented.
<h3>✨ Plugin Features</h3>
Rule-based Stock 
Assign and share stock with products in any way you can imagine using simple and powerful rules.
Variable Stock 
Deduct different quantities of product stock or attribute stock per sale with stock multipliers. Useful for measurements, weights, packs, etc.
Stock Management 
Admin dashboard for easy management of attribute stock items. Set SKUs, stock images, product filters, and more.
Powerful Customization 
Extensive flexibility to set up virtually any type of stock configuration using match rules, product filters, component stock, and more.
“Any” Variations 
Use simple variations for your products. Stock will be accurately tracked without the need to specify every combination of attribute term options.
CSV Import/Export 
Instantly export your attribute stock to CSV. Add or update stock in your favorite spreadsheet editor, then import your changes with a single click.
REST API & Webhooks 
Manage your attribute stock from external software with our fully integrated WooCommerce REST API endpoint and webhook topics.
Highly Compatible 
Plays well with most plugins, such as Variation Swatches, POS systems, Subscriptions, Product Bundles, Waitlists, Cart Stock Reducer, WP-Lister, WPML, Polylang, and more.
Developer Friendly 
Almost anything that can’t already be configured can be added or changed with powerful actions and filters.
* Please note that WordPress Multisite and multi-store synchronization is not currently supported or planned.
<h3>🧩 Usage Examples</h3>
<h4>Example #1 – Variable Stock (<a href="https://wcas-demo.mewz.dev/wp-admin/post.php?post=69&action=edit" rel="nofollow ugc">Demo</a>)</h4>
Let’s say you sell tea in packs of different weights. You can simply set your total tea stock at the product level and specify a stock multiplier on each product variation. The respective amount will be deducted from your total stock for each purchase. If you need to share variable stock across more than one product listing, you can use attribute stock items instead.
<h4>Example #2 – Multiple Attributes (<a href="https://wcas-demo.mewz.dev/wp-admin/post.php?post=127&action=edit" rel="nofollow ugc">Demo</a>)</h4>
Often your stock will have more than one attribute, such as t-shirts with different sizes and colors. In this case it’s trivial to create attribute stock items with rules to match any combination of attributes across any number of products.
<h4>Example #3 – Product Bundles (<a href="https://wcas-demo.mewz.dev/wp-admin/post.php?post=369&action=edit" rel="nofollow ugc">Demo</a>)</h4>
Sometimes you’ll want to sell several individual products as well as a bundle of these products for a discount. Stock items can be assigned easily to any number of simple products or product variations, seamlessly sharing stock between them.
<h4>Example #4 – Component Stock (<a href="https://wcas-demo.mewz.dev/wp-admin/edit.php?s=candle&post_type=attribute_stock" rel="nofollow ugc">Demo</a>)</h4>
In some cases you might need to track stock items made from other stock items. For example, let’s say you design and sell hand-painted candles. By setting your plain candle stock as a component of your painted candle stock, you can track and sell each separately while allowing your painted candles to use the additional stock quantity of your plain candles.
Component stock is a powerful feature that can be used for many other advanced stock requirements such as batches of inventory, composed products, and even stock from multiple suppliers. Learn more about how it works in our documentation below.
<h3>📖 Documentation</h3>
Want to learn more about Attribute Stock for WooCommerce? Head over to the <a href="https://wcas-docs.mewz.dev/" rel="nofollow ugc">online documentation</a>.
Be sure to look through the <a href="https://wcas-docs.mewz.dev/faq-troubleshooting.html" rel="nofollow ugc">FAQ & Troubleshooting</a> section if you’re running into any issues.

Attribute Stock for WooCommerce – Shared Stock & Variable Quantities (Lite Version)

Set up complex stock configurations with ease. Shared stock, variable quantities, the possibilities are endless.

Instock Email Alert for Woocommerce vs Attribute Stock for WooCommerce – Shared Stock & Variable Quantities (Lite Version)