KevinMcCall

With Stock Dependencies for WooCommerce, you can make the products and 
variations in your WooCommerce store dependent on the inventory of your other 
products or variations. Customers will be able to select and purchase the 
product without seeing the products on which it depends in their cart, during 
their checkout, or on their receipt. Inventory management in Woo Commerce is 
greatly simplified since you only have to manage inventory levels for the 
item(s) on which your product or variation is dependent.
Stock Dependencies for WooCommerce works for Simple and Variable product types 
in WooCommerce and you can make a product or variation dependent on a 
combination of other products and variations. Stock Dependencies for WooCommerce 
lets you create dependencies on quantities of one or more of the other products.
Stock Dependencies for WooCommerce is ideal for:
<ul>
<li>Selling products in multiple quantities. For an product you already have in 
your inventory, you can use Stock Dependencies for WooCommerce to sell, for 
example, a package of six items and and package of 12 items. With Stock 
Dependencies for WooCommerce you do not need to maintain inventory levels for 
each quantity of the product as the product inventory is managed for only the 
single quantity item.</li>
<li>Selling bundled products. You can create a bundle of 
multiple items and sell them as a single item. With Stock Dependencies for 
WooCommerce your customers will only see the bundle product in their cart, 
during the checkout process, and on their order receipt.</li>
</ul>
When a product with stock dependencies is displayed in your store, Stock 
Dependencies for WooCommerce will check the inventory of the products on which 
it depends and will only show the product as being available if all the 
dependent stock items are available. When a product with stock dependencies is 
added to a shopping cart and eventually purchased, the customer will only see 
the single product in their cart and order, and will not see the products on 
which it is dependent. When the product is purchased, Stock Dependencies for 
WooCommerce will reduce the inventory of the items on which it is dependent by 
the appropriate amount.
<h3>Configuring</h3>
Stock Dependencies for WooCommerce is easy to configure for any simple or 
variable product in your WooCommerce store. A single checkbox is added to each 
simple product or variation in your WordPress admin that allows you to enable 
stock dependencies for that product or variation. Once checked, two fields are 
added for the SKU and the quantity of the dependency. Additional dependencies 
can be easily added.
<h3>Shopping</h3>
When a customer views a product with dependencies in your WooCommerce store, 
they will see the product as you have configured it, but the available quantity 
and in-stock status will be determined by Stock Dependencies for WooCommerce 
from the available quantities of each of the products and variations on which it 
is dependent.
<h3>Cart, Checkout, and Receipt</h3>
Customers will only see the product they selected, and not the products upon 
which it is dependent, in their shopping cart, during the checkout process, and 
on their receipt.
<h3>Restocking Refunds and Cancelled Orders</h3>
When you issue a refund or cancel an order that has stock dependencies, the 
plugin will restock the dependency products.
<h3>Privacy</h3>
The Stock Dependencies for WooCommerce plugin does not affect the way personal 
information is collected or stored within your WooCommerce store or your 
WordPress installation.
<h3>Open Source</h3>
The Stock Dependencies for WooCommerce plugin is open source software. Feel free 
to contribute or fork this code on 
<a href="https://github.com/kmac420/stock-dependencies-for-woocommerce/" rel="nofollow ugc">GitHub</a>.

Stock Dependencies for WooCommerce

GREAT!

Make your products' availability and stock dependent on the inventory of other products in your WooCommerce store.

Juliette Reinders Folmer

The awesome <a href="https://wordpress.org/plugins/plugin-dependencies/" rel="ugc">WordPress Plugin Dependencies</a> plugin introduces plugin dependency management right into your WordPress admin area.
Unfortunately, the reality is that very few plugins currently contain dependency information and until that changes, the effect of having the WordPress Plugin Dependencies plugin activated is minimal.
This plugin enriches the information about dependencies available to the Plugin Dependencies plugin bridging the gap until plugins catch up and start incorporating the <code>Depends</code> and <code>Provides</code> tags in their file headers properly.
<blockquote>
You’ll need to have version 1.3 or higher of the <a href="https://wordpress.org/plugins/plugin-dependencies/" rel="ugc">WordPress Plugin Dependencies</a> plugin installed for this plugin to have any effect.
</blockquote>
<h4>Disclaimer:</h4>
The dependency list provided by this plugin is – and will always be – incomplete.
Additional information to be added to the list is <a href="https://github.com/jrfnl/wp-known-plugin-dependencies/pulls" rel="nofollow ugc">very welcome</a> and will be gracefully accepted.
Even better: send a pull request or bug report to your favorite add-on plugin requesting them to start using the tags.
<h4>Background</h4>
This plugin was inspired by <a href="https://github.com/x-team/wp-plugin-dependencies/issues/34" rel="nofollow ugc">this discussion</a>.
Rather than having individual developers create their own lists to enrich the available information, this plugin tries to bundle the knowledge of dependencies.
The ultimate goal is for the <code>Depends</code> tag to be widely adopted and this plugin to become obsolete.
Of course, it would also help a lot if the Depends/Provides tags would be officially recognized and mentioned in the <a href="https://wordpress.org/plugins/about/faq/" rel="ugc">Plugin Developers FAQ</a> and if what’s expected to be at the top of the main .php file would be as well documented as the readme.txt file in the <a href="https://wordpress.org/plugins/about/" rel="ugc">Developer Center</a>, but that’s a whole other challenge 😉
Any lobbying you can do for this will of course be encouraged and applauded!
If you like this plugin, please <a href="https://wordpress.org/support/view/plugin-reviews/known-plugin-dependencies" rel="ugc">rate and/or review</a> it. If you have ideas on how to make the plugin even better or if you have found any bugs, please report these in the <a href="https://wordpress.org/support/plugin/known-plugin-dependencies" rel="ugc">Support Forum</a> or in the <a href="https://github.com/jrfnl/wp-known-plugin-dependencies/issues" rel="nofollow ugc">GitHub repository</a>.

Known Plugin Dependencies

Add-on plugin for the WordPress Plugin Dependencies plugin, injecting additional information about known dependencies between plugins.

Stock Dependencies for WooCommerce vs Known Plugin Dependencies