James Golovich

<a href="http://www.woothemes.com/woocommerce/" rel="nofollow ugc">WooCommerce</a> doesn’t remove an item from inventory until someone actually buys 
that item. This plugin can reduce the “virtual” stock quantity of an item without actually modifying the item 
inventory, so there should be no problems with missing data if somehow the cart data is deleted. This plugin isn’t for 
everyone, but people that are selling specialty items will find it useful and hopefully eliminate some customer 
support nightmares.
The plugin can automatically expire items from the cart (disabled by default) with a configurable expiration time. 
Expiration times are plain english using whatever types php’s strtotime can support (Examples: 10 minutes, 1 hour, 6 hours, 1 day) 
Per item expiration time can be configured by adding a Custom Field to each item using the configured 
‘Expire Custom Key’ (default name is ‘csr_expire_time’).
Expiration can be enabled independently of reducing the cart stock, so this plugin can also be used to expire items at 
other intervals than the default WooCommerce cart/session expiration.
An issue was opened on the <a href="https://github.com/woothemes/woocommerce/issues/5966" rel="nofollow ugc">WooCommerce issue tracker</a> regarding 
this problem and someone posted on Facebook about it, which caught my attention.
Please submit bug reports, feature requests, and pull requests via the <a href="https://github.com/jamesgol/woocommerce-cart-stock-reducer" rel="nofollow ugc">GitHub repository</a>
<h3>TODO</h3>
<ul>
<li>Look into adding ajax and mini-cart notices</li>
<li>Take some screenshots for wordpress.org</li>
<li>Add some kind of indicator to cart so you know what items will expire</li>
</ul>
<h3>Thanks</h3>
<ul>
<li>Bob DeYoung of <a href="https://github.com/bluelotusworks" rel="nofollow ugc">BlueLotusWorks</a> for testing, feedback, and support</li>
</ul>

WooCommerce Cart Stock Reducer

I use both virtual stock reduction and cart item expiration. Both work exactly as promised.

I was also able to:
1. Add a "Quantity reserved" column to my product list in admin
2. Localize the countdown text for cart expiration
thanks to the excellent code in thus plugin.

Just fantastic - a must at sometimes busy stores

We needed a ticket-sales like cart capability where a ticket is 'blocked' once added to a cart preventing others from purchasing for a set-time, but then needed to return the item to the cart automatically after the timeout.

This plug-in worked perfectly with the latest Woo Commerce plugin, additionally displaying a count-down timer nicely in the cart. When the timer expires the item is removed from the cart automatically.  

Nice work!

Using for a cart-timer so that items return to inventory after timeout

Allow WooCommerce inventory stock to be reduced when adding items to cart and/or expire items from the cart

ycplugins

yakacj

This plugin for WordPress/WooCommerce store, by this plugin you can set variable product’s variation availability to auto outofstock or delete on specific date-time.
This means your specific variation will available to purchase till provided specific date-time only. After date-time variation will auto out of stock or deleted (according to which you set action). Now custom timezones added : will be useful when local time and server time is different. Please check timezone settings once plugin activated for accurate time action.
If you like this plugin, please consider leaving a <a href="https://wordpress.org/support/plugin/variation-auto-expire-for-woocommerce/reviews/?rate=5#new-post" rel="ugc">5 star review</a> to inspire me to develope more cool plugins like this in future.
<h3>Pro Features</h3>
<ul>
<li>All product type supported 
— Like Simple, Variable, Variation, Grouped, WooCommerce Subscription, WooCommerce Booking etc.</li>
<li>Set expiry for Whole product Simple, Variable, Grouped ( with all variations in case product is variable ) 
— This allows you to easily set an expiry date and time for your entire product, as well as for each variation of a variable product or simple, grouped etc products. This feature enables you to provide your customers with accurate information about the product will become unavailable. By setting an expiry date and time for your products, you can also optimize inventory management by ensuring that products are sold within their optimal lifespan/availability/stock. Our user-friendly interface makes it simple to set expiry dates and times for your products, whether you’re managing a single product or a complex variable product with multiple variations. Our platform is designed to help you streamline your operations and provide a more engaging and informative shopping experience for your customers.</li>
<li>Convenient interface for Bulk edit/update products expiry/action 
— Pro version have an unique interface for bulk editing and updating product expiry and actions. This feature is especially beneficial for businesses dealing with perishable goods or time-sensitive products. With just a few clicks, you can easily update the expiry dates of multiple products simultaneously, ensuring that your inventory is always accurate and up-to-date.</li>
<li>Show/Hide timer like countdown on product page 
— In Pro version we provides the option to show or hide a timer-like countdown on product pages. This feature is ideal for businesses selling products with limited quantities or time-bound promotions. The countdown adds a sense of urgency and exclusivity, encouraging customers to make a purchase before the product runs out or the promotion expires. Our customizable timer can be easily integrated into your product pages, providing an engaging and interactive shopping experience for your customers. Whether you’re running a flash sale or promoting a limited edition item, our timer feature is the perfect tool to help you maximize sales and customer engagement. You can change timer colours to custom colours which match your theme.</li>
<li>Every product different timer 
— This also allows you to show a unique countdown timer for each individual product. This feature is perfect for businesses selling products with varying expiration dates, promotional periods, or limited quantities. By displaying a customized countdown timer for each product, your customers will have a clear understanding of the product’s availability and urgency.</li>
<li>Custom stock status text 
— Our platform offers the ability to customize the out-of-stock/backorder text that appears on your product pages. Instead of displaying the default “out of stock” or “On backorder” message, you can create a more personalized and engaging message for every product/variation different that better reflects your brand and product offerings. This feature allows you to provide a better customer experience by communicating more clearly and effectively when a product is unavailable. By customizing the out-of-stock text, you can also provide alternative product recommendations or suggest similar products that are still in stock, helping to reduce customer frustration and improve overall satisfaction.</li>
<li>Show custom text/message for selected variation 
— In addition to customizing the out-of-stock/backorder text, our platform also allows you to show a custom text or message above the product. This feature provides an excellent opportunity to highlight promotional offers, product features, or any other important information that you want to draw your customers’ attention to. By displaying a custom message above the product, you can also provide additional context or instructions, such as how to use the product or how it compares to similar products. This feature can help you improve customer engagement and conversion rates by providing a more personalized and informative shopping experience.</li>
<li>Show expiry datetime 
— This offers a unique feature that allows you to display the unavailability date and time( in human readable format ) of your products directly within the custom text using a placeholder: {datetime}. This feature enables you to inform your customers about the exact date and time when a product will become unavailable, providing them with ample time to make a purchase decision.</li>
<li>Email notifications 
— You will receive timely email notifications when a product expires or is deleted, ensuring you stay informed about changes to your catalog. These notifications are triggered by the expiry time you set for each product, providing you with a seamless and automated way to manage your inventory.</li>
</ul>
<h3><a href="https://ycplugins.com/item/product-auto-expiry-for-woocommerce/" rel="nofollow ugc">Upgrade to Pro</a></h3>
<h3>OUR OTHER FREE PLUGINS</h3>
<a href="https://wordpress.org/plugins/price-changer-for-woocommerce/" rel="ugc">Price Changer For WooCommerce</a>: 
By this plugin, you can change millions of products price by specific percentage or amount quickly.
<a href="https://wordpress.org/plugins/new-custom-order-columns/" rel="ugc">New Custom Order Columns</a>: 
By this plugin, you can add unlimited admin shop order columns in WooCommerce.
<h3>Support</h3>
Email support for this plugin <a href="mailto:yakacj@yahoo.com?Subject=About%20your%20Variation%20Auto%20Expire%20For%20WooCommerce%20Plugin" rel="nofollow ugc">here</a>

Variation Auto Expire For WooCommerce

Change variation stock status to out of stock or delete on specific date-time (variation availability till specific date-time only).

WooCommerce Cart Stock Reducer vs Variation Auto Expire For WooCommerce