The Products by Attributes & Variations plugin gives you two ways to showing variations on listing pages: 1) displaying product variations as simple products, or 2) displaying product attributes on listing pages. Improve your user experience by allowing customers to find relevant variations from shop pages and add products to their cart without having to visit the product detail page.
<img class="aligncenter wp-image-18734005635358 size-full" src="https://addify.store/adv-banners/addify-store.gif" alt="" width="900" height="141" />
<h2>1.  Show variations as single products:</h2>
This feature empowers you to show variations as simple products on shop, category, and other listing pages. Customers can find relevant product variations from listing pages and add products directly to their cart, and the variations are compatible with product filters and search. This makes your catalog look bigger and improves the user experience.
<img class="alignnone size-full" src="https://woocommerce.com/wp-content/uploads/2019/10/WooCommerce-Show-Single-Variations-.png" width="958" height="1178" />
<h3>Key settings</h3>
<ul>
<li>Display variations of all or specific items as simple products</li>
<li>Exclude any variations from showing as simple product</li>
<li>Option to hide the main product from listing pages</li>
</ul>
<img class="alignnone size-full wp-image-5822577" src="https://woocommerce.com/wp-content/uploads/2019/10/WooCommerce-Show-Single-Variations-Setting-page.png" alt="" width="925" height="898" />
Exclude specific variation & customize sorting order
From Product Edit > Variations, you can exclude individual variations from displaying them as simple products on listing pages. You can also give a custom menu sorting order for each variation.
<img class="alignnone size-full wp-image-5710915" src="https://woocommerce.com/wp-content/uploads/2019/10/Variations-Settings-2.png" alt="" width="958" height="1212" />
Exclude entire attribute:
You can exclude any attribute and display products by only one attribute. For example, if you have color and size as attributes, you can exclude size and display products by color only. You can exclude this from the product edit sheet on the backend.
<img class="alignnone size-full wp-image-7957711" src="https://woocommerce.com/wp-content/uploads/2019/10/Exclude-Attribute.png" alt="" width="960" height="512" />
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<h2>2.  Display attribute selections on listing pages</h2>
This lets you add product attributes to listing pages so customers can select their desired variations and add products to their carts from a listing page. This makes shopping easier — customers will no longer need to visit individual product pages to make selections.
The attributes are displayed in the same format as on the product detail page. For example, if you are using color swatches or a third party plugin to show size options in a dropdown menu and are showing color options with checkboxes, the same dropdown and checkboxes will be displayed on listing pages
You can also utilize the toggle mode option to keep your products listing compact. Customers can click on the show/hide button to see the variations.
<img class="alignnone size-full wp-image-5710916" src="https://woocommerce.com/wp-content/uploads/2019/10/Variations-Dropdown-2.png" alt="" width="980" height="1168" />
<h3>Key settings</h3>
<ul>
<li>Display attributes of all or selected products</li>
<li>Option to display quantity box</li>
<li>Toggle mode option to keep the listings compact</li>
</ul>
<img class="alignnone size-full wp-image-5000645" src="https://woocommerce.com/wp-content/uploads/2019/10/woocommerce-Show-variations-on-shop-page-.jpg" alt="woocommerce Show variations on shop page" width="954" height="939" />
<h3>FAQs:</h3>
Can I use both features at the time?
Yes, you can convert your variations into products, and at the same time show attribute selections under the parent product.
Can I change variation product titles?
Yes, you can customize the title for each product by variation.
Is it compatible with product filter and layered navigation?
Yes, both features are 100% compatible with default sortings, product filters, and layered navigation.

Products By Attributes & Variations

This plugin enables you to 1) display product attributes on listing pages for easy selection and 2) display variations as simple products.

WP BackOffice

Link directly to a specific WooCommerce product variation using get variables – yoursite.com/your-single-product/?size=small&color=blue. This is useful if you want to send an email to customers and send them directly to a specific variation without them having to enter it in themselves.
Usage/Examples:
Attach: ‘?[variation_name]=[variation_value]‘ to the end of your product link to have the variations automatically appear on the user’s screen.
<ul>
<li>mysite.com/product/happy-ninja/?color=blue</li>
<li>mysite.com/product/happy-ninja/?color=blue&size=small (additional variations should be separated by ‘&’)</li>
<li>mysite.com/product/happy-ninja/?color=blue+green (where the variation value is “Blue Green” with the space replaced by a ‘+’)</li>
</ul>
Features:
<ul>
<li>No configuration needed, just install and start using</li>
<li>Supports an infinite number of variations</li>
<li>Fails gracefully, if the option or value doesn’t exist, the default value will appear instead</li>
<li>Default selected variations work if no product is specified in url</li>
<li>100% case insensitive</li>
<li>Works with any variation settings you have ie. custom images, prices etc.</li>
</ul>
<a href="http://wpbackoffice.com/plugins/woocommerce-direct-variation-link/" rel="nofollow ugc">Plugin’s Official Documentation and Support Page</a>

WooCommerce Direct Variation Link

Link directly to a specific WooCommerce product variation using get variables (yoursite.com/your-single-product?size=small&color=blue).

Products By Attributes & Variations vs WooCommerce Direct Variation Link