imemine

<p>Limit Quantity for WooCommerce lets you set maximum purchase limits for individual WooCommerce products. Add a field in the product edit screen to define the maximum allowed quantity per product.</p>
<h3>Features</h3>
<ul>
<li>Define custom maximum purchase quantities for individual products.</li>
<li>Automatically reduce cart quantities exceeding the limit.</li>
<li>Display clear notices for adjusted cart quantities.</li>
</ul>


Limit Quantity for WooCommerce

Set maximum quantity limits for WooCommerce products, restricting customer purchases per product.

Condless

<p>Limit the number of posts user can create. Any post type.</p>
<p><a href="https://en.condless.com/user-posts-limit/" rel="nofollow ugc">Documentation</a> | <a href="https://en.condless.com/contact/" rel="nofollow ugc">Contact</a></p>
<h4>How To Use</h4>
<ol>
<li>Plugin Settings: Select role, post type, limit, and cycle.</li>
</ol>
<h4>How It Works</h4>
<ul>
<li>On post creation the number of posts from this post type belong to this user for the specified cycle will be counted and if applicable the post creation will be prevented.</li>
</ul>
<h4>Features</h4>
<ul>
<li><strong>Post Creation Limits</strong>: Limit the number of posts each user role can create daily/weekly/monthly/yearly/ever.</li>
<li><strong>Hide Content</strong>: In order to make some content hidden when posts limit exceeded wrap it with the shortcodes (replace "post" with the post type of the relevant rules): [upl_hide type="post"][/upl_hide]</li>
<li><strong>Display Limits</strong>: Display the limits to the user anywhere with the [upl_limits] shortcode.</li>
<li><strong>Users Stats</strong>: Track how many posts each user used from his quota.</li>
<li><strong>Multisite</strong>: Network-wide rules can be applied via the Network Admin Dashboard (doesn’t support the Hide Content, Display Limits and Users Stats features).</li>
<li><strong>Integrations</strong>: WooCommerce, Paid Memberships Pro, MyListing theme, Restrict Content Pro, PeepSo, WordPress REST API.</li>
<li><strong>Limits per User</strong>: Set limits per user (see instructions in docs).</li>
</ul>


User Posts Limit

Отличный плагин

With a little elbow grease, the possibilities are really interesting for a multisite installation, such as limiting the total number of WooCommerce products per site (regardless of the author). The plugin is not easy to learn, not very intuitive and would surely deserve to be more explicit on certain settings, however, it does the job and the author is responsive and attentive… so I recommend it 👍 

Possibilities are really interesting for a multisite installation

Limit the number of posts user can create. Any post type.

Limit Quantity for WooCommerce vs User Posts Limit