Kyriakos

<ul>
<li>Admin menu: COD Customers with columns Name, Email, City, Received COD (Yes/No).</li>
<li>If Received COD = No, the cod gateway is removed at checkout for that customer.</li>
<li>Applies when users are logged in OR when they simply enter their email address on the checkout form.</li>
<li>Lightweight, no database tables required (uses user meta).</li>
</ul>

COD Control

Control WooCommerce Cash on Delivery availability per customer.

woofx

Rafaat Wasik Ahmed

This plugin is made for people who need to confirm Cash-on-Delivery (COD) orders before processing them.
By default, WooCommerce sets COD order statuses to ‘Processing’ and reduces stock accordingly. If you need to reduce the stock only when an order is confirmed, this plugin is for you.
Set the default status of COD payment method to ‘On-hold’ or ‘Pending Payment’ and check ‘Do not reduce stock’. And you are all set.
When the order is confirmed, and its status set to ‘Processing’ (usually by an admin or manager), stocks will be reduced.
Contribute <a href="https://github.com/woofx/cod-default-status-woocommerce" rel="nofollow ugc">https://github.com/woofx/cod-default-status-woocommerce</a>

COD Default Status for WooCommerce

Set default status for Cash on Delivery (COD) orders. Also manage inventory reduction behavior for COD orders.

COD Control vs COD Default Status for WooCommerce