brickdots

Assign/Share a todo item to/with internal users by mentioning them.
<ol>
<li>Mention internal users when an admin wants to assign a todo item to colleagues by typing <code>@</code> when creating a todo item.</li>
<li>Mentioned users would get notification emails. A mentioned user would get an email with the todo item and the link to the edit page that the todo list is on. </li>
<li>Check your todo items on the dashboard. All your todo items (todos mention you) will be on your dashboard. You can go to the edit page by clicking an item.</li>
<li>
Create a todo list in many post types
These are the compatible post types.
<ol>
<li>Posts</li>
<li>WooCommerce Products/Orders/Coupons</li>
<li>Event calendar events</li>
<li>More to come</li>
</ol>
</li>
</ol>

Admin Todotastic

Admins can assign or share todo items attached to a post, a WooCommerce order, a product, and a coupon by mentioning internal users.

Sharif ME

ashikrnhq04

The Todo Plugin is a tool designed to enhance productivity and task management within the WordPress admin area. This plugin allows admins to easily create and manage tasks, keeping track of what needs to be done.
You can manage the Todo from Dashboard -> Todo or from the Dashboard widget.

Simple Dashboard Todo

A simple todo management plugin for WordPress site admins. Stay consistent and never forget anything.

Admin Todotastic vs Simple Dashboard Todo