WooClientZone provides two types of communication areas (Client Zones):
User-linked Client Zones
These are associated with individual customers independently from any order they may place.
In the front end, these zones are accessed from the My Account > Communications link (note that the text Communications is configurable from the back end settings. See the relevant parameter).
In the back end, these zones are accessed from the WordPress standard Users menu, or from the WooCommerce > Reports > Customers > Customer List page.
Order-linked Client Zones
These are associated with orders placed by customers. You may configure the system to create a zone for each and every order placed, or just for those orders that include certain specific products.
Order-linked zones are accessed (front end) from the My Account > My Orders link, and (back end) from the WooCommerce > Orders menu item.