We'll create fresh WordPress site with Front End PM – WooCommerce Integration installed. You have 20 minutes to test the plugin after that site we'll be deleted.
Front End PM extension to integrate with WooCommerce. User can contact seller directly from product page. Option to set so that user can contact seller only after purchase.
This two plugins need to be activated first before activating this extension.
Once activated, user can send message to seller directly from product page.
You can go to Dashboard > Front End PM > Settings > Misc > WooCommerce to set if you want your users can contact seller only after purchase. You can also set in which order statuses customer can contact seller.
Github
https://github.com/shamim2883/front-end-pm-woocommerce-integration