Hi,

You want to create a webpage in Odoo 18 that displays a table of employee data and shows a notification whenever employee records are created or updated. The recommended approach is to create a custom module that adds a controller to render the employee table template, extends the hr.employee model to send a notification using bus.bus whenever records are created or updated, and includes JavaScript on the frontend to listen for these notifications and display them dynamically without refreshing the page. This setup leverages Odoo’s real-time messaging system to notify users of changes while keeping the module modular and upgrade-safe.

* https://www.cybrosys.com/blog/how-to-create-and-configure-web-controllers-in-odoo-18

* https://www.cybrosys.com/blog/key-elements-of-controller-request-and-response-in-odoo-18

Hope it helps