This project was carried out by two people during my last year at the University of Engineering and Architecture of Fribourg. The goal of this project was to create a client space on the [ESS la Berra website] (https://www.esslaberra.ch/) allowing the client, after logging in with a login, to see the different ski lessons he has taken as well as the different information related to this payment. As the site is based on wordPress, it was necessary to create a plugin that allows the connection to the Odoo ERP, and thus retrieve the customer data via the XML-RPC protocol, and provide them on the customer interface. The Odoo ERP also had to be implemented, to meet the needs of this project initially, but also in order to exploit it more widely later on.