Depending on your current installation, there are multiple ways to upgrade your community version. In any case the basic guidelines are:
- Backup your community database
- Shutdown your server
- Install the web_enterprise module
- Restart your server
- Enter your Odoo Enterprise Subscription code
On Linux, using an installer
Backup your community database
Stop the odoo service
$ sudo service odoo stop
Install the enterprise .deb (it should install over the community package)
$ sudo dpkg -i <path_to_enterprise_deb>
Update your database to the enterprise packages using
$ python3 /usr/bin/odoo-bin -d <database_name> -i web_enterprise --stop-after-init
You should be able to connect to your Odoo Enterprise instance using your usual mean of identification. You can then link your database with your Odoo Enterprise Subscription by entering the code you received by e-mail in the form input
On Windows
Backup your community database
Uninstall Odoo Community (using the Uninstall executable in the installation folder) - PostgreSQL will remain installed
Launch the Odoo Enterprise Installer and follow the steps normally. When choosing the installation path, you can set the folder of the Community installation (this folder still contains the PostgreSQL installation). Uncheck Start Odoo at the end of the installation
Using a command window, update your Odoo Database using this command (from the Odoo installation path, in the server subfolder)
$ ..\python\python.exe odoo-bin -d <database_name> -i web_enterprise --stop-after-init
No need to manually launch the server, the service is running. You should be able to connect to your Odoo Enterprise instance using your usual mean of identification. You can then link your database with your Odoo Enterprise Subscription by entering the code you received by e-mail in the form input
Credit: Official Odoo Documentation on Switching from Community to Enterprise