Hi,

To change the domain in the invitation emails in Odoo 18, you need to configure the "web.base.url" parameter. First, activate Developer Mode, Afterward, go to Settings > Technical > System Parameters, search for web.base.url, and update it with the correct domain (e.g., https://yourdomain.com). If the parameter doesn’t exist, create it manually. After saving the change, restart your Odoo instance to ensure the new domain is used for links in outgoing emails, like user invitations.

Hope it helps.

Assuming 172.0.0.1 is a typo any you're actually running on localhost (else, just navigate to Settings -> Technical (requires Developer Mode) -> System Parameters): http://127.0.0.1:8069/odoo/system-parameters --> search for key "web.base.url" and set the value to your liking