When an event is created in Outlook by an Outlook user (user A) who does not exist in Odoo but who invites an Odoo user (user B) who syncs his calendar with his Outlook calendar, the event will appear in the user B Odoo calendar. If user A cancels this event in Outlook, then when user B syncs his Odoo calendar, the event must be removed. closes odoo/odoo#87844 Task-id: 2746046 X-original-commit: f54a56a91e75e3de8b54a7c6c76164929a11a431 Signed-off-by: Arnaud Joset <arj@odoo.com>