When full composer is opened it checks for partner information by calling get_partner_info controller, if information are missing then it opens missing partner information popup to fill missing partner information, currently if partner information is missing and if try to open full composer it throws traceback, this is due to commit: https://github.com/odoo/odoo/commit/957c99abd53b42fa82903ad7ad03300797a706cf here this._rpc is used in inner function which is wrong, it should be self._rpc Scenario: we go to an opportunity and set the email but we do not set a customer, and then when we open the chat composer by sending a message, we're getting the traceback. It will be fixed in this commit. task-2005890 closes odoo/odoo#34084 Signed-off-by: Martin Geubelle (mge) <mge@openerp.com>