Steps: install calendar app. enable sms template of calendar. go to calendar event form view. try to send SMS. Issue: traceback clicking `Send SMS' of Send SMS wizard. Cause: trying to write on field even though field does not exist in model. Fix: check field exist in model before write on it. task-3084701 closes odoo/odoo#114824 X-original-commit: b773006055f0c29e56b2719621e2abd80af6b9e7 Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>