Hi,

I try for my first custom module, to add '-customer' in the name if I change his name, juste for test if my @onchange call works correctly.  😌

And... it doesn't work, nothing happens !  😏

The module is installed correctly. Here is my module structure : 

Speaker 

    > __init__.py

    > __openerp__.py

    > res_partner.py

__init__.py : 

import res_partner

res_partner.py : 

# -*- coding: utf-8 -*-

from openerp import models, fields, api, _
from openerp.exceptions import except_orm,Warning, ValidationError
from openerp.addons.base_openprod import utils

import logging
from openerp.osv import expression
_schema = logging.getLogger(__name__ + '.schema')


class res_partner(models.Model):
    _name = 'res.partner'
    _inherit = ['res.partner']
    _order = 'reference, name'
    
    @api.onchange('is_other_third_party')
    def _onchange_nameotherparty(self):

        if self.is_other_third_party:
            self.name = self.name + "-otherparty"
            return {
                'warning': {
                    'title': "Change",
                    'message': "Name was changed",
                }
            }

Where did I screw up ? 🤔

Thanks !