Hi !

I added a custom field in the general settings but I can't save the field. When I take a look at the field in DB, it is always set to False

python file:

from odoo import fields, models, api

class MattermostConfig(models.TransientModel):
    _inherit = 'res.config.settings'

    mm_access_token = fields.Char("MM access token")

xml file:

<?xml version="1.0" encoding="utf-8"?>
<odoo>
    <record id="res_config_settings_mm" model="ir.ui.view">
        <field name="name">res.config.settings.view.mattermost</field>
        <field name="model">res.config.settings</field>
        <field name="inherit_id" ref="base_setup.res_config_settings_view_form"/>
        <field name="arch" type="xml">
            <xpath expr="//div[@id='multi_company']" position="after">
                <div name="mattermost">
                    <h2>Mattermost Integration</h2>
                    <div class="row mt16 o_settings_container" id="multi_branch">
                        <div class="col-12 col-lg-6 o_setting_box">
                            <label for="mm_access_token" string="Mattermost Access Token"/>
                            <field name="mm_access_token" class="oe_inline"/>
                        </div>
                    </div>
                </div>
            </xpath>
        </field>
    </record>
</odoo>