diff --git a/addons/account/security/account_security.xml b/addons/account/security/account_security.xml
index fc5279f05f8..c68da09d4b3 100644
--- a/addons/account/security/account_security.xml
+++ b/addons/account/security/account_security.xml
@@ -75,11 +75,7 @@
     </record>
 
     <record id="base.user_admin" model="res.users">
-        <field name="groups_id" eval="[(4, ref('account.group_account_invoice'))]"/>
-    </record>
-
-    <record id="base.group_system" model="res.groups">
-        <field name="implied_ids" eval="[(4, ref('account.group_account_manager'))]"/>
+        <field name="groups_id" eval="[(4, ref('account.group_account_manager'))]"/>
     </record>
 
     <record id="group_warning_account" model="res.groups">
diff --git a/addons/account/tests/common.py b/addons/account/tests/common.py
index 2f8af2578be..7b0515bf16c 100644
--- a/addons/account/tests/common.py
+++ b/addons/account/tests/common.py
@@ -46,7 +46,11 @@ class AccountTestInvoicingCommon(TransactionCase):
             'name': 'Because I am accountman!',
             'login': 'accountman',
             'password': 'accountman',
-            'groups_id': [(6, 0, cls.env.user.groups_id.ids), (4, cls.env.ref('account.group_account_user').id)],
+            'groups_id': [
+                (6, 0, cls.env.user.groups_id.ids),
+                (4, cls.env.ref('account.group_account_manager').id),
+                (4, cls.env.ref('account.group_account_user').id),
+            ],
         })
         user.partner_id.email = 'accountman@test.com'
 
diff --git a/addons/account/tests/test_account_onboarding.py b/addons/account/tests/test_account_onboarding.py
index c2b9c472eac..aedb9d4dba4 100644
--- a/addons/account/tests/test_account_onboarding.py
+++ b/addons/account/tests/test_account_onboarding.py
@@ -13,7 +13,7 @@ class TestTourRenderInvoiceReport(AccountTestInvoicingHttpCommon):
 
         cls.env.user.write({
             'groups_id': [
-                (6, 0, (cls.env.ref('account.group_account_invoice') + cls.env.ref('base.group_system')).ids),
+                (6, 0, (cls.env.ref('account.group_account_manager') + cls.env.ref('base.group_system')).ids),
             ],
         })
 
diff --git a/addons/account/views/res_config_settings_views.xml b/addons/account/views/res_config_settings_views.xml
index 2bbd7ee59d5..687c9a52047 100644
--- a/addons/account/views/res_config_settings_views.xml
+++ b/addons/account/views/res_config_settings_views.xml
@@ -17,6 +17,7 @@
             <field name="model">res.config.settings</field>
             <field name="priority" eval="40"/>
             <field name="inherit_id" ref="base.res_config_settings_view_form"/>
+            <field name="groups_id" eval="[(4, ref('account.group_account_manager'), 0)]"/>
             <field name="arch" type="xml">
                 <xpath expr="//div[hasclass('settings')]" position="inside">
                     <field name="country_code" invisible="1"/>
diff --git a/addons/auth_totp_mail_enforce/views/res_config_settings_views.xml b/addons/auth_totp_mail_enforce/views/res_config_settings_views.xml
index 06a3b1a26b6..63ee55de812 100644
--- a/addons/auth_totp_mail_enforce/views/res_config_settings_views.xml
+++ b/addons/auth_totp_mail_enforce/views/res_config_settings_views.xml
@@ -6,7 +6,7 @@
             <field name="name">res.config.settings.view.form.inherit.auth_totp_mail_enforce</field>
             <field name="model">res.config.settings</field>
             <field name="priority" eval="40"/>
-            <field name="inherit_id" ref="base.res_config_settings_view_form"/>
+            <field name="inherit_id" ref="base_setup.res_config_settings_view_form"/>
             <field name="arch" type="xml">
                 <xpath expr="//div[@id='allow_import']" position="before">
                     <div class="col-12 col-lg-6 o_setting_box" id="auth_totp_policy">
diff --git a/addons/crm/views/res_config_settings_views.xml b/addons/crm/views/res_config_settings_views.xml
index b9860e0089a..20f9755e8f0 100644
--- a/addons/crm/views/res_config_settings_views.xml
+++ b/addons/crm/views/res_config_settings_views.xml
@@ -6,6 +6,7 @@
         <field name="model">res.config.settings</field>
         <field name="priority" eval="5"/>
         <field name="inherit_id" ref="base.res_config_settings_view_form"/>
+        <field name="groups_id" eval="[(4, ref('sales_team.group_sale_manager'), 0)]"/>
         <field name="arch" type="xml">
             <xpath expr="//div[hasclass('settings')]" position="inside">
                 <div class="app_settings_block" data-string="CRM" string="CRM" data-key="crm" groups="sales_team.group_sale_manager">
diff --git a/addons/delivery/security/ir.model.access.csv b/addons/delivery/security/ir.model.access.csv
index 376581b094e..30cad15e316 100644
--- a/addons/delivery/security/ir.model.access.csv
+++ b/addons/delivery/security/ir.model.access.csv
@@ -1,5 +1,6 @@
 id,name,model_id:id,group_id:id,perm_read,perm_write,perm_create,perm_unlink
 access_delivery_carrier,delivery.carrier,model_delivery_carrier,sales_team.group_sale_salesman,1,0,0,0
+access_delivery_carrier_system,delivery.carrier,model_delivery_carrier,base.group_system,1,0,0,0
 access_delivery_price_rule,delivery.price.rule,model_delivery_price_rule,sales_team.group_sale_salesman,1,0,0,0
 access_delivery_carrier_manager,delivery.carrier,model_delivery_carrier,sales_team.group_sale_manager,1,1,1,1
 access_delivery_price_rule_manager,delivery.price.rule,model_delivery_price_rule,sales_team.group_sale_manager,1,1,1,1
diff --git a/addons/event/views/res_config_settings_views.xml b/addons/event/views/res_config_settings_views.xml
index e186e10b852..77e85b5223b 100644
--- a/addons/event/views/res_config_settings_views.xml
+++ b/addons/event/views/res_config_settings_views.xml
@@ -6,6 +6,7 @@
             <field name="model">res.config.settings</field>
             <field name="priority" eval="65"/>
             <field name="inherit_id" ref="base.res_config_settings_view_form"/>
+            <field name="groups_id" eval="[(4, ref('event.group_event_manager'), 0)]"/>
             <field name="arch" type="xml">
                 <xpath expr="//div[hasclass('settings')]" position="inside">
                     <div class="app_settings_block" data-string="Events" string="Events" data-key="event" groups="event.group_event_manager">
diff --git a/addons/fleet/views/res_config_settings_views.xml b/addons/fleet/views/res_config_settings_views.xml
index 27a22aa9e0a..0d7dda2c55b 100644
--- a/addons/fleet/views/res_config_settings_views.xml
+++ b/addons/fleet/views/res_config_settings_views.xml
@@ -6,6 +6,7 @@
             <field name="model">res.config.settings</field>
             <field name="priority" eval="90"/>
             <field name="inherit_id" ref="base.res_config_settings_view_form"/>
+            <field name="groups_id" eval="[(4, ref('fleet.fleet_group_manager'), 0)]"/>
             <field name="arch" type="xml">
                 <xpath expr="//div[hasclass('settings')]" position="inside">
                     <div class="app_settings_block" data-string="Fleet" id="fleet" string="Fleet" data-key="fleet" groups="fleet.fleet_group_manager">
diff --git a/addons/google_calendar/security/google_calendar_security.xml b/addons/google_calendar/security/google_calendar_security.xml
index 5dc9f08304e..5f4e46dd0bc 100644
--- a/addons/google_calendar/security/google_calendar_security.xml
+++ b/addons/google_calendar/security/google_calendar_security.xml
@@ -20,5 +20,11 @@
             <field name="perm_unlink" eval="0"/>
             <field name="perm_read" eval="1"/>
         </record>
+        <record id="google_calendar_token_system_access" model="ir.rule">
+            <field name="name">Google Calendar manage all tokens</field>
+            <field name="model_id" ref="model_google_calendar_credentials"/>
+            <field name="domain_force">[(1,'=',1)]</field>
+            <field name="groups" eval="[(4, ref('base.group_system'))]"/>
+        </record>
     </data>
 </odoo>
diff --git a/addons/hr/security/ir.model.access.csv b/addons/hr/security/ir.model.access.csv
index 91371e1a427..069964b8ddf 100644
--- a/addons/hr/security/ir.model.access.csv
+++ b/addons/hr/security/ir.model.access.csv
@@ -2,7 +2,7 @@ id,name,model_id:id,group_id:id,perm_read,perm_write,perm_create,perm_unlink
 access_hr_employee_category_user,hr.employee.category.user,model_hr_employee_category,group_hr_user,1,1,1,1
 access_hr_employee_category_emp,hr.employee.category.emp,model_hr_employee_category,base.group_user,1,0,0,0
 access_hr_employee_user,hr.employee user,model_hr_employee,group_hr_user,1,1,1,1
-access_hr_employee_system_user,hr.employee system user,model_hr_employee,base.group_user,0,0,0,0
+access_hr_employee_system_user,hr.employee system user,model_hr_employee,base.group_system,1,0,0,0
 access_hr_employee_public_user,hr.employee_public,model_hr_employee_public,base.group_user,1,0,0,0
 access_hr_employee_resource_user,resource.resource.user,resource.model_resource_resource,group_hr_user,1,1,1,1
 access_hr_department_user,hr.department.user,model_hr_department,group_hr_user,1,1,1,1
diff --git a/addons/hr/views/res_config_settings_views.xml b/addons/hr/views/res_config_settings_views.xml
index e1b04429aff..38e37473187 100644
--- a/addons/hr/views/res_config_settings_views.xml
+++ b/addons/hr/views/res_config_settings_views.xml
@@ -5,6 +5,7 @@
         <field name="model">res.config.settings</field>
         <field name="priority" eval="70"/>
         <field name="inherit_id" ref="base.res_config_settings_view_form"/>
+        <field name="groups_id" eval="[(4, ref('hr.group_hr_manager'), 0)]"/>
         <field name="arch" type="xml">
             <xpath expr="//div[hasclass('settings')]" position="inside">
                 <div class="app_settings_block" data-string="Employees" string="Employees" data-key="hr" groups="hr.group_hr_manager">
diff --git a/addons/hr_attendance/views/res_config_settings_views.xml b/addons/hr_attendance/views/res_config_settings_views.xml
index 54d49173cec..dbf5e0d562a 100644
--- a/addons/hr_attendance/views/res_config_settings_views.xml
+++ b/addons/hr_attendance/views/res_config_settings_views.xml
@@ -5,6 +5,7 @@
         <field name="model">res.config.settings</field>
         <field name="priority" eval="80"/>
         <field name="inherit_id" ref="base.res_config_settings_view_form"/>
+        <field name="groups_id" eval="[(4, ref('hr_attendance.group_hr_attendance_manager'), 0)]"/>
         <field name="arch" type="xml">
             <xpath expr="//div[hasclass('settings')]" position="inside">
                 <div class="app_settings_block" data-string="Attendances" string="Attendances" data-key="hr_attendance" groups="hr_attendance.group_hr_attendance_manager">
diff --git a/addons/hr_expense/views/res_config_settings_views.xml b/addons/hr_expense/views/res_config_settings_views.xml
index ba85a1ad6a8..d483082ae29 100644
--- a/addons/hr_expense/views/res_config_settings_views.xml
+++ b/addons/hr_expense/views/res_config_settings_views.xml
@@ -6,6 +6,7 @@
             <field name="model">res.config.settings</field>
             <field name="priority" eval="85"/>
             <field name="inherit_id" ref="base.res_config_settings_view_form"/>
+            <field name="groups_id" eval="[(4, ref('hr_expense.group_hr_expense_manager'), 0)]"/>
             <field name="arch" type="xml">
                 <xpath expr="//div[hasclass('settings')]" position="inside">
                     <div class="app_settings_block" data-string="Expenses" string="Expenses" data-key="hr_expense" groups="hr_expense.group_hr_expense_manager">
diff --git a/addons/hr_recruitment/views/res_config_settings_views.xml b/addons/hr_recruitment/views/res_config_settings_views.xml
index a3062ae56de..d110ab2fc5f 100644
--- a/addons/hr_recruitment/views/res_config_settings_views.xml
+++ b/addons/hr_recruitment/views/res_config_settings_views.xml
@@ -6,6 +6,7 @@
             <field name="model">res.config.settings</field>
             <field name="priority" eval="75"/>
             <field name="inherit_id" ref="base.res_config_settings_view_form"/>
+            <field name="groups_id" eval="[(4, ref('hr_recruitment.group_hr_recruitment_manager'), 0)]"/>
             <field name="arch" type="xml">
                 <xpath expr="//div[hasclass('settings')]" position="inside">
                     <div class="app_settings_block" data-string="Recruitment" string="Recruitment" data-key="hr_recruitment" groups="hr_recruitment.group_hr_recruitment_manager">
diff --git a/addons/hr_timesheet/views/res_config_settings_views.xml b/addons/hr_timesheet/views/res_config_settings_views.xml
index 09df4cd64bc..122079aa1cc 100644
--- a/addons/hr_timesheet/views/res_config_settings_views.xml
+++ b/addons/hr_timesheet/views/res_config_settings_views.xml
@@ -5,6 +5,7 @@
         <field name="model">res.config.settings</field>
         <field name="priority" eval="55"/>
         <field name="inherit_id" ref="base.res_config_settings_view_form"/>
+        <field name="groups_id" eval="[(4, ref('hr_timesheet.group_timesheet_manager'), 0)]"/>
         <field name="arch" type="xml">
             <xpath expr="//form" position="attributes">
                 <attribute name="js_class">hr_timesheet_config_form</attribute>
diff --git a/addons/lunch/views/res_config_settings.xml b/addons/lunch/views/res_config_settings.xml
index e454a423005..fade4fc8a0f 100644
--- a/addons/lunch/views/res_config_settings.xml
+++ b/addons/lunch/views/res_config_settings.xml
@@ -5,6 +5,7 @@
         <field name="model">res.config.settings</field>
         <field name="priority" eval="90"/>
         <field name="inherit_id" ref="base.res_config_settings_view_form"/>
+        <field name="groups_id" eval="[(4, ref('lunch.group_lunch_manager'), 0)]"/>
         <field name="arch" type="xml">
             <xpath expr="//div[hasclass('settings')]" position="inside">
                 <div class="app_settings_block" data-string="Lunch" string="Lunch" data-key="lunch" groups="lunch.group_lunch_manager">
diff --git a/addons/mass_mailing/views/res_config_settings_views.xml b/addons/mass_mailing/views/res_config_settings_views.xml
index 0ef06f24ac0..3a0273ef0ce 100644
--- a/addons/mass_mailing/views/res_config_settings_views.xml
+++ b/addons/mass_mailing/views/res_config_settings_views.xml
@@ -5,6 +5,7 @@
             <field name="model">res.config.settings</field>
             <field name="priority" eval="60"/>
             <field name="inherit_id" ref="base.res_config_settings_view_form"/>
+            <field name="groups_id" eval="[(4, ref('mass_mailing.group_mass_mailing_user'), 0)]"/>
             <field name="arch" type="xml">
                 <xpath expr="//div[hasclass('settings')]" position="inside">
                     <div class="app_settings_block" data-string="Email Marketing" string="Email Marketing" data-key="mass_mailing" groups="mass_mailing.group_mass_mailing_user">
diff --git a/addons/mrp/models/res_config_settings.py b/addons/mrp/models/res_config_settings.py
index c598fe20344..52d8b7b2b95 100644
--- a/addons/mrp/models/res_config_settings.py
+++ b/addons/mrp/models/res_config_settings.py
@@ -27,7 +27,7 @@ class ResConfigSettings(models.TransientModel):
         super().set_values()
         if not self.group_mrp_workorder_dependencies:
             # Disabling this option should not interfere with currently planned productions
-            self.env['mrp.bom'].search([('allow_operation_dependencies', '=', True)]).allow_operation_dependencies = False
+            self.env['mrp.bom'].sudo().search([('allow_operation_dependencies', '=', True)]).allow_operation_dependencies = False
 
     @api.onchange('use_manufacturing_lead')
     def _onchange_use_manufacturing_lead(self):
diff --git a/addons/mrp/security/mrp_security.xml b/addons/mrp/security/mrp_security.xml
index 97000a88b69..e94d13d7f57 100644
--- a/addons/mrp/security/mrp_security.xml
+++ b/addons/mrp/security/mrp_security.xml
@@ -40,10 +40,6 @@
         <field name="category_id" ref="base.module_category_hidden"/>
     </record>
 
-    <record id="base.group_system" model="res.groups">
-        <field name="implied_ids" eval="[(4, ref('mrp.group_mrp_manager'))]"/>
-    </record>
-
     <record id="group_mrp_workorder_dependencies" model="res.groups">
         <field name="name">Use Operation Dependencies</field>
         <field name="category_id" ref="base.module_category_hidden"/>
diff --git a/addons/mrp/views/res_config_settings_views.xml b/addons/mrp/views/res_config_settings_views.xml
index 86b5097627b..41b2da5937d 100644
--- a/addons/mrp/views/res_config_settings_views.xml
+++ b/addons/mrp/views/res_config_settings_views.xml
@@ -6,6 +6,7 @@
             <field name="model">res.config.settings</field>
             <field name="priority" eval="35"/>
             <field name="inherit_id" ref="base.res_config_settings_view_form" />
+            <field name="groups_id" eval="[(4, ref('mrp.group_mrp_manager'), 0)]"/>
             <field name="arch" type="xml">
                 <xpath expr="//div[hasclass('settings')]" position="inside">
                     <div class="app_settings_block" data-string="Manufacturing" string="Manufacturing" data-key="mrp" groups="mrp.group_mrp_manager">
diff --git a/addons/point_of_sale/security/ir.model.access.csv b/addons/point_of_sale/security/ir.model.access.csv
index 407217da7f3..be59f9e5fb6 100644
--- a/addons/point_of_sale/security/ir.model.access.csv
+++ b/addons/point_of_sale/security/ir.model.access.csv
@@ -35,6 +35,7 @@ access_product_pricelist_user,product.pricelist user,product.model_product_price
 access_product_tag_pos_manager,product.tag.pos.manager,product.model_product_tag,group_pos_manager,1,1,1,1
 access_pos_session_user,pos.session user,model_pos_session,group_pos_user,1,1,1,0
 access_pos_config_user,pos.config user,model_pos_config,group_pos_user,1,1,0,0
+access_pos_config_system_user,pos.config system,model_pos_config,base.group_system,1,1,0,0
 access_pos_config_manager,pos.config manager,model_pos_config,group_pos_manager,1,1,1,1
 access_product_category_pos_manager,pos.category manager,model_pos_category,group_pos_manager,1,1,1,1
 access_product_category_pos_user,pos.category user,model_pos_category,group_pos_user,1,0,0,0
diff --git a/addons/point_of_sale/views/res_config_settings_views.xml b/addons/point_of_sale/views/res_config_settings_views.xml
index b7617a841f1..52ba691e1bd 100644
--- a/addons/point_of_sale/views/res_config_settings_views.xml
+++ b/addons/point_of_sale/views/res_config_settings_views.xml
@@ -5,6 +5,7 @@
         <field name="model">res.config.settings</field>
         <field name="priority" eval="95"/>
         <field name="inherit_id" ref="base.res_config_settings_view_form" />
+        <field name="groups_id" eval="[(4, ref('point_of_sale.group_pos_manager'), 0)]"/>
         <field name="arch" type="xml">
             <xpath expr="//div[hasclass('settings')]" position="inside">
                 <field name="pos_selectable_categ_ids" invisible="1"/>
@@ -14,6 +15,7 @@
                 <field name="pos_iface_print_via_proxy" invisible="1"/>
                 <field name="pos_company_has_template" invisible="1"/>
                 <field name="is_default_pricelist_displayed" invisible="1"/>
+                <field name="group_cash_rounding" invisible="1"/>
 
                 <div class="app_settings_block" data-string="Point of sale" string="Point of Sale" data-key="point_of_sale" groups="point_of_sale.group_pos_manager">
                     <div id="pos_header" class="row o_settings_container mb-0 mt-0 ml-0 mw-100"
diff --git a/addons/portal/views/res_config_settings_views.xml b/addons/portal/views/res_config_settings_views.xml
index 51c394b28bf..d456dbc8ad8 100644
--- a/addons/portal/views/res_config_settings_views.xml
+++ b/addons/portal/views/res_config_settings_views.xml
@@ -6,7 +6,7 @@
             <field name="name">res.config.settings.view.form.inherit.portal</field>
             <field name="model">res.config.settings</field>
             <field name="priority" eval="40"/>
-            <field name="inherit_id" ref="base.res_config_settings_view_form"/>
+            <field name="inherit_id" ref="base_setup.res_config_settings_view_form"/>
             <field name="arch" type="xml">
                 <xpath expr="//button[@name=%(base.action_apikeys_admin)d]//ancestor::div[hasclass('o_setting_box')]" position="inside">
                     <div groups="base.group_no_one">
diff --git a/addons/project/views/res_config_settings_views.xml b/addons/project/views/res_config_settings_views.xml
index 7b54e651e2e..4242c2beffb 100644
--- a/addons/project/views/res_config_settings_views.xml
+++ b/addons/project/views/res_config_settings_views.xml
@@ -5,6 +5,7 @@
             <field name="model">res.config.settings</field>
             <field name="priority" eval="50"/>
             <field name="inherit_id" ref="base.res_config_settings_view_form" />
+            <field name="groups_id" eval="[(4, ref('project.group_project_manager'), 0)]"/>
             <field name="arch" type="xml">
             <xpath expr="//div[hasclass('settings')]" position="inside">
                 <div class="app_settings_block" data-string="Project" string="Project" data-key="project" groups="project.group_project_manager">
diff --git a/addons/purchase/views/res_config_settings_views.xml b/addons/purchase/views/res_config_settings_views.xml
index ae98295a2fc..8a24c27f347 100644
--- a/addons/purchase/views/res_config_settings_views.xml
+++ b/addons/purchase/views/res_config_settings_views.xml
@@ -6,6 +6,7 @@
         <field name="model">res.config.settings</field>
         <field name="priority" eval="25"/>
         <field name="inherit_id" ref="base.res_config_settings_view_form"/>
+        <field name="groups_id" eval="[(4, ref('purchase.group_purchase_manager'), 0)]"/>
         <field name="arch" type="xml">
             <xpath expr="//div[hasclass('settings')]" position="inside">
                 <div class="app_settings_block" data-string="Purchase" string="Purchase" data-key="purchase" groups="purchase.group_purchase_manager">
diff --git a/addons/sale/views/res_config_settings_views.xml b/addons/sale/views/res_config_settings_views.xml
index 2b778e70fbe..cce4f730b83 100644
--- a/addons/sale/views/res_config_settings_views.xml
+++ b/addons/sale/views/res_config_settings_views.xml
@@ -5,7 +5,8 @@
         <field name="name">res.config.settings.view.form.inherit.sale</field>
         <field name="model">res.config.settings</field>
         <field name="priority" eval="10"/>
-        <field name="inherit_id" ref="base.res_config_settings_view_form" />
+        <field name="inherit_id" ref="base.res_config_settings_view_form"/>
+        <field name="groups_id" eval="[(4, ref('sales_team.group_sale_manager'), 0)]"/>
         <field name="arch" type="xml">
             <xpath expr="//div[hasclass('settings')]" position="inside">
                 <div class="app_settings_block o_not_app"
diff --git a/addons/sale_project/models/res_config_settings.py b/addons/sale_project/models/res_config_settings.py
index b626c12e17f..de4d32da918 100644
--- a/addons/sale_project/models/res_config_settings.py
+++ b/addons/sale_project/models/res_config_settings.py
@@ -18,10 +18,10 @@ class ResConfigSettings(models.TransientModel):
                 [],
             )
             sale_line_ids = milestone_read_group[0]['sale_line_ids'] if milestone_read_group else []
-            sale_lines = self.env['sale.order.line'].browse(sale_line_ids)
+            sale_lines = self.env['sale.order.line'].sudo().browse(sale_line_ids)
             sale_lines.product_id.service_policy = 'delivered_milestones'
         else:
             product_domain = [('type', '=', 'service'), ('service_type', '=', 'milestones')]
             products = self.env['product.product'].search(product_domain)
             products.service_policy = 'delivered_manual'
-            self.env['sale.order.line'].search([('product_id', 'in', products.ids)]).qty_delivered_method = 'manual'
+            self.env['sale.order.line'].sudo().search([('product_id', 'in', products.ids)]).qty_delivered_method = 'manual'
diff --git a/addons/stock/views/res_config_settings_views.xml b/addons/stock/views/res_config_settings_views.xml
index 2fb1be85d62..bcd17195086 100644
--- a/addons/stock/views/res_config_settings_views.xml
+++ b/addons/stock/views/res_config_settings_views.xml
@@ -6,6 +6,7 @@
             <field name="model">res.config.settings</field>
             <field name="priority" eval="30"/>
             <field name="inherit_id" ref="base.res_config_settings_view_form" />
+            <field name="groups_id" eval="[(4, ref('stock.group_stock_manager'), 0)]"/>
             <field name="arch" type="xml">
                 <xpath expr="//div[hasclass('settings')]" position="inside" >
                     <div class="app_settings_block" data-string="Inventory" string="Inventory" data-key="stock" groups="stock.group_stock_manager">
diff --git a/addons/website/security/website_security.xml b/addons/website/security/website_security.xml
index 566fac8df09..95e55cc6bac 100644
--- a/addons/website/security/website_security.xml
+++ b/addons/website/security/website_security.xml
@@ -23,10 +23,6 @@
         <field name="groups_id" eval="[(4, ref('website.group_website_designer'))]"/>
     </record>
 
-    <record id="base.group_system" model="res.groups">
-        <field name="implied_ids" eval="[(4, ref('website.group_website_designer'))]"/>
-    </record>
-
     <data noupdate="1">
 
     <record id="website_designer_edit_qweb" model="ir.rule">
diff --git a/addons/website/views/res_config_settings_views.xml b/addons/website/views/res_config_settings_views.xml
index 57a40c89a6b..3e946198e4d 100644
--- a/addons/website/views/res_config_settings_views.xml
+++ b/addons/website/views/res_config_settings_views.xml
@@ -1,15 +1,24 @@
 <?xml version="1.0" encoding="utf-8"?>
 <odoo>
+    <record id="res_config_settings_view_form_inherit_auth_signup" model="ir.ui.view">
+        <field name="name">res.config.settings.view.form.inherit.website</field>
+        <field name="model">res.config.settings</field>
+        <field name="inherit_id" ref="auth_signup.res_config_settings_view_form"/>
+        <field name="arch" type="xml">
+            <!-- Remove customer accounts setting from general settings tab -->
+            <!-- It must not be in the view at all to make sure settings can be saved
+                (because auth_signup_uninvited is specified as required) -->
+            <xpath expr="//div[@id='login_documents']" position="replace"></xpath>
+        </field>
+    </record>
+
     <record id="res_config_settings_view_form" model="ir.ui.view">
         <field name="name">res.config.settings.view.form.inherit.website</field>
         <field name="model">res.config.settings</field>
         <field name="priority" eval="20"/>
         <field name="inherit_id" ref="base.res_config_settings_view_form"/>
+        <field name="groups_id" eval="[(4, ref('website.group_website_designer'), 0)]"/>
         <field name="arch" type="xml">
-            <!-- Remove customer accounts setting from general settings tab -->
-            <xpath expr="//div[@id='login_documents']" position="attributes">
-                <attribute name="invisible">1</attribute>
-            </xpath>
             <xpath expr="//div[hasclass('settings')]" position="inside">
                 <div class="app_settings_block" data-string="Website" string="Website" data-key="website" groups="website.group_website_designer">
                     <div class="row o_settings_container mb-0 mt-0 ml-0 mw-100"
diff --git a/addons/website_event_track/views/res_config_settings_view.xml b/addons/website_event_track/views/res_config_settings_view.xml
index e1e3ef4e655..0d9c6ac6e6b 100644
--- a/addons/website_event_track/views/res_config_settings_view.xml
+++ b/addons/website_event_track/views/res_config_settings_view.xml
@@ -4,9 +4,10 @@
         <field name="name">res.config.settings.view.form.inherit.website</field>
         <field name="model">res.config.settings</field>
         <field name="priority" eval="20"/>
-        <field name="inherit_id" ref="base.res_config_settings_view_form"/>
+        <field name="inherit_id" ref="website.res_config_settings_view_form"/>
         <field name="arch" type="xml">
-            <xpath expr="//div[hasclass('settings')]//div[@id='website_settings']" position="inside">
+            <!-- TODO TDE there are two div with website_settings id in the website settings view -->
+            <xpath expr="//div[@id='website_settings']" position="inside">
                 <div class="col-12 col-lg-6 o_setting_box" id="events_app_setting" groups="base.group_no_one">
                     <div class="o_setting_right_pane">
                         <label for="events_app_name" string="Events PWA"/>
diff --git a/addons/website_payment/views/res_config_settings_views.xml b/addons/website_payment/views/res_config_settings_views.xml
index c4809200f54..e2d2c96cbe3 100644
--- a/addons/website_payment/views/res_config_settings_views.xml
+++ b/addons/website_payment/views/res_config_settings_views.xml
@@ -4,7 +4,7 @@
         <field name="name">res.config.settings.view.form.inherit.website</field>
         <field name="model">res.config.settings</field>
         <field name="priority" eval="20"/>
-        <field name="inherit_id" ref="base.res_config_settings_view_form"/>
+        <field name="inherit_id" ref="website.res_config_settings_view_form"/>
         <field name="arch" type="xml">
             <div id="website_info_settings" position="after">
                 <h2>Shop - Payment</h2>
diff --git a/addons/website_payment_authorize/views/res_config_settings_views.xml b/addons/website_payment_authorize/views/res_config_settings_views.xml
index 20c709bfa28..907a495d75e 100644
--- a/addons/website_payment_authorize/views/res_config_settings_views.xml
+++ b/addons/website_payment_authorize/views/res_config_settings_views.xml
@@ -4,7 +4,7 @@
         <field name="name">res.config.settings.view.form.inherit.payment.authorize</field>
         <field name="model">res.config.settings</field>
         <field name="priority" eval="20"/>
-        <field name="inherit_id" ref="base.res_config_settings_view_form"/>
+        <field name="inherit_id" ref="website_payment.res_config_settings_view_form"/>
         <field name="arch" type="xml">
             <div id="paypal_settings" position="before">
                 <div class="col-12 col-lg-6 o_setting_box">
diff --git a/addons/website_sale/views/res_config_settings_views.xml b/addons/website_sale/views/res_config_settings_views.xml
index 41b626ca0ef..a0c2a3e5355 100644
--- a/addons/website_sale/views/res_config_settings_views.xml
+++ b/addons/website_sale/views/res_config_settings_views.xml
@@ -18,15 +18,23 @@
         </field>
     </record>
 
+    <record id="res_config_settings_view_form_inherit_sale" model="ir.ui.view">
+        <field name="name">res.config.settings.view.form.inherit.sale</field>
+        <field name="model">res.config.settings</field>
+        <field name="inherit_id" ref="sale.res_config_settings_view_form"/>
+        <field name="arch" type="xml">
+            <!-- Remove customer accounts setting from sales settings tab -->
+            <!-- It must not be in the view at all to make sure settings can be saved
+                (because auth_signup_uninvited is specified as required) -->
+            <xpath expr="//div[@id='auth_signup_documents']" position="replace"></xpath>
+        </field>
+    </record>
+
     <record id="res_config_settings_view_form" model="ir.ui.view">
         <field name="name">res.config.settings.view.form.inherit.website.sale</field>
         <field name="model">res.config.settings</field>
         <field name="inherit_id" ref="website.res_config_settings_view_form"/>
         <field name="arch" type="xml">
-            <!-- Remove customer accounts setting from sales settings tab -->
-            <xpath expr="//div[@id='auth_signup_documents']" position="attributes">
-                <attribute name="invisible">1</attribute>
-            </xpath>
             <div id="website_info_settings" position="after">
                 <h2>Shop - Checkout Process</h2>
                 <div class="row mt16 o_settings_container" id="website_shop_checkout">
diff --git a/addons/website_slides/security/website_slides_security.xml b/addons/website_slides/security/website_slides_security.xml
index cd789eb8bff..3a3e5d9d23b 100644
--- a/addons/website_slides/security/website_slides_security.xml
+++ b/addons/website_slides/security/website_slides_security.xml
@@ -20,10 +20,6 @@
             <field name="groups_id" eval="[(4,ref('group_website_slides_manager'))]"/>
         </record>
 
-        <record id="base.group_system" model="res.groups">
-            <field name="implied_ids" eval="[(4, ref('group_website_slides_manager'))]"/>
-        </record>
-
         <data noupdate="1">
         <!-- CHANNEL -->
         <record id="rule_slide_channel_global" model="ir.rule">
diff --git a/addons/website_slides/views/res_config_settings_views.xml b/addons/website_slides/views/res_config_settings_views.xml
index a71df327f24..ff640c692c0 100644
--- a/addons/website_slides/views/res_config_settings_views.xml
+++ b/addons/website_slides/views/res_config_settings_views.xml
@@ -4,6 +4,7 @@
         <field name="name">res.config.settings.view.form.inherit.website.slides</field>
         <field name="model">res.config.settings</field>
         <field name="inherit_id" ref="website.res_config_settings_view_form"/>
+        <field name="groups_id" eval="[(4, ref('website_slides.group_website_slides_manager'), 0)]"/>
         <field name="arch" type="xml">
             <xpath expr="//div[@id='website_marketing_automation']" position="after">
                 <div class="col-12 col-lg-6 o_setting_box" id="slides_install_setting">
diff --git a/odoo/addons/base/security/base_groups.xml b/odoo/addons/base/security/base_groups.xml
index 73b2580a54b..cf53bcda031 100644
--- a/odoo/addons/base/security/base_groups.xml
+++ b/odoo/addons/base/security/base_groups.xml
@@ -9,6 +9,7 @@
         -->
         <record model="res.groups" id="group_erp_manager">
             <field name="name">Access Rights</field>
+            <field name="implied_ids" eval="[Command.link(ref('group_user'))]"/>
         </record>
 
         <record model="res.groups" id="group_system">
diff --git a/odoo/addons/base/tests/test_res_config.py b/odoo/addons/base/tests/test_res_config.py
index 552d8759715..fe8cb885dd5 100644
--- a/odoo/addons/base/tests/test_res_config.py
+++ b/odoo/addons/base/tests/test_res_config.py
@@ -1,10 +1,11 @@
 # -*- coding: utf-8 -*-
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
 
+from collections import defaultdict
 import logging
 
-from odoo import exceptions
-from odoo.tests.common import TransactionCase, tagged
+from odoo import exceptions, Command
+from odoo.tests.common import Form, TransactionCase, tagged
 
 _logger = logging.getLogger(__name__)
 
@@ -97,3 +98,86 @@ class TestResConfigExecute(TransactionCase):
         for config_settings in all_config_settings:
             _logger.info("Testing %s" % (config_settings.name))
             self.env[config_settings.name].create({}).execute()
+
+    def test_settings_access(self):
+        """Check that settings user are able to open & save settings
+
+        Also check that user with settings rights + any one of the groups restricting
+        a conditional view inheritance of res.config.settings view is also able to
+        open & save the settings (considering the added conditional content)
+        """
+        ResUsers = self.env['res.users']
+        group_system = self.env.ref('base.group_system')
+        self.settings_view = self.env.ref('base.res_config_settings_view_form')
+        settings_only_user = ResUsers.create({
+            'name': 'Sleepy Joe',
+            'login': 'sleepy',
+            'groups_id': [Command.link(group_system.id)],
+        })
+
+        _logger.info("Testing settings access for group %s", group_system.full_name)
+        forbidden_models = self._test_user_settings_fields_access(settings_only_user)
+        self._test_user_settings_view_save(settings_only_user)
+
+        for model in forbidden_models:
+            _logger.warning("Settings user doesn\'t have read access to the model %s", model)
+
+        settings_view_conditional_groups = self.env['ir.ui.view'].search([
+            ('model', '=', 'res.config.settings'),
+        ]).groups_id
+
+        for group in settings_view_conditional_groups:
+            group_name = group.full_name
+            _logger.info("Testing settings access for group %s", group_name)
+            create_values = {
+                'name': f'Test {group_name}',
+                'login': group_name,
+                'groups_id': [Command.link(group_system.id), Command.link(group.id)]
+            }
+            user = ResUsers.create(create_values)
+            self._test_user_settings_view_save(user)
+            forbidden_models_fields = self._test_user_settings_fields_access(user)
+
+            for model, fields in forbidden_models_fields.items():
+                _logger.warning(
+                    "Settings + %s user doesn\'t have read access to the model %s"
+                    "linked to settings records by the field(s) %s",
+                    group_name, model, ", ".join(str(field) for field in fields)
+                )
+
+    def _test_user_settings_fields_access(self, user):
+        """Verify that settings user are able to create & save settings."""
+        settings = self.env['res.config.settings'].with_user(user).create({})
+
+        # Save the settings
+        settings.set_values()
+
+        # Check user has access to all models of relational fields in view
+        # because the webclient makes a name_get request for all specified records
+        # even if they are not shown to the user.
+        settings_view_arch = self.settings_view.with_user(user)._get_combined_arch()
+        seen_fields = set()
+        for node in settings_view_arch.iterdescendants(tag='field'):
+            seen_fields.add(node.get('name'))
+
+        models_to_check = defaultdict(set)
+        for field_name in seen_fields:
+            field = settings._fields[field_name]
+            if field.relational:
+                models_to_check[field.comodel_name].add(field)
+
+        forbidden_models_fields = defaultdict(set)
+        for model in models_to_check:
+            has_read_access = self.env[model].with_user(user).check_access_rights(
+                'read', raise_exception=False)
+            if not has_read_access:
+                forbidden_models_fields[model] = models_to_check[model]
+
+        return forbidden_models_fields
+
+    def _test_user_settings_view_save(self, user):
+        """Verify that settings user are able to save the settings form."""
+        ResConfigSettings = self.env['res.config.settings'].with_user(user)
+
+        settings_form = Form(ResConfigSettings)
+        settings_form.save()
diff --git a/odoo/addons/test_action_bindings/tests/test_bindings.py b/odoo/addons/test_action_bindings/tests/test_bindings.py
index cb9ba4561ed..e7bdcc66f0b 100644
--- a/odoo/addons/test_action_bindings/tests/test_bindings.py
+++ b/odoo/addons/test_action_bindings/tests/test_bindings.py
@@ -33,7 +33,7 @@ class TestActionBindings(common.TransactionCase):
         )
 
         # add a group on an action, and check that it is not returned
-        group = self.env.ref('base.group_user')
+        group = self.env.ref('base.group_system')
         action2.groups_id += group
         self.env.user.groups_id -= group