[IMP] base: Remove customer and supplier fields from res.partner

Purpose
=======

Fields `customer` and `supplier` on `res.partner`
are mostly used in domains of many2x fields.

Those domains can confuse end users because they don't
see the partner they are looking for; and it's not obvious why.

Some identified problems:

1. It can lead to duplicated partners: the user does not find
   the partner, so he creates a new one.

2. The user imports supplier contacts in the Contacts app, so they
   don't get the `supplier` flag. Then the user wants to make a purchase order,
   and cannot find the new suppliers in the list

3. A user removes the customer flag on a prospect, because they don't think
   it's a customer yet - except now they can't make a quote for that customer...

Specification
=============

Remove the two mentioned fields.

Since fields `customer` and `supplier` have been removed, all partners
are now shown in many2one dropdowns.

But in some cases, not all partners are relevant or some are more likely
to be relevant than others. e.g. when creating a PO, top suppliers have a
higher priority than other partners.

So, adapt the places where those fields were used with the new mechanism to
display the searched the partners, according to the number purchase/sales
orders they made.

TaskID: 2031147

Co-authored-by: Yannick Tivisse <yti@odoo.com>

57 files changed, 59 insertions, 113 deletions

diff --git a/addons/account/models/account_move.py b/addons/account/models/account_move.py
index eb7fccabe6c..569cf3532a7 100644
--- a/addons/account/models/account_move.py
+++ b/addons/account/models/account_move.py
@@ -355,9 +355,6 @@ class AccountMove(models.Model):
         if self.is_sale_document(include_receipts=True):
             if self.env['ir.config_parameter'].sudo().get_param('account.use_invoice_terms'):
                 self.narration = self.company_id.invoice_terms or self.env.company.invoice_terms
-            return {'domain': {'partner_id': [('customer', '=', True)]}}
-        elif self.is_purchase_document(include_receipts=True):
-            return {'domain': {'partner_id': [('supplier', '=', True)]}}
 
     @api.onchange('invoice_line_ids')
     def _onchange_invoice_line_ids(self):
diff --git a/addons/account/models/reconciliation_widget.py b/addons/account/models/reconciliation_widget.py
index 5e49e94e272..50a99f53d05 100644
--- a/addons/account/models/reconciliation_widget.py
+++ b/addons/account/models/reconciliation_widget.py
@@ -704,12 +704,7 @@ class AccountReconciliation(models.AbstractModel):
             'company_id': st_line.company_id.id,
         }
         if st_line.partner_id:
-            if st_line.partner_id.supplier and not st_line.partner_id.customer:
-                data['open_balance_account_id'] = st_line.partner_id.property_account_payable_id.id
-            elif not st_line.partner_id.supplier and st_line.partner_id.customer:
-                data['open_balance_account_id'] = st_line.partner_id.property_account_receivable_id.id
-            else:
-                data['open_balance_account_id'] = amount > 0 and st_line.partner_id.property_account_receivable_id.id or st_line.partner_id.property_account_payable_id.id
+            data['open_balance_account_id'] = amount > 0 and st_line.partner_id.property_account_receivable_id.id or st_line.partner_id.property_account_payable_id.id
 
         return data
 
diff --git a/addons/account/report/account_invoice_report_view.xml b/addons/account/report/account_invoice_report_view.xml
index 479d187b867..3980add37c4 100644
--- a/addons/account/report/account_invoice_report_view.xml
+++ b/addons/account/report/account_invoice_report_view.xml
@@ -101,7 +101,7 @@
         <field name="name">Invoices Analysis</field>
         <field name="res_model">account.invoice.report</field>
         <field name="view_mode">graph,pivot</field>
-        <field name="context">{'search_default_current':1, 'search_default_supplier':1, 'group_by':[], 'group_by_no_leaf':1, 'search_default_year': 1}</field>
+        <field name="context">{'search_default_current':1, 'res_partner_search_mode': 'supplier', 'group_by':[], 'group_by_no_leaf':1, 'search_default_year': 1}</field>
         <field name="search_view_id" ref="view_account_invoice_report_search"/>
         <field name="help">From this report, you can have an overview of the amount invoiced from your vendors. The search tool can also be used to personalise your Invoices reports and so, match this analysis to your needs.</field>
     </record>
@@ -109,7 +109,7 @@
         <field name="name">Invoices Analysis</field>
         <field name="res_model">account.invoice.report</field>
         <field name="view_mode">graph,pivot</field>
-        <field name="context">{'search_default_current':1, 'search_default_customer':1, 'group_by':[], 'group_by_no_leaf':1, 'search_default_year': 1}</field>
+        <field name="context">{'search_default_current':1, 'res_partner_search_mode': 'customer', 'group_by':[], 'group_by_no_leaf':1, 'search_default_year': 1}</field>
         <field name="search_view_id" ref="view_account_invoice_report_search"/>
         <field name="help">From this report, you can have an overview of the amount invoiced to your customers. The search tool can also be used to personalise your Invoices reports and so, match this analysis to your needs.</field>
     </record>
diff --git a/addons/account/static/src/js/reconciliation/reconciliation_model.js b/addons/account/static/src/js/reconciliation/reconciliation_model.js
index 10f7a3dc89e..f7876b6ffd3 100644
--- a/addons/account/static/src/js/reconciliation/reconciliation_model.js
+++ b/addons/account/static/src/js/reconciliation/reconciliation_model.js
@@ -862,17 +862,11 @@ var StatementModel = BasicModel.extend({
         return this._rpc({
                 model: 'res.partner',
                 method: 'read',
-                args: [partner_id, ["property_account_receivable_id", "property_account_payable_id", "customer", "supplier"]],
+                args: [partner_id, ["property_account_receivable_id", "property_account_payable_id"]],
             }).then(function (result) {
                 if (result.length > 0) {
                     var line = self.getLine(handle);
-                    if (result[0]['supplier'] && !result[0]['customer']) {
-                        self.lines[handle].st_line.open_balance_account_id = result[0]['property_account_payable_id'][0];
-                    } else if (!result[0]['supplier'] && result[0]['customer']) {
-                        self.lines[handle].st_line.open_balance_account_id = result[0]['property_account_receivable_id'][0];
-                    } else {
-                        self.lines[handle].st_line.open_balance_account_id = line.balance.amount < 0 ? result[0]['property_account_payable_id'][0] : result[0]['property_account_receivable_id'][0];
-                    }
+                    self.lines[handle].st_line.open_balance_account_id = line.balance.amount < 0 ? result[0]['property_account_payable_id'][0] : result[0]['property_account_receivable_id'][0];
                 }
             });
     },
diff --git a/addons/account/static/src/js/reconciliation/reconciliation_renderer.js b/addons/account/static/src/js/reconciliation/reconciliation_renderer.js
index 8693b2c9d30..312e426f3a3 100644
--- a/addons/account/static/src/js/reconciliation/reconciliation_renderer.js
+++ b/addons/account/static/src/js/reconciliation/reconciliation_renderer.js
@@ -525,7 +525,7 @@ var LineRenderer = Widget.extend(FieldManagerMixin, {
         }
         return this.model.makeRecord('account.bank.statement.line', [field], {
             partner_id: {
-                domain: ["|", ["is_company", "=", true], ["parent_id", "=", false], "|", ["customer", "=", true], ["supplier", "=", true]],
+                domain: ["|", ["is_company", "=", true], ["parent_id", "=", false]],
                 options: {
                     no_open: true
                 }
diff --git a/addons/account/static/tests/reconciliation_tests.js b/addons/account/static/tests/reconciliation_tests.js
index e946400afc3..4d3a20f84fb 100644
--- a/addons/account/static/tests/reconciliation_tests.js
+++ b/addons/account/static/tests/reconciliation_tests.js
@@ -26,23 +26,21 @@ var db = {
             id: {string: "ID", type: 'integer'},
             display_name: {string: "Displayed name", type: 'char'},
             image: {string: "image", type: 'integer'},
-            customer: {string: "customer", type: 'boolean'},
-            supplier: {string: "supplier", type: 'boolean'},
             parent_id: {string: "Parent", type: 'boolean'},
             is_company: {string: "Is company", type: 'boolean'},
             property_account_receivable_id: {string: 'Account receivable', type: 'many2one', relation: 'account.account'},
             property_account_payable_id: {string: 'Account payable', type: 'many2one', relation: 'account.account'},
         },
         records: [
-            {id: 1, display_name: "partner 1", image: 'AAA', customer: true},
-            {id: 2, display_name: "partner 2", image: 'BBB', customer: true},
-            {id: 3, display_name: "partner 3", image: 'CCC', customer: true},
-            {id: 4, display_name: "partner 4", image: 'DDD', customer: true},
-            {id: 8, display_name: "Agrolait", image: 'EEE', customer: true},
-            {id: 12, display_name: "Camptocamp", image: 'FFF', supplier: true, property_account_receivable_id: 287, property_account_payable_id: 287},
+            {id: 1, display_name: "partner 1", image: 'AAA'},
+            {id: 2, display_name: "partner 2", image: 'BBB'},
+            {id: 3, display_name: "partner 3", image: 'CCC'},
+            {id: 4, display_name: "partner 4", image: 'DDD'},
+            {id: 8, display_name: "Agrolait", image: 'EEE'},
+            {id: 12, display_name: "Camptocamp", image: 'FFF', property_account_receivable_id: 287, property_account_payable_id: 287},
             // add more to have 'Search More' option
-            {id: 98, display_name: "partner 98", image: 'YYY', customer: true},
-            {id: 99, display_name: "partner 99", image: 'ZZZ', customer: true},
+            {id: 98, display_name: "partner 98", image: 'YYY'},
+            {id: 99, display_name: "partner 99", image: 'ZZZ'},
         ],
         mark_as_reconciled: function () {
             return Promise.resolve();
diff --git a/addons/account/tests/account_test_no_chart.py b/addons/account/tests/account_test_no_chart.py
index ba145b02d48..28bf7e8807a 100644
--- a/addons/account/tests/account_test_no_chart.py
+++ b/addons/account/tests/account_test_no_chart.py
@@ -41,7 +41,6 @@ class TestAccountNoChartCommon(SavepointCase):
         cls.partner_customer_usd = Partner.create({
             'name': 'Customer from the North',
             'email': 'customer.usd@north.com',
-            'customer': True,
             'property_account_payable_id': cls.account_payable.id,
             'property_account_receivable_id': cls.account_receivable.id,
         })
diff --git a/addons/account/views/account_move_views.xml b/addons/account/views/account_move_views.xml
index 0ea26ac6708..778718e3421 100644
--- a/addons/account/views/account_move_views.xml
+++ b/addons/account/views/account_move_views.xml
@@ -549,10 +549,7 @@
                                 </div>
                                 <field name="partner_id" widget="res_partner_many2one" nolabel="1"
                                        context="{
-                                            'search_default_customer': context.get('type', 'entry') in ('out_invoice', 'out_refund', 'out_receipt'),
-                                            'search_default_supplier': context.get('type', 'entry') in ('in_invoice', 'in_refund', 'in_receipt'),
-                                            'default_customer': context.get('type', 'entry') in ('out_invoice', 'out_refund', 'out_receipt'),
-                                            'default_supplier': context.get('type', 'entry') in ('in_invoice', 'in_refund', 'in_receipt'),
+                                            'res_partner_search_mode': (context.get('type', 'entry') in ('out_invoice', 'out_refund', 'out_receipt') and 'customer') or (context.get('type', 'entry') in ('in_invoice', 'in_refund', 'in_receipt') and 'supplier') or False,
                                             'show_address': 1, 'default_is_company': True, 'show_vat': True}"
                                        options='{"always_reload": True, "no_quick_create": True}'
                                        attrs="{
diff --git a/addons/account/views/account_payment_view.xml b/addons/account/views/account_payment_view.xml
index 2fe80e22cca..430f2316517 100644
--- a/addons/account/views/account_payment_view.xml
+++ b/addons/account/views/account_payment_view.xml
@@ -149,7 +149,7 @@
                             <group name="partner_group" invisible="context.get('active_model') == 'account.move'">
                                 <field name="payment_type" widget="radio"/>
                                 <field name="partner_type" widget="selection" attrs="{'required': [('state', '=', 'draft'), ('payment_type', 'in', ('inbound', 'outbound'))], 'invisible': [('payment_type', 'not in', ('inbound', 'outbound'))]}"/>
-                                <field name="partner_id" attrs="{'required': [('state', '=', 'draft'), ('payment_type', 'in', ('inbound', 'outbound'))], 'invisible': [('payment_type', 'not in', ('inbound', 'outbound'))]}" context="{'default_is_company': True, 'default_supplier': payment_type == 'outbound', 'default_customer': payment_type == 'inbound'}"/>
+                                <field name="partner_id" attrs="{'required': [('state', '=', 'draft'), ('payment_type', 'in', ('inbound', 'outbound'))], 'invisible': [('payment_type', 'not in', ('inbound', 'outbound'))]}" context="{'default_is_company': True}"/>
                             </group>
                             <group name="right_column">
                                 <field name="communication"/>
diff --git a/addons/account/views/account_view.xml b/addons/account/views/account_view.xml
index 77e10a8529f..8abe388a28c 100644
--- a/addons/account/views/account_view.xml
+++ b/addons/account/views/account_view.xml
@@ -579,8 +579,7 @@ action = model.setting_init_bank_account_action()
                                     <field name="date" attrs="{'readonly' : [('journal_entry_ids', '!=', [])] }"/>
                                     <field name="name" attrs="{'readonly' : [('journal_entry_ids', '!=', [])] }"/>
                                     <field name="partner_id" domain="['|',('parent_id','=',False),('is_company','=',True)]"
-                                         context="{'default_supplier': 1}"
-                                         attrs="{'readonly' : [('journal_entry_ids', '!=', [])] }"/>
+                                        attrs="{'readonly' : [('journal_entry_ids', '!=', [])] }"/>
                                     <field name="ref" attrs="{'readonly' : [('journal_entry_ids', '!=', [])] }" groups="base.group_no_one"/>
                                     <field name="amount" attrs="{'readonly' : [('journal_entry_ids', '!=', [])] }"/>
                                     <field name="journal_currency_id" invisible="1"/>
diff --git a/addons/account/views/partner_view.xml b/addons/account/views/partner_view.xml
index 0307bb43576..ffe487836f7 100644
--- a/addons/account/views/partner_view.xml
+++ b/addons/account/views/partner_view.xml
@@ -122,7 +122,7 @@
             <field name="arch" type="xml">
                 <div name="button_box" position="inside">
                     <button type="object" class="oe_stat_button" icon="fa-pencil-square-o" name="action_view_partner_invoices"
-                        attrs="{'invisible': [('customer', '=', False)]}" context="{'default_partner_id': active_id}">
+                        context="{'default_partner_id': active_id}">
                         <div class="o_form_field o_stat_info">
                             <span class="o_stat_value">
                                 <field name="total_invoiced" widget='monetary' options="{'currency_field': 'currency_id'}"/>
@@ -220,10 +220,10 @@
                     </group>
                 </xpath>
                 <group name="sale" position="inside">
-                    <field string="Payment Terms" name="property_payment_term_id" widget="selection" groups="account.group_account_invoice" attrs="{'invisible': [('customer','=', False)]}"/>
+                    <field string="Payment Terms" name="property_payment_term_id" widget="selection" groups="account.group_account_invoice"/>
                 </group>
                 <group name="purchase" position="inside">
-                    <field string="Payment Terms" name="property_supplier_payment_term_id" widget="selection" groups="account.group_account_invoice" attrs="{'invisible': [('supplier','=', False)]}"/>
+                    <field string="Payment Terms" name="property_supplier_payment_term_id" widget="selection" groups="account.group_account_invoice"/>
                 </group>
             </field>
         </record>
diff --git a/addons/auth_signup/models/res_users.py b/addons/auth_signup/models/res_users.py
index 6564129253a..11df8c34116 100644
--- a/addons/auth_signup/models/res_users.py
+++ b/addons/auth_signup/models/res_users.py
@@ -144,7 +144,6 @@ class ResUsers(models.Model):
 
         # create a copy of the template user (attached to a specific partner_id if given)
         values['active'] = True
-        values['customer'] = True
         try:
             with self.env.cr.savepoint():
                 return template_user.with_context(no_reset_password=True).copy(values)
diff --git a/addons/base_automation/data/base_automation_demo.xml b/addons/base_automation/data/base_automation_demo.xml
index 7ddc3a74581..6563efede04 100644
--- a/addons/base_automation/data/base_automation_demo.xml
+++ b/addons/base_automation/data/base_automation_demo.xml
@@ -32,7 +32,7 @@
             <field name="trigger">on_write</field>
             <field name="active" eval="True"/>
             <field name="model_id" ref="base_automation.model_base_automation_lead_test"/>
-            <field name="filter_domain">[('customer', '=', True)]</field>
+            <field name="filter_domain">[('employee', '=', True)]</field>
         </record>
 
         <record id="test_rule_recursive" model="base.automation">
diff --git a/addons/base_automation/tests/test_base_automation.py b/addons/base_automation/tests/test_base_automation.py
index 97fcb2d1827..a97fe310048 100644
--- a/addons/base_automation/tests/test_base_automation.py
+++ b/addons/base_automation/tests/test_base_automation.py
@@ -84,13 +84,13 @@ class base_automation_test(common.TransactionCase):
         change on another model.
         """
         partner = self.env.ref('base.res_partner_1')
-        partner.write({'customer': False})
+        partner.write({'employee': False})
         lead = self.create_lead(state='open', partner_id=partner.id)
-        self.assertFalse(lead.customer, "Customer field should updated to False")
+        self.assertFalse(lead.employee, "Customer field should updated to False")
         self.assertEqual(lead.user_id, self.user_root, "Responsible should not change on creation of Lead with state from 'draft' to 'open'.")
         # change partner, recompute on lead should trigger the rule
-        partner.write({'customer': True})
-        self.assertTrue(lead.customer, "Customer field should updated to True")
+        partner.write({'employee': True})
+        self.assertTrue(lead.employee, "Customer field should updated to True")
         self.assertEqual(lead.user_id, self.user_demo, "Responsible should be change on write of Lead when Customer becomes True.")
 
     def test_11_recomputed_field(self):
diff --git a/addons/base_automation/tests/test_models.py b/addons/base_automation/tests/test_models.py
index 3fbba42de03..38640270960 100644
--- a/addons/base_automation/tests/test_models.py
+++ b/addons/base_automation/tests/test_models.py
@@ -17,7 +17,7 @@ class LeadTest(models.Model):
     active = fields.Boolean(default=True)
     partner_id = fields.Many2one('res.partner', string='Partner')
     date_action_last = fields.Datetime(string='Last Action', readonly=True)
-    customer = fields.Boolean(related='partner_id.customer', readonly=True, store=True)
+    employee = fields.Boolean(related='partner_id.employee', readonly=True, store=True)
     line_ids = fields.One2many('base.automation.line.test', 'lead_id')
 
     priority = fields.Boolean()
diff --git a/addons/crm/views/crm_lead_views.xml b/addons/crm/views/crm_lead_views.xml
index afd98c695ca..2cfeb26fd0f 100644
--- a/addons/crm/views/crm_lead_views.xml
+++ b/addons/crm/views/crm_lead_views.xml
@@ -279,7 +279,7 @@
                         <group>
                             <group>
                                 <field name="name" string="Opportunity Title" placeholder="e.g. Customer Deal"/>
-                                <field name="partner_id" widget="res_partner_many2one" domain="[('customer', '=', True)]" context="{'search_default_customer': 1, 'show_vat': True}"/>
+                                <field name="partner_id" widget="res_partner_many2one" context="{'res_partner_search_mode': 'customer', 'show_vat': True}"/>
                                 <field name="partner_name" invisible="1"/>
                                 <field name="street" invisible="1"/>
                                 <field name="street2" invisible="1"/>
@@ -336,7 +336,7 @@
                 <form>
                     <group>
                         <field name="name"/>
-                        <field name="partner_id" widget="res_partner_many2one" domain="[('customer', '=', True)]" context="{'search_default_customer': 1, 'show_vat': True}"/>
+                        <field name="partner_id" widget="res_partner_many2one" context="{'res_partner_search_mode': 'customer', 'show_vat': True}"/>
                         <field name="planned_revenue" widget="monetary" options="{'currency_field': 'company_currency'}"/>
                         <field name="company_currency" invisible="1"/>
                         <field name="company_id" invisible="1"/>
@@ -565,8 +565,8 @@
                             <group>
                                 <field name="partner_id"
                                     widget="res_partner_many2one"
-                                    string="Customer" domain="[('customer', '=', True)]"
-                                    context="{'search_default_customer': 1,
+                                    string="Customer"
+                                    context="{'res_partner_search_mode': 'customer',
                                         'default_name': contact_name or partner_name,
                                         'default_street': street,
                                         'default_is_company': contact_name == False,
diff --git a/addons/crm/views/res_partner_views.xml b/addons/crm/views/res_partner_views.xml
index 4071c35e60b..1ddb0e514b4 100644
--- a/addons/crm/views/res_partner_views.xml
+++ b/addons/crm/views/res_partner_views.xml
@@ -91,7 +91,6 @@
                 <data>
                     <div name="button_box" position="inside">
                         <button class="oe_stat_button o_res_partner_tip_opp" type="action"
-                            attrs="{'invisible': [('customer', '=', False)]}"
                             name="%(crm.crm_lead_opportunities)d"
                             icon="fa-star"
                             groups="sales_team.group_sale_salesman"
diff --git a/addons/crm/wizard/crm_lead_to_opportunity_views.xml b/addons/crm/wizard/crm_lead_to_opportunity_views.xml
index f0f9aa7f17a..aeab3adc26e 100644
--- a/addons/crm/wizard/crm_lead_to_opportunity_views.xml
+++ b/addons/crm/wizard/crm_lead_to_opportunity_views.xml
@@ -32,7 +32,7 @@
                     <group name="action" attrs="{'invisible': [('name', '!=', 'convert')]}" string="Customer" col="1">
                         <field name="action" nolabel="1" widget="radio"/>
                         <group col="2">
-                            <field name="partner_id" widget="res_partner_many2one" domain="[('customer', '=', True)]" context="{'search_default_customer': 1, 'show_vat': True}" attrs="{'required': [('action', '=', 'exist')], 'invisible':[('action','!=','exist')]}"/>
+                            <field name="partner_id" widget="res_partner_many2one" context="{'res_partner_search_mode': 'customer', 'show_vat': True}" attrs="{'required': [('action', '=', 'exist')], 'invisible':[('action','!=','exist')]}"/>
                         </group>
                     </group>
                     <footer>
diff --git a/addons/delivery/views/partner_view.xml b/addons/delivery/views/partner_view.xml
index 3ca062af12f..a598514f170 100644
--- a/addons/delivery/views/partner_view.xml
+++ b/addons/delivery/views/partner_view.xml
@@ -7,7 +7,7 @@
             <field name="inherit_id" ref="base.view_partner_form" />
             <field name="arch" type="xml">
                 <xpath expr="//page[@name='sales_purchases']//field[@name='user_id']" position="after">
-                    <field name="property_delivery_carrier_id"  attrs="{'invisible': [('customer','=', False)]}"/>
+                    <field name="property_delivery_carrier_id"/>
                 </xpath>
             </field>
         </record>
diff --git a/addons/fleet/models/fleet_vehicle_cost.py b/addons/fleet/models/fleet_vehicle_cost.py
index 5ddfd92cf90..9cf2c2dee94 100644
--- a/addons/fleet/models/fleet_vehicle_cost.py
+++ b/addons/fleet/models/fleet_vehicle_cost.py
@@ -308,9 +308,9 @@ class FleetVehicleLogFuel(models.Model):
 
     liter = fields.Float()
     price_per_liter = fields.Float()
-    purchaser_id = fields.Many2one('res.partner', 'Purchaser', domain="['|',('customer','=',True),('employee','=',True)]")
+    purchaser_id = fields.Many2one('res.partner', 'Purchaser')
     inv_ref = fields.Char('Invoice Reference', size=64)
-    vendor_id = fields.Many2one('res.partner', 'Vendor', domain="[('supplier','=',True)]")
+    vendor_id = fields.Many2one('res.partner', 'Vendor')
     notes = fields.Text()
     cost_id = fields.Many2one('fleet.vehicle.cost', 'Cost', required=True, ondelete='cascade')
     # we need to keep this field as a related with store=True because the graph view doesn't support
@@ -360,9 +360,9 @@ class FleetVehicleLogServices(models.Model):
         })
         return res
 
-    purchaser_id = fields.Many2one('res.partner', 'Purchaser', domain="['|',('customer','=',True),('employee','=',True)]")
+    purchaser_id = fields.Many2one('res.partner', 'Purchaser')
     inv_ref = fields.Char('Invoice Reference')
-    vendor_id = fields.Many2one('res.partner', 'Vendor', domain="[('supplier','=',True)]")
+    vendor_id = fields.Many2one('res.partner', 'Vendor')
     # we need to keep this field as a related with store=True because the graph view doesn't support
     # (1) to address fields from inherited table and (2) fields that aren't stored in database
     cost_amount = fields.Float(related='cost_id.amount', string='Amount', store=True, readonly=False)
diff --git a/addons/fleet/views/fleet_vehicle_cost_views.xml b/addons/fleet/views/fleet_vehicle_cost_views.xml
index 226c2baa744..a21159c3611 100644
--- a/addons/fleet/views/fleet_vehicle_cost_views.xml
+++ b/addons/fleet/views/fleet_vehicle_cost_views.xml
@@ -187,7 +187,7 @@
                             <field name="active" invisible="1"/>
                             <field name="ins_ref"/>
                             <field name="cost_subtype_id" required="1" domain="['|',('category','=','contract'),('category','=','both')]"/>
-                            <field name="insurer_id" context="{'default_supplier': True}"/>
+                            <field name="insurer_id"/>
                             <field name="user_id"/>
                         </group>
                         <group string="Vehicle Informations">
@@ -425,7 +425,7 @@
                             <field name="date" />
                             <field name="purchaser_id" />
                             <field name="inv_ref" />
-                            <field name="vendor_id" context="{'default_supplier': True}"/>
+                            <field name="vendor_id"/>
                         </group>
                     </group>
                     <field name="notes" placeholder="Write here any other information"/>
@@ -549,7 +549,7 @@
                         <group string="Additional Details">
                             <field name="date" />
                             <field name="purchaser_id" />
-                            <field name="vendor_id" context="{'default_supplier': True}"/>
+                            <field name="vendor_id"/>
                             <field name="inv_ref" />
                         </group>
                     </group>
diff --git a/addons/google_calendar/models/google_calendar.py b/addons/google_calendar/models/google_calendar.py
index 36b880adbae..f354e551212 100644
--- a/addons/google_calendar/models/google_calendar.py
+++ b/addons/google_calendar/models/google_calendar.py
@@ -448,7 +448,6 @@ class GoogleCalendar(models.AbstractModel):
                 if not attendee:
                     data = {
                         'email': partner_email,
-                        'customer': False,
                         'name': google_attendee.get("displayName", False) or partner_email
                     }
                     attendee = ResPartner.create(data)
diff --git a/addons/google_drive/data/google_drive_demo.xml b/addons/google_drive/data/google_drive_demo.xml
index 59bbbaed87c..d3bab5d7389 100644
--- a/addons/google_drive/data/google_drive_demo.xml
+++ b/addons/google_drive/data/google_drive_demo.xml
@@ -6,7 +6,6 @@
         <record id="filter_partner" model="ir.filters">
             <field name="name">Customer</field>
             <field name="model_id">res.partner</field>
-            <field name="domain">[['customer', '=', 1]]</field>
             <field name="user_id" eval="False" />
         </record>
 
diff --git a/addons/hr_expense/data/hr_expense_demo.xml b/addons/hr_expense/data/hr_expense_demo.xml
index 0a171e015a7..57ec21bda80 100644
--- a/addons/hr_expense/data/hr_expense_demo.xml
+++ b/addons/hr_expense/data/hr_expense_demo.xml
@@ -17,7 +17,6 @@
         <record id="res_partner_address_fp" model="res.partner">
             <field name="name">Pieter Parter's Farm</field>
             <field name="parent_id" eval="ref('base.partner_root')"/>
-            <field name="supplier">1</field>
             <field name="street">Chaussée de Namur, 40</field>
             <field name="zip">1367</field>
             <field name="city">Grand-Rosière-Hottomont</field>
diff --git a/addons/hr_expense/wizard/hr_expense_sheet_register_payment.xml b/addons/hr_expense/wizard/hr_expense_sheet_register_payment.xml
index d1cab98e797..df376a52d2f 100644
--- a/addons/hr_expense/wizard/hr_expense_sheet_register_payment.xml
+++ b/addons/hr_expense/wizard/hr_expense_sheet_register_payment.xml
@@ -12,7 +12,7 @@
                         </div>
                         <group>
                             <group>
-                                <field name="partner_id" required="1" context="{'default_is_company': True, 'default_supplier': True}"/>
+                                <field name="partner_id" required="1" context="{'default_is_company': True}"/>
                                 <field name="journal_id" widget="selection"/>
                                 <field name="hide_payment_method" invisible="1"/>
                                 <field name="payment_method_id" widget="radio" attrs="{'invisible': [('hide_payment_method', '=', True)]}"/>
diff --git a/addons/hr_timesheet/tests/test_timesheet.py b/addons/hr_timesheet/tests/test_timesheet.py
index 1a7dbee1509..c2bfab9e8bd 100644
--- a/addons/hr_timesheet/tests/test_timesheet.py
+++ b/addons/hr_timesheet/tests/test_timesheet.py
@@ -14,7 +14,6 @@ class TestCommonTimesheet(TransactionCase):
         self.partner = self.env['res.partner'].create({
             'name': 'Customer Task',
             'email': 'customer@task.com',
-            'customer': True,
         })
 
         self.analytic_account = self.env['account.analytic.account'].create({
diff --git a/addons/l10n_in/data/res_partner_demo.xml b/addons/l10n_in/data/res_partner_demo.xml
index 962919e460c..9876146414e 100644
--- a/addons/l10n_in/data/res_partner_demo.xml
+++ b/addons/l10n_in/data/res_partner_demo.xml
@@ -23,7 +23,6 @@
     <record id="res_partner_registered_customer" model="res.partner">
         <field name="name">Registered Customer</field>
         <field eval="[(6, 0, [ref('l10n_in.res_partner_category_registered')])]" name="category_id"/>
-        <field name="customer">1</field>
         <field name="is_company">1</field>
         <field name="street">201, Second Floor, IT Tower 4</field>
         <field name="street2">InfoCity Gate - 1, Infocity</field>
@@ -62,8 +61,6 @@
     <record id="res_partner_registered_supplier" model="res.partner">
         <field name="name">Registered Supplier</field>
         <field eval="[(6, 0, [ref('l10n_in.res_partner_category_registered')])]" name="category_id"/>
-        <field name="customer">0</field>
-        <field name="supplier">1</field>
         <field name="is_company">1</field>
         <field name="street">201, Second Floor, IT Tower 4</field>
         <field name="street2">InfoCity Gate - 1, Infocity</field>
@@ -78,8 +75,6 @@
     <record id="res_partner_unregistered_supplier" model="res.partner">
         <field name="name">Unregistered Supplier</field>
         <field eval="[(6, 0, [ref('l10n_in.res_partner_category_unregistered')])]" name="category_id"/>
-        <field name="customer">0</field>
-        <field name="supplier">1</field>
         <field name="street">B105, yogeshwar Tower</field>
         <field name="city">Veraval</field>
         <field name="zip">362266</field>
@@ -92,8 +87,6 @@
         <field name="name">Reseller(E-Commerce)</field>
         <field eval="[(6, 0, [ref('l10n_in.res_partner_category_reseller'),
             ref('l10n_in.res_partner_category_registered')])]" name="category_id"/>
-        <field name="customer">0</field>
-        <field name="supplier">0</field>
         <field name="street">4/001 Ground Floor, 16th Main Rd,</field>
         <field name="city">Bengaluru</field>
         <field name="zip">560001</field>
diff --git a/addons/maintenance/models/maintenance.py b/addons/maintenance/models/maintenance.py
index 73a30347399..f321cc21ab7 100644
--- a/addons/maintenance/models/maintenance.py
+++ b/addons/maintenance/models/maintenance.py
@@ -124,7 +124,7 @@ class MaintenanceEquipment(models.Model):
     owner_user_id = fields.Many2one('res.users', string='Owner', tracking=True)
     category_id = fields.Many2one('maintenance.equipment.category', string='Equipment Category',
                                   tracking=True, group_expand='_read_group_category_ids')
-    partner_id = fields.Many2one('res.partner', string='Vendor', domain="[('supplier', '=', 1)]")
+    partner_id = fields.Many2one('res.partner', string='Vendor')
     partner_ref = fields.Char('Vendor Reference')
     location = fields.Char('Location')
     model = fields.Char('Model')
diff --git a/addons/maintenance/views/maintenance_views.xml b/addons/maintenance/views/maintenance_views.xml
index 499bf05693d..204a50adc56 100644
--- a/addons/maintenance/views/maintenance_views.xml
+++ b/addons/maintenance/views/maintenance_views.xml
@@ -368,7 +368,7 @@
                         <page string="Product Information">
                             <group>
                                 <group>
-                                    <field name="partner_id" context="{'default_supplier': True, 'default_customer': False}"/>
+                                    <field name="partner_id"/>
                                     <field name="partner_ref"/>
                                     <field name="model"/>
                                     <field name="serial_no"/>
diff --git a/addons/mass_mailing/models/mailing.py b/addons/mass_mailing/models/mailing.py
index 7817237818e..ec8731dd2de 100644
--- a/addons/mass_mailing/models/mailing.py
+++ b/addons/mass_mailing/models/mailing.py
@@ -354,8 +354,6 @@ class MassMailing(models.Model):
                     mailing_domain.append(('list_ids', 'in', self.contact_list_ids.ids))
                 else:
                     mailing_domain.append((0, '=', 1))
-            elif self.mailing_model_name == 'res.partner':
-                mailing_domain.append(('customer', '=', True))
             elif 'opt_out' in self.env[self.mailing_model_name]._fields and not self.mailing_domain:
                 mailing_domain.append(('opt_out', '=', False))
         else:
diff --git a/addons/membership/views/partner_views.xml b/addons/membership/views/partner_views.xml
index cd4feefb6d9..d4c5aea3396 100644
--- a/addons/membership/views/partner_views.xml
+++ b/addons/membership/views/partner_views.xml
@@ -29,9 +29,6 @@
                     <field name="category_id"/>
                     <field name="membership_start" invisible="1"/>
                     <field name="membership_stop" string="End Membership Date"/>
-                    <filter string="Customers" name="customer" domain="[('customer','=',True)]"/>
-                    <separator/>
-                    <filter string="Vendors" name="supplier" domain="[('supplier','=',True)]"/>
                     <separator/>
                     <filter name="all_non_members" domain="[('membership_state', 'in', ['none','canceled','old','waiting'])]" string="All non Members" help="None/Canceled/Old/Waiting"/>
                     <filter name="all_members" domain="[('membership_state', 'in', ['invoiced','paid','free'])]" string="All Members" help="Invoiced/Paid/Free"/>
diff --git a/addons/mrp/tests/test_stock.py b/addons/mrp/tests/test_stock.py
index 6f5f8c130cf..14b2e28e7b2 100644
--- a/addons/mrp/tests/test_stock.py
+++ b/addons/mrp/tests/test_stock.py
@@ -305,8 +305,6 @@ class TestKitPicking(common.TestMrpCommon):
         # We create an 'immediate transfer' receipt for x3 kit_parent
         self.test_partner = self.env['res.partner'].create({
             'name': 'Notthat Guyagain',
-            'supplier': True,
-            'customer': True,
         })
         self.test_supplier = self.env['stock.location'].create({
             'name': 'supplier',
diff --git a/addons/point_of_sale/static/src/js/models.js b/addons/point_of_sale/static/src/js/models.js
index b9d539c8643..e24a5d7841b 100644
--- a/addons/point_of_sale/static/src/js/models.js
+++ b/addons/point_of_sale/static/src/js/models.js
@@ -210,7 +210,6 @@ exports.PosModel = Backbone.Model.extend({
         fields: ['name','street','city','state_id','country_id','vat',
                  'phone','zip','mobile','email','barcode','write_date',
                  'property_account_position_id','property_product_pricelist'],
-        domain: [['customer','=',true]],
         loaded: function(self,partners){
             self.partners = partners;
             self.db.add_partners(partners);
@@ -587,7 +586,7 @@ exports.PosModel = Backbone.Model.extend({
     },
 
     prepare_new_partners_domain: function(){
-        return [['customer','=',true], ['write_date','>', this.db.get_partner_write_date()]];
+        return [['write_date','>', this.db.get_partner_write_date()]];
     },
 
     // reload the list of partner, returns as a promise that resolves if there were
diff --git a/addons/point_of_sale/views/pos_order_view.xml b/addons/point_of_sale/views/pos_order_view.xml
index 21a4d9e3fbe..7ce67d79d3f 100644
--- a/addons/point_of_sale/views/pos_order_view.xml
+++ b/addons/point_of_sale/views/pos_order_view.xml
@@ -28,7 +28,7 @@
                     <field name="date_order"/>
                     <field name="session_id" />
                     <field string="User" name="user_id"/>
-                    <field name="partner_id" domain="[('customer', '=', True)]" context="{'search_default_customer':1}" attrs="{'readonly': [('state','=','invoiced')]}"/>
+                    <field name="partner_id" context="{'res_partner_search_mode': 'customer'}" attrs="{'readonly': [('state','=','invoiced')]}"/>
                     <field name="fiscal_position_id" options="{'no_create': True}"/>
                     <field name="invoice_group" invisible="1"/>
                 </group>
diff --git a/addons/point_of_sale/views/res_partner_view.xml b/addons/point_of_sale/views/res_partner_view.xml
index 5528bf1fe64..0da6074cf83 100644
--- a/addons/point_of_sale/views/res_partner_view.xml
+++ b/addons/point_of_sale/views/res_partner_view.xml
@@ -10,7 +10,7 @@
                 <div name="button_box" position="inside">
                     <button class="oe_stat_button" type="action" name="%(point_of_sale.action_pos_pos_form)d" 
                         context="{'search_default_partner_id': active_id,'default_partner_id': active_id}"
-                        attrs="{'invisible': ['|', ('customer', '=', False), ('pos_order_count', '=', 0)]}"
+                        attrs="{'invisible': [('pos_order_count', '=', 0)]}"
                         icon="fa-shopping-bag">
                         <field string="PoS Orders" name="pos_order_count" widget="statinfo"/>
                     </button>
diff --git a/addons/product/models/product.py b/addons/product/models/product.py
index 5c8474a09e3..cdb4a74a498 100644
--- a/addons/product/models/product.py
+++ b/addons/product/models/product.py
@@ -767,7 +767,7 @@ class SupplierInfo(models.Model):
 
     name = fields.Many2one(
         'res.partner', 'Vendor',
-        domain=[('supplier', '=', True)], ondelete='cascade', required=True,
+        ondelete='cascade', required=True,
         help="Vendor of this product")
     product_name = fields.Char(
         'Vendor Product Name',
diff --git a/addons/product/views/product_views.xml b/addons/product/views/product_views.xml
index fe533e325bf..5a134ceb6c2 100644
--- a/addons/product/views/product_views.xml
+++ b/addons/product/views/product_views.xml
@@ -630,7 +630,7 @@
                     <group>
                         <group name="vendor" string="Vendor">
                             <field name="product_variant_count" invisible="1"/>
-                            <field name="name" context="{'default_customer': 0, 'search_default_supplier': 1, 'default_supplier': 1}"/>
+                            <field name="name" context="{'res_partner_search_mode': 'supplier'}"/>
                             <field name="product_name"/>
                             <field name="product_code"/>
                             <field name="product_id" groups="product.group_product_variant" domain="[('product_tmpl_id', '=', product_tmpl_id)]" options="{'no_create_edit': True}"/>
diff --git a/addons/product_margin/tests/test_product_margin.py b/addons/product_margin/tests/test_product_margin.py
index 9626b47bb6d..0e950a77b17 100644
--- a/addons/product_margin/tests/test_product_margin.py
+++ b/addons/product_margin/tests/test_product_margin.py
@@ -29,8 +29,8 @@ class TestProductMargin(common.TransactionCase):
                            get_resource_path('account', 'test', 'account_minimal_test.xml'),
                            {}, 'init', False, 'test', self.registry._assertion_report)
 
-        supplier = self.env['res.partner'].create({'name': 'Supplier', 'supplier': True})
-        customer = self.env['res.partner'].create({'name': 'Customer', 'customer': True})
+        supplier = self.env['res.partner'].create({'name': 'Supplier'})
+        customer = self.env['res.partner'].create({'name': 'Customer'})
         ipad = self.env.ref("product.product_product_4")
 
         # Create supplier invoice and customer invoice to test product margin.
diff --git a/addons/purchase/views/purchase_views.xml b/addons/purchase/views/purchase_views.xml
index 4db8dab2043..99f237d889b 100644
--- a/addons/purchase/views/purchase_views.xml
+++ b/addons/purchase/views/purchase_views.xml
@@ -166,7 +166,7 @@
                     </div>
                     <group>
                         <group>
-                            <field name="partner_id" widget="res_partner_many2one" context="{'search_default_supplier':1, 'default_supplier':1, 'default_customer':0, 'show_vat': True}" domain="[('supplier','=',True)]"
+                            <field name="partner_id" widget="res_partner_many2one" context="{'res_partner_search_mode': 'supplier', 'show_vat': True}"
                                 placeholder="Name, TIN, Email, or Reference"
                             />
                             <field name="partner_ref"/>
diff --git a/addons/purchase/views/res_partner_views.xml b/addons/purchase/views/res_partner_views.xml
index 64da2745715..58acf001c03 100644
--- a/addons/purchase/views/res_partner_views.xml
+++ b/addons/purchase/views/res_partner_views.xml
@@ -74,7 +74,7 @@
                 <div name="button_box" position="inside">
                     <button class="oe_stat_button" name="%(purchase.act_res_partner_2_purchase_order)d" type="action"
                         groups="purchase.group_purchase_user"
-                        attrs="{'invisible': [('supplier', '=', False)]}" icon="fa-shopping-cart">
+                        icon="fa-shopping-cart">
                         <field string="Purchases" name="purchase_order_count" widget="statinfo"/>
                     </button>
                 </div>
@@ -98,7 +98,7 @@
             <field name="arch" type="xml">
                 <div name="button_box" position="inside">
                     <button class="oe_stat_button" name="%(purchase.act_res_partner_2_supplier_invoices)d" type="action"
-                        attrs="{'invisible': [('supplier', '=', False)]}" icon="fa-pencil-square-o" help="Vendor Bills">
+                        icon="fa-pencil-square-o" help="Vendor Bills">
                         <field string="Vendor Bills" name="supplier_invoice_count" widget="statinfo"/>
                     </button>
                 </div>
diff --git a/addons/purchase_requisition/views/purchase_requisition_views.xml b/addons/purchase_requisition/views/purchase_requisition_views.xml
index 0308949a4bb..8ef7677c1ce 100644
--- a/addons/purchase_requisition/views/purchase_requisition_views.xml
+++ b/addons/purchase_requisition/views/purchase_requisition_views.xml
@@ -148,7 +148,7 @@
                         <field name="is_quantity_copy" invisible='1'/>
                         <field name="user_id" attrs="{'readonly': [('state','not in',('draft','in_progress','open'))]}"/>
                         <field name="type_id" attrs="{'readonly': [('state','!=','draft')]}" widget="selection"/>
-                        <field name="vendor_id" context="{'search_default_supplier':1, 'default_supplier':1, 'default_customer':0}" domain="[('supplier','=',True)]" attrs="{'required': [('is_quantity_copy', '=', 'none')], 'readonly': [('state', 'in', ['ongoing','done'])]}"/>
+                        <field name="vendor_id" context="{'res_partner_search_mode': 'supplier'}" attrs="{'required': [('is_quantity_copy', '=', 'none')], 'readonly': [('state', 'in', ['ongoing','done'])]}"/>
                         <field name="currency_id" groups="base.group_multi_currency"/>
                     </group>
                     <group>
diff --git a/addons/purchase_requisition/views/purchase_views.xml b/addons/purchase_requisition/views/purchase_views.xml
index 2ef157538e6..1a0c99b6f8c 100644
--- a/addons/purchase_requisition/views/purchase_views.xml
+++ b/addons/purchase_requisition/views/purchase_views.xml
@@ -8,7 +8,7 @@
         <field name="arch" type="xml">
             <field name="partner_id" position="replace">
                 <field name="is_quantity_copy" invisible="1"/>
-                <field name="partner_id" context="{'search_default_supplier':1, 'default_supplier':1, 'default_customer':0}" domain="[('supplier','=',True)]" attrs="{'readonly': ['|', ('is_quantity_copy', '=', 'none'), ('state', 'in', ['purchase', 'done', 'cancel'])]}" force_save="1"/>
+                <field name="partner_id" context="{'res_partner_search_mode': 'supplier'}" attrs="{'readonly': ['|', ('is_quantity_copy', '=', 'none'), ('state', 'in', ['purchase', 'done', 'cancel'])]}" force_save="1"/>
                 </field>
                 <field name="partner_ref" position="after">
                 <field name="requisition_id" domain="[('state', 'in', ('in_progress', 'open', 'ongoing')), ('vendor_id', 'in', (partner_id, False))]"/>
diff --git a/addons/purchase_stock/tests/test_replenish_wizard.py b/addons/purchase_stock/tests/test_replenish_wizard.py
index 08d4d78310f..08bb1f998e3 100644
--- a/addons/purchase_stock/tests/test_replenish_wizard.py
+++ b/addons/purchase_stock/tests/test_replenish_wizard.py
@@ -6,7 +6,7 @@ from odoo.addons.stock.tests.common import TestStockCommon
 class TestReplenishWizard(TestStockCommon):
     def setUp(self):
         super(TestReplenishWizard, self).setUp()
-        self.vendor = self.env['res.partner'].create(dict(name='The Replenisher', supplier=True))
+        self.vendor = self.env['res.partner'].create(dict(name='The Replenisher'))
         self.product1_price = 500
 
         # Create a supplier info witch the previous vendor
diff --git a/addons/sale/views/res_partner_views.xml b/addons/sale/views/res_partner_views.xml
index d8508ec340d..f7dd6257c69 100644
--- a/addons/sale/views/res_partner_views.xml
+++ b/addons/sale/views/res_partner_views.xml
@@ -42,7 +42,6 @@
                 <div name="button_box" position="inside">
                     <button class="oe_stat_button" type="action" name="%(sale.act_res_partner_2_sale_order)d" 
                         groups="sales_team.group_sale_salesman"
-                        attrs="{'invisible': [('customer', '=', False)]}"
                         icon="fa-usd">
                         <field string="Sales" name="sale_order_count" widget="statinfo"/>
                     </button>
diff --git a/addons/sale/views/sale_views.xml b/addons/sale/views/sale_views.xml
index e0bc1ef3632..3d2857b78e4 100644
--- a/addons/sale/views/sale_views.xml
+++ b/addons/sale/views/sale_views.xml
@@ -287,7 +287,7 @@
                     </div>
                     <group>
                         <group>
-                            <field name="partner_id" widget="res_partner_many2one" domain="[('customer','=',True)]" context="{'search_default_customer':1, 'show_address': 1, 'show_vat': True}" options='{"always_reload": True}'/>
+                            <field name="partner_id" widget="res_partner_many2one" context="{'res_partner_search_mode': 'customer', 'show_address': 1, 'show_vat': True}" options='{"always_reload": True}'/>
                             <field name="partner_invoice_id" groups="sale.group_delivery_invoice_address" context="{'default_type':'invoice'}" options='{"always_reload": True}'/>
                             <field name="partner_shipping_id" groups="sale.group_delivery_invoice_address" context="{'default_type':'delivery'}" options='{"always_reload": True}'/>
                         </group>
diff --git a/addons/sale_coupon/tests/common.py b/addons/sale_coupon/tests/common.py
index e6b8bd1b359..a5db1748b39 100644
--- a/addons/sale_coupon/tests/common.py
+++ b/addons/sale_coupon/tests/common.py
@@ -20,7 +20,6 @@ class TestSaleCouponCommon(TestSaleProductAttributeValueSetup):
         # create partner for sale order.
         self.steve = self.env['res.partner'].create({
             'name': 'Steve Bucknor',
-            'customer': True,
             'email': 'steve.bucknor@example.com',
         })
 
diff --git a/addons/sale_coupon/tests/test_program_numbers.py b/addons/sale_coupon/tests/test_program_numbers.py
index fa134498946..610c373adb1 100644
--- a/addons/sale_coupon/tests/test_program_numbers.py
+++ b/addons/sale_coupon/tests/test_program_numbers.py
@@ -19,7 +19,6 @@ class TestSaleCouponProgramNumbers(TestSaleCouponCommon):
         self.littleServer = self.env.ref('product.consu_delivery_02')
         self.steve = self.env['res.partner'].create({
             'name': 'Steve Bucknor',
-            'customer': True,
             'email': 'steve.bucknor@example.com',
         })
         self.empty_order = self.env['sale.order'].create({
diff --git a/addons/sale_purchase/tests/common.py b/addons/sale_purchase/tests/common.py
index 6012de38181..5d96690b627 100644
--- a/addons/sale_purchase/tests/common.py
+++ b/addons/sale_purchase/tests/common.py
@@ -35,7 +35,6 @@ class TestCommonSalePurchaseNoChart(TestCommonSaleNoChart):
         cls.partner_vendor_service = cls.env['res.partner'].create({
             'name': 'Super Service Supplier',
             'email': 'supplier.serv@supercompany.com',
-            'supplier': True,
         })
 
         cls.service_purchase_1 = cls.env['product.product'].create({
diff --git a/addons/sale_timesheet/tests/test_project_billing.py b/addons/sale_timesheet/tests/test_project_billing.py
index da6b5ee6eb6..7f0d533af8c 100644
--- a/addons/sale_timesheet/tests/test_project_billing.py
+++ b/addons/sale_timesheet/tests/test_project_billing.py
@@ -22,7 +22,6 @@ class TestProjectBilling(TestCommonSaleTimesheetNoChart):
         cls.partner_2 = cls.env['res.partner'].create({
             'name': 'Customer from the South',
             'email': 'customer.usd@south.com',
-            'customer': True,
             'property_account_payable_id': cls.account_payable.id,
             'property_account_receivable_id': cls.account_receivable.id,
         })
diff --git a/addons/sale_timesheet/wizard/project_create_sale_order.py b/addons/sale_timesheet/wizard/project_create_sale_order.py
index 26e11d11a0f..4c9c4e0faa7 100644
--- a/addons/sale_timesheet/wizard/project_create_sale_order.py
+++ b/addons/sale_timesheet/wizard/project_create_sale_order.py
@@ -27,7 +27,7 @@ class ProjectCreateSalesOrder(models.TransientModel):
         return result
 
     project_id = fields.Many2one('project.project', "Project", domain=[('sale_line_id', '=', False)], help="Project for which we are creating a sales order", required=True)
-    partner_id = fields.Many2one('res.partner', string="Customer", domain=[('customer', '=', True)], required=True, help="Customer of the sales order")
+    partner_id = fields.Many2one('res.partner', string="Customer", required=True, help="Customer of the sales order")
     product_id = fields.Many2one('product.product', domain=[('type', '=', 'service'), ('invoice_policy', '=', 'delivery'), ('service_type', '=', 'timesheet')], string="Service", help="Product of the sales order item. Must be a service invoiced based on timesheets on tasks.")
     price_unit = fields.Float("Unit Price", help="Unit price of the sales order item.")
     currency_id = fields.Many2one('res.currency', string="Currency", related='product_id.currency_id', readonly=False)
diff --git a/addons/stock/data/stock_demo.xml b/addons/stock/data/stock_demo.xml
index 43154eef9f8..ceaf8bad0aa 100644
--- a/addons/stock/data/stock_demo.xml
+++ b/addons/stock/data/stock_demo.xml
@@ -135,8 +135,6 @@
         <!--        Child Company 1-->
         <record id="res_partner_company_1" model="res.partner">
             <field name="name">My Company, Chicago</field>
-            <field eval="1" name="customer"/>
-            <field eval="1" name="supplier"/>
             <field name="is_company">1</field>
             <field eval="1" name="active"/>
             <field name="street">90 Streets Avenue</field>
diff --git a/addons/stock_account/tests/test_anglo_saxon_valuation_reconciliation_common.py b/addons/stock_account/tests/test_anglo_saxon_valuation_reconciliation_common.py
index a7b6d7ad544..f56f2d9d282 100644
--- a/addons/stock_account/tests/test_anglo_saxon_valuation_reconciliation_common.py
+++ b/addons/stock_account/tests/test_anglo_saxon_valuation_reconciliation_common.py
@@ -125,8 +125,6 @@ class ValuationReconciliationTestCase(AccountingTestCase):
 
         self.test_partner = self.env['res.partner'].create({
             'name': 'Ruben Rybnik',
-            'supplier': True,
-            'customer': True,
         })
 
         self.product_price_unit = 66.0
diff --git a/addons/survey/tests/common.py b/addons/survey/tests/common.py
index def5c81e2bb..bf73f5ecb47 100644
--- a/addons/survey/tests/common.py
+++ b/addons/survey/tests/common.py
@@ -60,7 +60,6 @@ class SurveyCase(common.SavepointCase):
         self.customer = self.env['res.partner'].create({
             'name': 'Caroline Customer',
             'email': 'customer@example.com',
-            'customer': True,
         })
 
         self.survey = self.env['survey.survey'].with_user(self.survey_manager).create({
diff --git a/addons/web/static/tests/fields/relational_fields/field_many2one_tests.js b/addons/web/static/tests/fields/relational_fields/field_many2one_tests.js
index b32f8478ccf..8145990839f 100644
--- a/addons/web/static/tests/fields/relational_fields/field_many2one_tests.js
+++ b/addons/web/static/tests/fields/relational_fields/field_many2one_tests.js
@@ -338,7 +338,7 @@ QUnit.module('fields', {}, function () {
                     '<field ' +
                     'name="trululu" ' +
                     'string="custom label" ' +
-                    'context="{\'search_default_customer\':1, \'show_address\': 1}" ' +
+                    'context="{\'show_address\': 1}" ' +
                     'options="{\'always_reload\': True}"' +
                     '/>' +
                     '</group>' +
diff --git a/addons/website_crm_partner_assign/views/res_partner_views.xml b/addons/website_crm_partner_assign/views/res_partner_views.xml
index dba9d112162..bc42280abfb 100644
--- a/addons/website_crm_partner_assign/views/res_partner_views.xml
+++ b/addons/website_crm_partner_assign/views/res_partner_views.xml
@@ -137,7 +137,7 @@
                     </group>
                 </xpath>
                 <xpath expr="//group[@name='sale']" position="inside">
-                    <field name="assigned_partner_id" groups="base.group_no_one" attrs="{'invisible': [('customer','=', False)]}"/>
+                    <field name="assigned_partner_id" groups="base.group_no_one"/>
                 </xpath>
             </data>
         </field>
diff --git a/addons/website_sale/controllers/main.py b/addons/website_sale/controllers/main.py
index 823011b0d03..93605643fd3 100644
--- a/addons/website_sale/controllers/main.py
+++ b/addons/website_sale/controllers/main.py
@@ -635,7 +635,6 @@ class WebsiteSale(http.Controller):
                 if k not in ('field_required', 'partner_id', 'callback', 'submitted'): # classic case
                     _logger.debug("website_sale postprocess: %s value has been dropped (empty or not writable)" % k)
 
-        new_values['customer'] = True
         new_values['team_id'] = request.website.salesteam_id and request.website.salesteam_id.id
         new_values['user_id'] = request.website.salesperson_id and request.website.salesperson_id.id
 
diff --git a/addons/website_slides/tests/common.py b/addons/website_slides/tests/common.py
index 788bf70b9e2..5be2442d96b 100644
--- a/addons/website_slides/tests/common.py
+++ b/addons/website_slides/tests/common.py
@@ -37,7 +37,6 @@ class SlidesCase(common.SavepointCase):
         self.customer = self.env['res.partner'].create({
             'name': 'Caroline Customer',
             'email': 'customer@example.com',
-            'customer': True,
         })
 
         self.channel = self.env['slide.channel'].with_user(self.user_publisher).create({