diff --git a/addons/point_of_sale/models/res_partner.py b/addons/point_of_sale/models/res_partner.py
index bcfe3012259..a0246c6fadb 100644
--- a/addons/point_of_sale/models/res_partner.py
+++ b/addons/point_of_sale/models/res_partner.py
@@ -13,11 +13,6 @@ class ResPartner(models.Model):
         groups="point_of_sale.group_pos_user",
     )
     pos_order_ids = fields.One2many('pos.order', 'partner_id', readonly=True)
-    barcode = fields.Char(help="Use a barcode to identify this contact from the Point of Sale.", copy=False)
-
-    _sql_constraints = [
-        ('unique_barcode', 'unique(barcode, company_id)', 'This barcode is already assigned to another contact. Please make sure you assign a unique barcode to this contact.'),
-    ]
 
     def _compute_pos_order(self):
         partners_data = self.env['pos.order'].read_group([('partner_id', 'in', self.ids)], ['partner_id'], ['partner_id'])
diff --git a/odoo/addons/base/models/res_partner.py b/odoo/addons/base/models/res_partner.py
index cb5d5f6b174..14e8c634339 100644
--- a/odoo/addons/base/models/res_partner.py
+++ b/odoo/addons/base/models/res_partner.py
@@ -224,6 +224,7 @@ class Partner(models.Model):
     commercial_company_name = fields.Char('Company Name Entity', compute='_compute_commercial_company_name',
                                           store=True)
     company_name = fields.Char('Company Name')
+    barcode = fields.Char(help="Use a barcode to identify this contact.", copy=False, company_dependent=True)
 
     # hack to allow using plain browse record in qweb views, and used in ir.qweb.field.contact
     self = fields.Many2one(comodel_name=_name, compute='_compute_get_ids')
@@ -380,6 +381,11 @@ class Partner(models.Model):
     def onchange_company_type(self):
         self.is_company = (self.company_type == 'company')
 
+    @api.constrains('barcode')
+    def _check_barcode_unicity(self):
+        if self.env['res.partner'].search_count([('barcode', '=', self.barcode)]) > 1:
+            raise ValidationError('An other user already has this barcode')
+
     def _update_fields_values(self, fields):
         """ Returns dict of write() values for synchronizing ``fields`` """
         values = {}