diff --git a/addons/hr_holidays/i18n/hr_holidays.pot b/addons/hr_holidays/i18n/hr_holidays.pot
index e42ede6fc57..15a8a589583 100644
--- a/addons/hr_holidays/i18n/hr_holidays.pot
+++ b/addons/hr_holidays/i18n/hr_holidays.pot
@@ -1360,8 +1360,8 @@ msgstr ""
 #. module: hr_holidays
 #: model:ir.model.fields,help:hr_holidays.field_hr_leave_type__responsible_ids
 msgid ""
-"Choose the Time Off Officer who will be notified to approve allocation or "
-"Time Off request"
+"Choose the Time Off Officers who will be notified to approve allocation or "
+"Time Off Request. If empty, nobody will be notified"
 msgstr ""
 
 #. module: hr_holidays
@@ -3018,7 +3018,7 @@ msgstr ""
 
 #. module: hr_holidays
 #: model:ir.model.fields,field_description:hr_holidays.field_hr_leave_type__responsible_ids
-msgid "Responsible Time Off Officer"
+msgid "Notified Time Off Officer"
 msgstr ""
 
 #. module: hr_holidays
diff --git a/addons/hr_holidays/models/hr_leave.py b/addons/hr_holidays/models/hr_leave.py
index b63cdb3386a..2918b7ba57a 100644
--- a/addons/hr_holidays/models/hr_leave.py
+++ b/addons/hr_holidays/models/hr_leave.py
@@ -1588,8 +1588,7 @@ class HolidaysRequest(models.Model):
         elif self.validation_type == 'hr' or (self.validation_type == 'both' and self.state == 'validate1'):
             if self.holiday_status_id.responsible_ids:
                 responsible = self.holiday_status_id.responsible_ids
-            else:
-                responsible = self.env.ref('hr_holidays.group_hr_holidays_user').users.filtered(lambda u: self.holiday_status_id.company_id in u.company_ids)
+
         return responsible
 
     def activity_update(self):
@@ -1604,16 +1603,17 @@ class HolidaysRequest(models.Model):
             if holiday.state == 'draft':
                 to_clean |= holiday
             elif holiday.state == 'confirm':
-                user_ids = holiday.sudo()._get_responsible_for_approval().ids or self.env.user.ids
-                for user_id in user_ids:
-                    activity_vals.append({
-                        'activity_type_id': self.env.ref('hr_holidays.mail_act_leave_approval').id,
-                        'automated': True,
-                        'note': note,
-                        'user_id': user_id,
-                        'res_id': holiday.id,
-                        'res_model_id': self.env.ref('hr_holidays.model_hr_leave').id,
-                    })
+                if holiday.holiday_status_id.responsible_ids:
+                    user_ids = holiday.sudo()._get_responsible_for_approval().ids or self.env.user.ids
+                    for user_id in user_ids:
+                        activity_vals.append({
+                            'activity_type_id': self.env.ref('hr_holidays.mail_act_leave_approval').id,
+                            'automated': True,
+                            'note': note,
+                            'user_id': user_id,
+                            'res_id': holiday.id,
+                            'res_model_id': self.env.ref('hr_holidays.model_hr_leave').id,
+                        })
             elif holiday.state == 'validate':
                 to_do |= holiday
             elif holiday.state == 'refuse':
diff --git a/addons/hr_holidays/models/hr_leave_allocation.py b/addons/hr_holidays/models/hr_leave_allocation.py
index 6ff5b946e02..693582195c4 100644
--- a/addons/hr_holidays/models/hr_leave_allocation.py
+++ b/addons/hr_holidays/models/hr_leave_allocation.py
@@ -757,9 +757,6 @@ class HolidaysAllocation(models.Model):
         if self.validation_type == 'officer' or self.validation_type == 'set':
             if self.holiday_status_id.responsible_ids:
                 responsible = self.holiday_status_id.responsible_ids
-            else:
-                responsible = self.env.ref('hr_holidays.group_hr_holidays_user').users.filtered(lambda u: self.holiday_status_id.company_id in u.company_ids)
-
         return responsible
 
     def activity_update(self):
@@ -776,16 +773,17 @@ class HolidaysAllocation(models.Model):
                 if allocation.state == 'draft':
                     to_clean |= allocation
                 elif allocation.state == 'confirm':
-                    user_ids = allocation.sudo()._get_responsible_for_approval().ids or self.env.user.ids
-                    for user_id in user_ids:
-                        activity_vals.append({
-                            'activity_type_id': self.env.ref('hr_holidays.mail_act_leave_allocation_approval').id,
-                            'automated': True,
-                            'note': note,
-                            'user_id': user_id,
-                            'res_id': allocation.id,
-                            'res_model_id': self.env.ref('hr_holidays.model_hr_leave_allocation').id,
-                        })
+                    if allocation.holiday_status_id.responsible_ids:
+                        user_ids = allocation.sudo()._get_responsible_for_approval().ids
+                        for user_id in user_ids:
+                            activity_vals.append({
+                                'activity_type_id': self.env.ref('hr_holidays.mail_act_leave_allocation_approval').id,
+                                'automated': True,
+                                'note': note,
+                                'user_id': user_id,
+                                'res_id': allocation.id,
+                                'res_model_id': self.env.ref('hr_holidays.model_hr_leave_allocation').id,
+                            })
                 elif allocation.state == 'validate':
                     to_do |= allocation
                 elif allocation.state == 'refuse':
diff --git a/addons/hr_holidays/models/hr_leave_type.py b/addons/hr_holidays/models/hr_leave_type.py
index 57f93ca8d66..7148eb5a3f2 100644
--- a/addons/hr_holidays/models/hr_leave_type.py
+++ b/addons/hr_holidays/models/hr_leave_type.py
@@ -59,12 +59,12 @@ class HolidaysType(models.Model):
         compute='_compute_group_days_leave', string='Group Time Off')
     company_id = fields.Many2one('res.company', string='Company', default=lambda self: self.env.company)
     responsible_ids = fields.Many2many(
-        'res.users', 'hr_leave_type_res_users_rel', 'hr_leave_type_id', 'res_users_id', string='Responsible Time Off Officer',
+        'res.users', 'hr_leave_type_res_users_rel', 'hr_leave_type_id', 'res_users_id', string='Notified Time Off Officer',
         domain=lambda self: [('groups_id', 'in', self.env.ref('hr_holidays.group_hr_holidays_user').id),
                              ('share', '=', False),
                              ('company_ids', 'in', self.env.company.id)],
                              auto_join=True,
-        help="Choose the Time Off Officer who will be notified to approve allocation or Time Off request")
+        help="Choose the Time Off Officers who will be notified to approve allocation or Time Off Request. If empty, nobody will be notified")
     leave_validation_type = fields.Selection([
         ('no_validation', 'No Validation'),
         ('hr', 'By Time Off Officer'),
diff --git a/addons/hr_holidays/tests/test_accrual_allocations.py b/addons/hr_holidays/tests/test_accrual_allocations.py
index 45c7adf7164..c27c421d30f 100644
--- a/addons/hr_holidays/tests/test_accrual_allocations.py
+++ b/addons/hr_holidays/tests/test_accrual_allocations.py
@@ -805,7 +805,7 @@ class TestAccrualAllocations(TestHrHolidaysCommon):
         # The second level could give 6 days but since the first level was already giving
         # 3 days, the second level gives 3 days to reach the second level's limit.
         # The third level gives 1 day since it only counts for one iteration.
-        self.assertEqual(allocation.number_of_days, 7)
+        self.assertAlmostEqual(allocation.number_of_days, 7, 2)
 
     def test_accrual_lost_previous_days(self):
         # Test that when an allocation with two levels is made and that the first level has it's action
@@ -876,7 +876,7 @@ class TestAccrualAllocations(TestHrHolidaysCommon):
         allocation.action_validate()
         with freeze_time('2022-4-1'):
             allocation._update_accrual()
-        self.assertEqual(allocation.number_of_days, 3, "Invalid number of days")
+        self.assertAlmostEqual(allocation.number_of_days, 3, 2, "Invalid number of days")
 
     def test_accrual_maximum_leaves(self):
         accrual_plan = self.env['hr.leave.accrual.plan'].with_context(tracking_disable=True).create({
diff --git a/addons/hr_holidays/tests/test_holidays_flow.py b/addons/hr_holidays/tests/test_holidays_flow.py
index e625f036da3..9c8112db67f 100644
--- a/addons/hr_holidays/tests/test_holidays_flow.py
+++ b/addons/hr_holidays/tests/test_holidays_flow.py
@@ -134,6 +134,7 @@ class TestHolidaysFlow(TestHrHolidaysCommon):
                 'employee_requests': 'no',
                 'allocation_validation_type': 'officer',
                 'leave_validation_type': 'both',
+                'responsible_ids': [Command.link(self.env.ref('base.user_admin').id)]
             })
             HolidaysEmployeeGroup = Requests.with_user(self.user_employee_id)
 
diff --git a/addons/hr_holidays/tests/test_leave_requests.py b/addons/hr_holidays/tests/test_leave_requests.py
index d482bc1613a..d9a77f8df9d 100644
--- a/addons/hr_holidays/tests/test_leave_requests.py
+++ b/addons/hr_holidays/tests/test_leave_requests.py
@@ -7,7 +7,7 @@ from dateutil.relativedelta import relativedelta
 from freezegun import freeze_time
 from pytz import timezone, UTC
 
-from odoo import fields
+from odoo import fields, Command
 from odoo.exceptions import ValidationError
 from odoo.tools import mute_logger
 from odoo.tests.common import Form
@@ -1069,6 +1069,7 @@ class TestLeaveRequests(TestHrHolidaysCommon):
                 'name': leave_validation_type.capitalize(),
                 'leave_validation_type': leave_validation_type,
                 'requires_allocation': 'no',
+                'responsible_ids': [Command.link(self.env.ref('base.user_admin').id)],
             })
             current_leave = self.env['hr.leave'].with_user(self.user_employee_id).create({
                 'name': 'Holiday Request',
diff --git a/addons/hr_holidays/tests/test_res_partner.py b/addons/hr_holidays/tests/test_res_partner.py
index 66f2a4d87c6..3b87e623a7e 100644
--- a/addons/hr_holidays/tests/test_res_partner.py
+++ b/addons/hr_holidays/tests/test_res_partner.py
@@ -39,6 +39,7 @@ class TestPartner(TransactionCase):
             'requires_allocation': 'no',
             'name': 'Legal Leaves',
             'time_type': 'leave',
+            'responsible_ids': cls.users.ids
         })
         cls.leaves = cls.env['hr.leave'].create([{
             'date_from': cls.today + relativedelta(days=-2),
diff --git a/addons/hr_holidays/views/hr_leave_type_views.xml b/addons/hr_holidays/views/hr_leave_type_views.xml
index d2fdd917206..fa3ce8ab773 100644
--- a/addons/hr_holidays/views/hr_leave_type_views.xml
+++ b/addons/hr_holidays/views/hr_leave_type_views.xml
@@ -76,7 +76,7 @@
                         <group name="allocation_validation" id="allocation_requests" string="Allocation Requests">
                             <field name="requires_allocation" widget="radio" options="{'horizontal':true}"/>
                             <field name="employee_requests" widget="radio" attrs="{'invisible': [('requires_allocation', '=', 'no')]}"/>
-                            <field name="allocation_validation_type" string="Approval" widget="radio" attrs="{'invisible': ['|', ('requires_allocation', '=', 'no'), ('employee_requests', '=', 'no')]}"/>
+                            <field name="allocation_validation_type" string="Approval" widget="radio" attrs="{'invisible': [('requires_allocation', '=', 'no')]}"/>
                         </group>
                     </group>
                     <group name="visual" id="visual" string="Display Option" class="mw-100 col-lg-12">
@@ -114,13 +114,15 @@
         <field name="name">hr.leave.type.normal.tree</field>
         <field name="model">hr.leave.type</field>
         <field name="arch" type="xml">
-            <tree string="Time Off Type">
+            <tree string="Time Off Type" multi_edit="1">
                 <field name="sequence" widget="handle"/>
                 <field name="display_name"/>
                 <field name="allocation_validation_type"/>
                 <field name="employee_requests" optional="hide"/>
                 <field name="requires_allocation" optional="hide"/>
                 <field name="leave_validation_type" optional="hide"/>
+                <field name="responsible_ids" widget="many2many_tags" attrs="{
+                                'invisible': [('leave_validation_type', 'in', ['no_validation', 'manager']), '|', ('requires_allocation', '=', 'no'), ('allocation_validation_type', '!=', 'officer')]}" optional="hide"/>
                 <field name="company_id" groups="base.group_multi_company" optional="hide"/>
             </tree>
         </field>