diff --git a/beesdoo_shift/models/attendance_sheet.py b/beesdoo_shift/models/attendance_sheet.py
index 6eb17ec..2c1e800 100644
--- a/beesdoo_shift/models/attendance_sheet.py
+++ b/beesdoo_shift/models/attendance_sheet.py
@@ -314,6 +314,12 @@ class AttendanceSheet(models.Model):
             )
 
     def on_barcode_scanned(self, barcode):
+        if self.env.user.has_group("beesdoo_shift.group_shift_attendance"):
+            raise UserError(
+                _("You must be logged as 'Attendance Sheet Generic Access' "
+                " if you want to scan cards.")
+            )
+
         if self.state == "validated":
             raise UserError(
                 _("A validated attendance sheet can't be modified")
@@ -578,7 +584,7 @@ class AttendanceSheet(models.Model):
                 )
 
         # Open a validation wizard only if not admin
-        if self.env.user.has_group("beesdoo_shift.group_cooperative_admin"):
+        if self.env.user.has_group("beesdoo_shift.group_shift_attendance_sheet_validation"):
             if not self.worker_nb_feedback:
                 raise UserError(
                     _("Please give your feedback about the number of workers.")
diff --git a/beesdoo_shift/security/group.xml b/beesdoo_shift/security/group.xml
index 6e1b37f..fb2e671 100644
--- a/beesdoo_shift/security/group.xml
+++ b/beesdoo_shift/security/group.xml
@@ -4,12 +4,18 @@
             <field name="name">Attendance Sheet Generic Access</field>
             <field name="category_id" ref="base.module_category_cooperative_management"/>
         </record>
+        <record id="group_shift_attendance_sheet_validation" model="res.groups">
+            <field name="name">Attendance Sheet Validation</field>
+            <field name="category_id" ref="base.module_category_cooperative_management"/>
+            <field name="implied_ids" eval="[(4, ref('group_shift_attendance_sheet'))]"/>
+        </record>
         <record id="group_shift_attendance" model="res.groups">
-            <field name="name">Shift and Worker Access</field>
+            <field name="name">Shift and Worker Read Access</field>
             <field name="category_id" ref="base.module_category_cooperative_management"/>
+            <field name="implied_ids" eval="[(4, ref('group_shift_attendance_sheet'))]"/>
         </record>
         <record id="group_shift_management" model="res.groups">
-            <field name="name">Shift Management</field>
+            <field name="name">Shifts and Attendance Sheets Management</field>
             <field name="category_id" ref="base.module_category_cooperative_management"/>
             <field name="implied_ids" eval="[(4, ref('group_shift_attendance'))]"/>
         </record>
@@ -22,7 +28,8 @@
             <field name="name">Cooperative Admin</field>
             <field name="category_id" ref="base.module_category_cooperative_management"/>
             <field name="implied_ids" eval="[(6, 0, [ref('group_planning_management'),
-                                                     ref('group_shift_attendance_sheet')])]"
+                                                     ref('group_shift_attendance_sheet_validation'),
+                                                     ref('group_shift_attendance_sheet'),])]"
             />
             <field name="users" eval="[(4, ref('base.user_root'))]"/>
         </record>
diff --git a/beesdoo_shift/security/ir.model.access.csv b/beesdoo_shift/security/ir.model.access.csv
index 54c57d2..76458a3 100644
--- a/beesdoo_shift/security/ir.model.access.csv
+++ b/beesdoo_shift/security/ir.model.access.csv
@@ -12,13 +12,13 @@ access_beesdoo_shift_daynumber,access_beesdoo_shift_daynumber,model_beesdoo_shif
 read_beesdoo_shift_planning,read_beesdoo_shift_planning,model_beesdoo_shift_planning,,1,0,0,0
 access_beesdoo_shift_template,access_beesdoo_shift_template,model_beesdoo_shift_template,group_shift_attendance,1,0,0,0
 write_beesdoo_shift_shift,write_beesdoo_shift_shift,model_beesdoo_shift_shift,group_shift_attendance,1,1,0,0
-manage_beesdoo_shift_shift,manage_beesdoo_shift_shift,model_beesdoo_shift_shift,group_shift_management,1,1,1,1
+manage_beesdoo_shift_shift,manage_beesdoo_shift_shift,model_beesdoo_shift_shift,group_shift_attendance,1,1,1,1
 manage_beesdoo_shift_type,manage_beesdoo_shift_type,model_beesdoo_shift_type,group_planning_management,1,1,1,1
 manage_beesdoo_shift_daynumber,manage_beesdoo_shift_daynumber,model_beesdoo_shift_daynumber,group_planning_management,1,1,1,1
 manage_beesdoo_shift_planning,manage_beesdoo_shift_planning,model_beesdoo_shift_planning,group_planning_management,1,1,1,1
 manage_beesdoo_shift_template,manage_beesdoo_shift_template,model_beesdoo_shift_template,group_planning_management,1,1,1,1
-manage_beesdoo_shift_sheet_shift,beesdoo_shift_sheet_shift,model_beesdoo_shift_sheet_shift,group_cooperative_admin,1,1,1,1
-manage_beesdoo_shift_sheet_expected,manage_beesdoo_shift_sheet_expected,model_beesdoo_shift_sheet_expected,group_cooperative_admin,1,1,1,1
+manage_beesdoo_shift_sheet_shift,beesdoo_shift_sheet_shift,model_beesdoo_shift_sheet_shift,group_shift_attendance,1,1,1,1
+manage_beesdoo_shift_sheet_expected,manage_beesdoo_shift_sheet_expected,model_beesdoo_shift_sheet_expected,group_shift_attendance,1,1,1,1
 manage_cooperative_status,manage_cooperative_status,model_cooperative_status,group_cooperative_admin,1,1,1,1
 manage_cooperative_exempt_reason,manage_cooperative_exempt_reason,model_cooperative_exempt_reason,group_cooperative_admin,1,1,1,1
 read_beesdoo_shift_journal,read_beesdoo_shift_journal,model_beesdoo_shift_journal,group_cooperative_admin,1,0,1,1
diff --git a/beesdoo_shift/tests/test_beesdoo_shift.py b/beesdoo_shift/tests/test_beesdoo_shift.py
index 78d827a..4ed1588 100644
--- a/beesdoo_shift/tests/test_beesdoo_shift.py
+++ b/beesdoo_shift/tests/test_beesdoo_shift.py
@@ -260,6 +260,7 @@ class TestBeesdooShift(TransactionCase):
             self.user_generic
         )._generate_attendance_sheet()
         sheet_1 = self.search_sheets(self.start_in_1, self.end_in_1,)
+        sheet_1 = sheet_1.sudo(self.user_generic)
 
         """
         Expected workers are :
@@ -357,14 +358,6 @@ class TestBeesdooShift(TransactionCase):
             }
         )
 
-        # Wait necessary time for shifts to begin
-        waiting_time = (self.start_in_1 - datetime.now()).total_seconds()
-        if waiting_time > 0:
-            with self.assertRaises(UserError) as e:
-                sheet_1.validate_with_checks()
-                self.assertIn("wait", str(e.exception))
-            time.sleep(waiting_time)
-
         # TODO: test validation with wizard (as generic user)
         # class odoo.tests.common.Form(recordp, view=None)
         # is only available from version 12
@@ -373,6 +366,15 @@ class TestBeesdooShift(TransactionCase):
 
         # Validation without wizard (as admin user)
         sheet_1 = sheet_1.sudo(self.user_admin)
+
+        # Wait necessary time for shifts to begin
+        waiting_time = (self.start_in_1 - datetime.now()).total_seconds()
+        if waiting_time > 0:
+            with self.assertRaises(UserError) as e:
+                sheet_1.validate_with_checks()
+                self.assertIn("wait", str(e.exception))
+            time.sleep(waiting_time)
+
         sheet_1.worker_nb_feedback = "enough"
         sheet_1.feedback = "Great session."
         sheet_1.notes = "Important information."
diff --git a/beesdoo_shift/views/attendance_sheet.xml b/beesdoo_shift/views/attendance_sheet.xml
index 3b04c81..6e843f8 100644
--- a/beesdoo_shift/views/attendance_sheet.xml
+++ b/beesdoo_shift/views/attendance_sheet.xml
@@ -148,11 +148,11 @@
                         <button name="button_mark_as_read" type="object"
                                 class="oe_stat_button" icon="fa-check"
                                 string="Mark as read"
-                                groups="beesdoo_shift.group_cooperative_admin"
+                                groups="beesdoo_shift.group_shift_attendance"
                                 />
                         <button name="toggle_active"
                                 type="object"
-                                groups="beesdoo_shift.group_cooperative_admin"
+                                groups="beesdoo_shift.group_shift_attendance"
                                 class="oe_stat_button"
                                 icon="fa-archive">
                             <field name="active" widget="boolean_button" options='{"terminology": "archive"}'/>
@@ -176,7 +176,7 @@
                         <field name="expected_shift_ids" />
                         <br/>
                         <group col="1" string="Feedback"
-                               groups="beesdoo_shift.group_cooperative_admin">
+                               groups="beesdoo_shift.group_shift_attendance">
                             <field name="notes" />
                             <br/>
                             <field name="feedback" />
@@ -191,7 +191,7 @@
                 <div class="oe_chatter">
                     <field name="message_ids"
                            widget="mail_thread"
-                           groups="beesdoo_shift.group_cooperative_admin"
+                           groups="beesdoo_shift.group_shift_attendance"
                     />
                 </div>
             </form>
@@ -246,18 +246,18 @@
               name="Non-validated sheets"
               parent="menu_sheet_top"
               action="action_sheet_admin_non_validated"
-              groups="beesdoo_shift.group_cooperative_admin"
+              groups="beesdoo_shift.group_shift_attendance"
     />
     <menuitem id="menu_sheet_admin_annotated"
               name="Unread notes"
               parent="menu_sheet_top"
               action="action_sheet_admin_annotated"
-              groups="beesdoo_shift.group_cooperative_admin"
+              groups="beesdoo_shift.group_shift_attendance"
     />
     <menuitem id="menu_sheet_admin_list"
               name="All sheets"
               parent="menu_sheet_top"
               action="action_sheet_admin_list"
-              groups="beesdoo_shift.group_cooperative_admin"
+              groups="beesdoo_shift.group_shift_attendance"
     />
 </odoo>
diff --git a/beesdoo_shift/wizard/validate_attendance_sheet.py b/beesdoo_shift/wizard/validate_attendance_sheet.py
index cb12aca..5ab4c3d 100644
--- a/beesdoo_shift/wizard/validate_attendance_sheet.py
+++ b/beesdoo_shift/wizard/validate_attendance_sheet.py
@@ -9,7 +9,7 @@ from openerp.exceptions import UserError, ValidationError
 class ValidateAttendanceSheet(models.TransientModel):
     _name = "beesdoo.shift.sheet.validate"
     _description = """Check the user name and validate sheet.
-    Useless for users in group_cooperative_admin"""
+    Useless for users in group_shift_attendance"""
     _inherit = ["barcodes.barcode_events_mixin"]
 
     @api.multi
@@ -101,11 +101,11 @@ class ValidateAttendanceSheet(models.TransientModel):
             user.sudo(user.id).check_credentials(self.password)
             partner = user.partner_id
 
-        is_admin = partner.user_ids.has_group(
-            "beesdoo_shift.group_cooperative_admin"
+        can_validate = partner.user_ids.has_group(
+            "beesdoo_shift.group_shift_attendance_sheet_validation"
         )
 
-        if not partner.super and not is_admin:
+        if not partner.super and not can_validate:
             raise UserError(
                 _(
                     "Only super-cooperators and administrators can validate attendance sheets."