diff --git a/addons/mass_mailing/data/mailing_data_templates.xml b/addons/mass_mailing/data/mailing_data_templates.xml
index 35091fcd56c..53baaf0c224 100644
--- a/addons/mass_mailing/data/mailing_data_templates.xml
+++ b/addons/mass_mailing/data/mailing_data_templates.xml
@@ -117,7 +117,7 @@
                 </p>
                 <p t-else="">The winner has already been sent. Use <b>Compare Version</b> to get an overview of this A/B testing campaign.</p>
             </t>
-            <t t-elif="mailing.ab_testing_mailings_count >= 2">
+            <t t-elif="ab_testing_count >= 2">
                 <p>
                     A sample of <b><t t-out="mailing.ab_testing_pc"/>% of recipients</b> will receive this version.<br/>
                     <t t-if="total_ab_testing_pc > 100 and mailing.active">
diff --git a/addons/mass_mailing/models/mailing.py b/addons/mass_mailing/models/mailing.py
index 92a45a3dfbf..2a48e9b036d 100644
--- a/addons/mass_mailing/models/mailing.py
+++ b/addons/mass_mailing/models/mailing.py
@@ -203,6 +203,7 @@ class MassMailing(models.Model):
         related="campaign_id.ab_testing_winner_selection", readonly=False,
         default="opened_ratio",
         copy=True)
+    is_ab_test_sent = fields.Boolean(compute="_compute_is_ab_test_sent")
     kpi_mail_required = fields.Boolean('KPI mail required', copy=False)
     # statistics data
     mailing_trace_ids = fields.One2many('mailing.trace', 'mass_mailing_id', string='Emails Statistics')
@@ -472,6 +473,13 @@ class MassMailing(models.Model):
                 mailing._get_ab_testing_description_values()
             )
 
+    @api.depends('campaign_id.mailing_mail_ids.state')
+    def _compute_is_ab_test_sent(self):
+        for rec in self:
+            ab_testing_mailings = rec._get_ab_testing_siblings_mailings()
+            selected_mailings = ab_testing_mailings.filtered(lambda m: m.state == 'done')
+            rec.is_ab_test_sent = bool(selected_mailings)
+
     def _get_ab_testing_description_modifying_fields(self):
         return ['ab_testing_enabled', 'ab_testing_pc', 'ab_testing_schedule_datetime', 'ab_testing_winner_selection', 'campaign_id']
 
@@ -853,6 +861,7 @@ class MassMailing(models.Model):
             raise ValueError(_("A/B test option has not been enabled"))
         final_mailing = self.copy({
             'ab_testing_pc': 100,
+            'name': _(" %(subject)s (final)", subject=self.name) # Add suffix on name to show it's the final mailing
         })
         self.campaign_id.ab_testing_winner_mailing_id = final_mailing
         final_mailing.action_launch()
@@ -868,6 +877,7 @@ class MassMailing(models.Model):
         self.ensure_one()
         return {
             'mailing': self,
+            'ab_testing_count': self.ab_testing_mailings_count,
             'ab_testing_winner_selection_description': self._get_ab_testing_winner_selection()['description'],
             'total_ab_testing_pc': sum([
                 mailing.ab_testing_pc for mailing in self._get_ab_testing_siblings_mailings()
diff --git a/addons/mass_mailing/views/mailing_mailing_views.xml b/addons/mass_mailing/views/mailing_mailing_views.xml
index 83cd32db080..740e7ec61a8 100644
--- a/addons/mass_mailing/views/mailing_mailing_views.xml
+++ b/addons/mass_mailing/views/mailing_mailing_views.xml
@@ -276,22 +276,21 @@
                                             attrs="{'required': [('ab_testing_enabled', '=', True), ('mailing_type', '=', 'mail')], 'invisible': ['|', ('ab_testing_enabled', '=', False), ('mailing_type', '!=', 'mail')], 'readonly': [('state', '!=', 'draft')]}"/>
                                         <field name="ab_testing_schedule_datetime"
                                             attrs="{'required': [('ab_testing_enabled', '=', True), ('ab_testing_winner_selection', '!=', 'manual')], 'readonly': ['|', ('ab_testing_enabled', '=', False), ('state', '!=', 'draft')], 'invisible': ['|', ('ab_testing_enabled', '=', False), ('ab_testing_winner_selection', '=', 'manual')]}"/>
+                                        <field name="is_ab_test_sent" invisible="1"/>
                                     </group>
                                     <div>
                                         <field name="ab_testing_mailings_count" invisible="1"/>
                                         <field name="ab_testing_completed" invisible="1"/>
                                         <field name="ab_testing_description" nolabel="1"/>
-                                        <div attrs="{'invisible': ['|', ('ab_testing_mailings_count', '&lt;', 2), ('ab_testing_enabled', '=', False)]}">
+                                        <div id="mailing_form_ab_buttons" attrs="{'invisible': ['|', ('ab_testing_mailings_count', '&lt;', 2), ('ab_testing_enabled', '=', False)]}">
                                             <button name="action_compare_versions" type="object" class="btn btn-link d-block">
                                                 <i class="fa fa-bar-chart"/> Compare Version
                                             </button>
                                             <button name="action_duplicate" type="object" class="btn btn-link d-block" attrs="{'invisible': [('ab_testing_completed', '=', True)]}">
                                                 <i class="fa fa-copy"/> Create an Alternative
                                             </button>
-                                            <button name="action_send_winner_mailing" type="object" class="btn btn-link d-block" attrs="{'invisible': [('ab_testing_completed', '=', True)]}">
-                                                <i class="fa fa-envelope"/> <span name="ab_test_manual" attrs="{'invisible': [('ab_testing_winner_selection', '!=', 'manual')]}">
-                                                    Send this version to remaining recipients
-                                                </span> <span name="ab_test_auto" attrs="{'invisible': [('ab_testing_winner_selection', '=', 'manual')]}">
+                                            <button name="action_send_winner_mailing" type="object" class="btn btn-link d-block" attrs="{'invisible': ['|', ('is_ab_test_sent', '!=', True), '|', ('ab_testing_completed', '=', True), ('ab_testing_winner_selection', '=', 'manual')]}">
+                                                <i class="fa fa-envelope"/><span name="ab_test_auto">
                                                     Send Winner Now
                                                 </span>
                                             </button>
diff --git a/addons/mass_mailing_sms/models/mailing_mailing.py b/addons/mass_mailing_sms/models/mailing_mailing.py
index 14ae27c23e8..3d1ba768b43 100644
--- a/addons/mass_mailing_sms/models/mailing_mailing.py
+++ b/addons/mass_mailing_sms/models/mailing_mailing.py
@@ -52,6 +52,7 @@ class Mailing(models.Model):
     ab_testing_sms_winner_selection = fields.Selection(
         related="campaign_id.ab_testing_sms_winner_selection",
         default="clicks_ratio", readonly=False, copy=True)
+    ab_testing_mailings_sms_count = fields.Integer(related="campaign_id.ab_testing_mailings_sms_count")
 
     @api.depends('mailing_type')
     def _compute_medium_id(self):
@@ -337,6 +338,7 @@ class Mailing(models.Model):
         values = super()._get_ab_testing_description_values()
         if self.mailing_type == 'sms':
             values.update({
+                'ab_testing_count': self.ab_testing_mailings_sms_count,
                 'ab_testing_winner_selection': self.ab_testing_sms_winner_selection,
             })
         return values
diff --git a/addons/mass_mailing_sms/views/mailing_mailing_views.xml b/addons/mass_mailing_sms/views/mailing_mailing_views.xml
index 877f9970f4f..7b023ea278a 100644
--- a/addons/mass_mailing_sms/views/mailing_mailing_views.xml
+++ b/addons/mass_mailing_sms/views/mailing_mailing_views.xml
@@ -159,6 +159,9 @@
                     ('mail_server_available', '=', False)], 'readonly': [('state', 'in', ('sending', 'done'))]}</attribute>
             </xpath>
             <!-- A/B Testing -->
+            <xpath expr="//field[@name='ab_testing_mailings_count']" position="after">
+                <field name="ab_testing_mailings_sms_count" invisible="1"/>
+            </xpath>
             <xpath expr="//field[@name='ab_testing_winner_selection']" position="after">
                 <label for="ab_testing_sms_winner_selection" string="Winner Selection"
                     attrs="{'invisible': ['|', ('ab_testing_enabled', '=', False), ('mailing_type', '!=', 'sms')]}"/>
@@ -169,19 +172,21 @@
                  <field name="ab_testing_schedule_datetime"
                         attrs="{'required': [('ab_testing_enabled', '=', True), ('ab_testing_winner_selection', '!=', 'manual'), ('ab_testing_sms_winner_selection', '!=', 'manual')], 'readonly': ['|', ('ab_testing_enabled', '=', False), ('state', '!=', 'draft')], 'invisible': ['|', '|', ('ab_testing_enabled', '=', False), ('ab_testing_winner_selection', '=', 'manual'), ('ab_testing_sms_winner_selection', '=', 'manual')]}"/>
             </xpath>
-            <xpath expr="//span[@name='ab_test_manual']" position="attributes">
-                <attribute name="attrs">{'invisible': ['|', ('ab_testing_winner_selection', '!=', 'manual'),
-                    ('ab_testing_sms_winner_selection', '!=', 'manual')]}</attribute>
+            <xpath expr="//div[@id='mailing_form_ab_buttons']" position="attributes">
+                <attribute name="attrs">{'invisible': ['|', ('ab_testing_enabled', '=', False), '&amp;',
+                    ('ab_testing_mailings_count', '&lt;', 2),
+                    ('ab_testing_mailings_sms_count', '&lt;', 2)]}</attribute>
             </xpath>
-            <xpath expr="//span[@name='ab_test_auto']" position="attributes">
-                <attribute name="attrs">{'invisible': [('ab_testing_winner_selection', '=', 'manual'),
-                    ('ab_testing_sms_winner_selection', '=', 'manual')]}</attribute>
-            </xpath>
-            <xpath expr="//button[@name='action_select_as_winner']" position="attributes">
-                <attribute name="attrs">{'invisible': ['|', ('ab_testing_completed', '!=', False), '|',
+            <xpath expr="//button[@name='action_send_winner_mailing']" position="attributes">
+                <attribute name="attrs">{'invisible': ['|', ('is_ab_test_sent', '!=', True), '|', ('ab_testing_completed', '=', True), '|',
                     ('ab_testing_winner_selection', '=', 'manual'),
                     ('ab_testing_sms_winner_selection', '=', 'manual')]}</attribute>
             </xpath>
+            <xpath expr="//button[@name='action_duplicate'][hasclass('btn-primary')]" position="attributes">
+                <attribute name="attrs">{'invisible': ['|', '|', ('ab_testing_enabled', '=', False),
+                    ('ab_testing_mailings_count', '&gt;=', 2),
+                    ('ab_testing_mailings_sms_count', '&gt;=', 2)]}</attribute>
+            </xpath>
         </field>
     </record>