diff --git a/addons/crm/models/crm_lead.py b/addons/crm/models/crm_lead.py
index 8bb07da6af2..14a072f7377 100644
--- a/addons/crm/models/crm_lead.py
+++ b/addons/crm/models/crm_lead.py
@@ -999,6 +999,7 @@ class Lead(models.Model):
     def action_set_lost_with_reason(self):
         action = self.env['ir.actions.act_window']._for_xml_id('crm.crm_lead_lost_action')
         action.update({'context': {**self.env.context, **literal_eval(action.get('context', '{}'))}})
+        action.setdefault('default_lead_ids', self.ids)
         return action
 
     def action_set_won(self):
diff --git a/addons/crm/tests/test_crm_lead_lost.py b/addons/crm/tests/test_crm_lead_lost.py
index 33d5f38ea41..4c39abe6f82 100644
--- a/addons/crm/tests/test_crm_lead_lost.py
+++ b/addons/crm/tests/test_crm_lead_lost.py
@@ -41,9 +41,8 @@ class TestLeadConvert(crm_common.TestCrmCommon):
         self.assertEqual(update_message.subtype_id, self.env.ref('mail.mt_note'))
 
         # mark as lost using the wizard
-        lost_wizard = self.env['crm.lead.lost'].with_context({
-            'active_ids': lead.ids,
-        }).create({
+        lost_wizard = self.env['crm.lead.lost'].create({
+            'lead_ids': lead.ids,
             'lost_reason_id': self.lost_reason.id,
             'lost_feedback': '<p></p>',  # void content
         })
@@ -76,9 +75,8 @@ class TestLeadConvert(crm_common.TestCrmCommon):
         self.assertEqual(len(leads), 10)
         self.flush_tracking()
 
-        lost_wizard = self.env['crm.lead.lost'].with_context({
-            'active_ids': leads.ids,
-        }).create({
+        lost_wizard = self.env['crm.lead.lost'].create({
+            'lead_ids': leads.ids,
             'lost_reason_id': self.lost_reason.id,
             'lost_feedback': '<p>I cannot find it. It was in my closet and pouf, disappeared.</p>',
         })
@@ -121,12 +119,12 @@ class TestLeadConvert(crm_common.TestCrmCommon):
                 'name': 'Test Reason'
             })
 
-        lost_wizard = self.env['crm.lead.lost'].with_context({
-            'active_ids': lead.ids
-        }).create({
-            'lost_reason_id': lost_reason.id
-        })
-
         # nice try little salesman, you cannot invoke a wizard to update other people leads
         with self.assertRaises(AccessError):
+            # wizard needs to be here due to cache clearing in assertRaises
+            # (ORM does not load m2m records unavailable to the user from database)
+            lost_wizard = self.env['crm.lead.lost'].create({
+                'lead_ids': lead.ids,
+                'lost_reason_id': lost_reason.id
+            })
             lost_wizard.action_lost_reason_apply()
diff --git a/addons/crm/views/crm_lead_views.xml b/addons/crm/views/crm_lead_views.xml
index dea34eccdb9..3f15ae04dae 100644
--- a/addons/crm/views/crm_lead_views.xml
+++ b/addons/crm/views/crm_lead_views.xml
@@ -9,8 +9,8 @@
                         <button name="action_set_won_rainbowman" string="Won"
                             type="object" class="oe_highlight" data-hotkey="w" title="Mark as won"
                             attrs="{'invisible': ['|','|', ('active','=',False), ('probability', '=', 100), ('type', '=', 'lead')]}"/>
-                        <button name="%(crm.crm_lead_lost_action)d" string="Lost" data-hotkey="l" title="Mark as lost"
-                            type="action" context="{'default_lead_id': active_id}" attrs="{'invisible': ['|', ('type', '=', 'lead'), '&amp;',('active', '=', False),('probability', '&lt;', 100)]}"/>
+                        <button name="%(crm.action_set_lost_with_reason)d" string="Lost" data-hotkey="l" title="Mark as lost"
+                            type="action" attrs="{'invisible': ['|', ('type', '=', 'lead'), '&amp;',('active', '=', False),('probability', '&lt;', 100)]}"/>
                         <button name="%(crm.action_crm_lead2opportunity_partner)d" string="Convert to Opportunity" type="action" help="Convert to Opportunity"
                             class="oe_highlight" attrs="{'invisible': ['|', ('type', '=', 'opportunity'), ('active', '=', False)]}" data-hotkey="v"/>
                         <button name="toggle_active" string="Restore" type="object" data-hotkey="z"
diff --git a/addons/crm/wizard/crm_lead_lost.py b/addons/crm/wizard/crm_lead_lost.py
index 694483dd90c..c0dd70340cd 100644
--- a/addons/crm/wizard/crm_lead_lost.py
+++ b/addons/crm/wizard/crm_lead_lost.py
@@ -10,20 +10,27 @@ class CrmLeadLost(models.TransientModel):
     _name = 'crm.lead.lost'
     _description = 'Get Lost Reason'
 
+    lead_ids = fields.Many2many('crm.lead')
     lost_reason_id = fields.Many2one('crm.lost.reason', 'Lost Reason')
     lost_feedback = fields.Html(
         'Closing Note', sanitize=True
     )
 
     def action_lost_reason_apply(self):
+        """Mark lead as lost and apply the loss reason"""
         self.ensure_one()
-        leads = self.env['crm.lead'].browse(self.env.context.get('active_ids'))
+        # get lead from context for retro-compatibility
+        if not self.lead_ids and self.env.context.get('active_model', '') == 'crm.lead':
+            ctx = self.env.context
+            ctx_lead_ids = ctx.get('active_ids') or [ctx['active_id']] if ctx.get('active_id') else []
+            self.lead_ids = self.lead_ids.browse(ctx_lead_ids)
+
         if not is_html_empty(self.lost_feedback):
-            leads._track_set_log_message(
+            self.lead_ids._track_set_log_message(
                 Markup('<div style="margin-bottom: 4px;"><p>%s:</p>%s<br /></div>') % (
                     _('Lost Comment'),
                     self.lost_feedback
                 )
             )
-        res = leads.action_set_lost(lost_reason_id=self.lost_reason_id.id)
+        res = self.lead_ids.action_set_lost(lost_reason_id=self.lost_reason_id.id)
         return res