diff --git a/cinder/tests/unit/volume/drivers/dell_emc/powermax/powermax_data.py b/cinder/tests/unit/volume/drivers/dell_emc/powermax/powermax_data.py
index 7999c785665..62c889921d6 100644
--- a/cinder/tests/unit/volume/drivers/dell_emc/powermax/powermax_data.py
+++ b/cinder/tests/unit/volume/drivers/dell_emc/powermax/powermax_data.py
@@ -138,7 +138,8 @@ class PowerMaxData(object):
                          'is_multipath': True,
                          'array': array,
                          'controller': {'host': '10.00.00.00'},
-                         'hostlunid': 3}
+                         'hostlunid': 3,
+                         'device_id': device_id}
     iscsi_device_info_metro = deepcopy(iscsi_device_info)
     iscsi_device_info_metro['metro_ip_and_iqn'] = [{'ip': ip2, 'iqn': iqn2}]
     iscsi_device_info_metro['metro_hostlunid'] = 2
diff --git a/cinder/tests/unit/volume/drivers/dell_emc/powermax/test_powermax_common.py b/cinder/tests/unit/volume/drivers/dell_emc/powermax/test_powermax_common.py
index bb03cbf910f..7e15b648fa7 100644
--- a/cinder/tests/unit/volume/drivers/dell_emc/powermax/test_powermax_common.py
+++ b/cinder/tests/unit/volume/drivers/dell_emc/powermax/test_powermax_common.py
@@ -543,6 +543,32 @@ class PowerMaxCommonTest(test.TestCase):
         self.assertEqual(0, mck_remove.call_count)
         self.assertEqual(1, mck_info.call_count)
 
+    @mock.patch.object(provision.PowerMaxProvision, 'verify_slo_workload')
+    @mock.patch.object(common.PowerMaxCommon, '_remove_members')
+    @mock.patch.object(common.PowerMaxCommon, 'find_host_lun_id',
+                       return_value=(tpd.PowerMaxData.iscsi_device_info,
+                                     False))
+    @mock.patch.object(
+        common.PowerMaxCommon, '_get_replication_extra_specs',
+        return_value=tpd.PowerMaxData.rep_extra_specs_rep_config)
+    @mock.patch.object(
+        common.PowerMaxCommon, '_initial_setup',
+        return_value=tpd.PowerMaxData.rep_extra_specs_rep_config)
+    def test_unmap_lun_replication_force_flag(
+            self, mck_setup, mck_rep, mck_find, mck_rem, mck_slo):
+        volume = deepcopy(self.data.test_volume)
+        connector = deepcopy(self.data.connector)
+        device_info = self.data.provider_location['device_id']
+        volume.volume_attachment.objects = [
+            deepcopy(self.data.test_volume_attachment)]
+        extra_specs = deepcopy(self.data.rep_extra_specs_rep_config)
+        array = extra_specs[utils.ARRAY]
+        extra_specs[utils.FORCE_VOL_REMOVE] = True
+        self.common._unmap_lun(volume, connector)
+        mck_rem.assert_called_once_with(array, volume, device_info,
+                                        extra_specs, connector, False,
+                                        async_grp=None, host_template=None)
+
     def test_initialize_connection_already_mapped(self):
         volume = self.data.test_volume
         connector = self.data.connector
diff --git a/cinder/tests/unit/volume/drivers/dell_emc/powermax/test_powermax_replication.py b/cinder/tests/unit/volume/drivers/dell_emc/powermax/test_powermax_replication.py
index 67914082455..023aa293584 100644
--- a/cinder/tests/unit/volume/drivers/dell_emc/powermax/test_powermax_replication.py
+++ b/cinder/tests/unit/volume/drivers/dell_emc/powermax/test_powermax_replication.py
@@ -106,6 +106,7 @@ class PowerMaxReplicationTest(test.TestCase):
         extra_specs = deepcopy(self.extra_specs)
         extra_specs[utils.PORTGROUPNAME] = self.data.port_group_name_f
         extra_specs[utils.IS_RE] = True
+        extra_specs[utils.FORCE_VOL_REMOVE] = True
         rep_config = self.data.rep_config_sync
         rep_config[utils.RDF_CONS_EXEMPT] = False
         extra_specs[utils.REP_CONFIG] = rep_config
diff --git a/cinder/volume/drivers/dell_emc/powermax/common.py b/cinder/volume/drivers/dell_emc/powermax/common.py
index 26c6ff5fee5..df52cc99443 100644
--- a/cinder/volume/drivers/dell_emc/powermax/common.py
+++ b/cinder/volume/drivers/dell_emc/powermax/common.py
@@ -751,6 +751,7 @@ class PowerMaxCommon(object):
             backend_id = self._get_replicated_volume_backend_id(volume)
             rep_config = self.utils.get_rep_config(
                 backend_id, self.rep_configs)
+            extra_specs[utils.FORCE_VOL_REMOVE] = True
             rep_extra_specs = self._get_replication_extra_specs(
                 extra_specs, rep_config)
             if self.utils.is_volume_failed_over(volume):
diff --git a/cinder/volume/drivers/dell_emc/powermax/fc.py b/cinder/volume/drivers/dell_emc/powermax/fc.py
index ba69f64515f..ae7b45d0c91 100644
--- a/cinder/volume/drivers/dell_emc/powermax/fc.py
+++ b/cinder/volume/drivers/dell_emc/powermax/fc.py
@@ -124,9 +124,10 @@ class PowerMaxFCDriver(san.SanDriver, driver.FibreChannelDriver):
               - Pools bug fix allowing 'None' variants (bug #1873253)
         4.2.1 - Concurrent live migrations failure (bug #1875478)
         4.2.2 - U4P failover lock not released on exception (#1875640)
+        4.2.3 - Live migrate remove rep vol from sg (bug #1875432)
     """
 
-    VERSION = "4.2.2"
+    VERSION = "4.2.3"
 
     # ThirdPartySystems wiki
     CI_WIKI_NAME = "EMC_VMAX_CI"
diff --git a/cinder/volume/drivers/dell_emc/powermax/iscsi.py b/cinder/volume/drivers/dell_emc/powermax/iscsi.py
index a356ea075ee..e5d0e3cc955 100644
--- a/cinder/volume/drivers/dell_emc/powermax/iscsi.py
+++ b/cinder/volume/drivers/dell_emc/powermax/iscsi.py
@@ -129,9 +129,10 @@ class PowerMaxISCSIDriver(san.SanISCSIDriver):
               - Pools bug fix allowing 'None' variants (bug #1873253)
         4.2.1 - Concurrent live migrations failure (bug #1875478)
         4.2.2 - U4P failover lock not released on exception (#1875640)
+        4.2.3 - Live migrate remove rep vol from sg (bug #1875432)
     """
 
-    VERSION = "4.2.2"
+    VERSION = "4.2.3"
 
     # ThirdPartySystems wiki
     CI_WIKI_NAME = "EMC_VMAX_CI"