diff --git a/library/Notifications/Model/IncidentHistory.php b/library/Notifications/Model/IncidentHistory.php
index ff1624845..2498d5b56 100644
--- a/library/Notifications/Model/IncidentHistory.php
+++ b/library/Notifications/Model/IncidentHistory.php
@@ -39,7 +39,9 @@ public function getColumns()
             'old_severity',
             'new_recipient_role',
             'old_recipient_role',
-            'message'
+            'message',
+            'notification_state',
+            'sent_at'
         ];
     }
 
@@ -66,7 +68,7 @@ public function getColumnDefinitions()
 
     public function createBehaviors(Behaviors $behaviors)
     {
-        $behaviors->add(new MillisecondTimestamp(['time']));
+        $behaviors->add(new MillisecondTimestamp(['time', 'sent_at']));
     }
 
     public function getDefaultSort()
diff --git a/library/Notifications/Widget/ItemList/IncidentHistoryListItem.php b/library/Notifications/Widget/ItemList/IncidentHistoryListItem.php
index 177231f89..07abe2b33 100644
--- a/library/Notifications/Widget/ItemList/IncidentHistoryListItem.php
+++ b/library/Notifications/Widget/ItemList/IncidentHistoryListItem.php
@@ -169,24 +169,51 @@ protected function buildMessage(): string
                 break;
             case "notified":
                 if ($this->item->contactgroup_id) {
-                    $message = sprintf(
-                        t('Contact %s notified via %s as member of contact group %s'),
-                        $this->item->contact->full_name,
-                        $this->item->channel_type,
-                        $this->item->contactgroup->name
-                    );
+                    if ($this->item->notification_state === 'sent') {
+                        $message = sprintf(
+                            t('Contact %s notified via %s as member of contact group %s'),
+                            $this->item->contact->full_name,
+                            $this->item->channel_type,
+                            $this->item->contactgroup->name
+                        );
+                    } else {
+                        $message = sprintf(
+                            t('Contact %s notified via %s as member of contact group %s (%s)'),
+                            $this->item->contact->full_name,
+                            $this->item->channel_type,
+                            $this->item->contactgroup->name,
+                            $this->item->notification_state
+                        );
+                    }
                 } elseif ($this->item->schedule_id) {
+                    if ($this->item->notfication_state === 'sent') {
+                        $message = sprintf(
+                            t('Contact %s notified via %s as member of schedule %s'),
+                            $this->item->contact->full_name,
+                            $this->item->channel_type,
+                            $this->item->schedule->name
+                        );
+                    } else {
+                        $message = sprintf(
+                            t('Contact %s notified via %s as member of schedule %s (%s)'),
+                            $this->item->contact->full_name,
+                            $this->item->schedule->name,
+                            $this->item->channel_type,
+                            $this->item->notification_state
+                        );
+                    }
+                } elseif ($this->item->notification_state === 'sent') {
                     $message = sprintf(
-                        t('Contact %s notified via %s as member of schedule %s'),
+                        t('Contact %s notified via %s'),
                         $this->item->contact->full_name,
-                        $this->item->channel_type,
-                        $this->item->schedule->name
+                        $this->item->channel_type
                     );
                 } else {
                     $message = sprintf(
-                        t('Contact %s notified via %s'),
+                        t('Contact %s should have been notified via %s (%s)'),
                         $this->item->contact->full_name,
-                        $this->item->channel_type
+                        $this->item->channel_type,
+                        $this->item->notification_state
                     );
                 }
                 break;