diff --git a/application/libraries/KalenderLib.php b/application/libraries/KalenderLib.php
index 4384c0ef7..3d05c2c64 100644
--- a/application/libraries/KalenderLib.php
+++ b/application/libraries/KalenderLib.php
@@ -459,7 +459,7 @@ class KalenderLib
 	{
 		$this->_getBasePlan($start_date, $end_date);
 
-		$this->_ci->KalenderModel->db->where('status_kurzbz', 'live');
+		$this->_ci->KalenderModel->db->where_in('status_kurzbz', array('live', 'to_delete_live'));
 
 		$data = $this->_ci->KalenderModel->load();
 
@@ -598,7 +598,7 @@ class KalenderLib
 
 		$kalender_entry = getData($entryResult);
 
-		if (in_array($kalender_entry->status_kurzbz, array('todelete', 'deleted')))
+		if (in_array($kalender_entry->status_kurzbz, array('to_delete', 'to_delete_live', 'to_delete_preview', 'deleted')))
 		{
 			return error([
 				'message' => $this->_ci->phraseslib->t('ui', 'entry_not_editable'),
@@ -641,7 +641,7 @@ class KalenderLib
 
 		$kalender_entry = getData($entryResult);
 
-		if (in_array($kalender_entry->status_kurzbz, array('todelete', 'deleted')))
+		if (in_array($kalender_entry->status_kurzbz, array('to_delete', 'to_delete_live', 'to_delete_preview', 'deleted')))
 		{
 			return error([
 				'message' => $this->_ci->phraseslib->t('ui', 'entry_not_editable'),
@@ -1292,7 +1292,7 @@ class KalenderLib
 
 		if ($kalender_entry->typ === 'lehreinheit')
 		{
-			if (in_array($kalender_entry->status_kurzbz, array('todelete', 'deleted')))
+			if (in_array($kalender_entry->status_kurzbz, array('to_delete', 'to_delete_live', 'to_delete_preview', 'deleted')))
 			{
 				return error([
 					'message' => $this->_ci->phraseslib->t('ui', 'entry_not_editable'),
@@ -1358,7 +1358,7 @@ class KalenderLib
 
 		if ($kalender_entry->typ === 'lehreinheit')
 		{
-			if (in_array($kalender_entry->status_kurzbz, array('todelete', 'deleted')))
+			if (in_array($kalender_entry->status_kurzbz, array('to_delete', 'to_delete_live', 'to_delete_preview', 'deleted')))
 			{
 				return error([
 					'message' => $this->_ci->phraseslib->t('ui', 'entry_not_editable'),
@@ -1588,36 +1588,60 @@ class KalenderLib
 		if (isError($result_ort)) return $result_ort;
 		$has_ort = hasData($result_ort) ? getData($result_ort)[0] : false;
 
-		if ($entry->status_kurzbz === 'planning')
+	if ($entry->status_kurzbz === 'sync_preview' || $entry->status_kurzbz === 'sync_live' || $entry->status_kurzbz === 'planning')
 		{
-			if ($has_ort)
-				$this->_deleteOrtEntry($has_ort);
+			$history = $this->getHistory($entry->kalender_id, false, false);
 
-			if ($has_lehreinheit)
-				$this->_deleteLehreinheitEntry($has_lehreinheit);
+			$history = hasData($history) && getData($history);
 
-			$this->_ci->KalenderModel->delete(array('tbl_kalender.kalender_id' => $entry->kalender_id));
-		}
-		else if ($entry->status_kurzbz === 'sync_preview' || $entry->status_kurzbz === 'sync_live')
-		{
-			$history = $this->getHistory($entry->kalender_id);
-			$history = hasData($history) ? getData($history) : false;
+			if ($history)
+			{
+				$result = $this->_ci->KalenderModel->update(
+					array('kalender_id' => $entry->kalender_id),
+					array('status_kurzbz' => 'to_delete','status_kurzbz_max' => 'planning')
+				);
 
-			if ($has_ort)
-				$result = $this->_deleteOrtEntry($has_ort);
+				if (isError($result))
+					return error($result);
+			}
+			else
+			{
+				if ($has_ort)
+				{
+					$result = $this->_deleteOrtEntry($has_ort);
+					if (isError($result))
+						return error($result);
 
-			if ($has_lehreinheit)
-				$result = $this->_deleteLehreinheitEntry($has_lehreinheit);
+				}
 
-			$this->_ci->KalenderModel->delete(array('tbl_kalender.kalender_id' => $entry->kalender_id));
+
+				if ($has_lehreinheit)
+				{
+					$result = $this->_deleteLehreinheitEntry($has_lehreinheit);
+					if (isError($result))
+						return error($result);
+				}
+
+				$result = $this->_ci->KalenderModel->delete(array('tbl_kalender.kalender_id' => $entry->kalender_id));
+
+				if (isError($result))
+					return error($result);
+			}
 		}
 		else if ($entry->status_kurzbz === 'preview' || $entry->status_kurzbz === 'live')
 		{
-			//TODO (david) überprüfen ob sinnvoll, verschwindet direkt in den ansichten (student, lecturer)
+			if ($entry->status_kurzbz === 'preview')
+				$new_status = 'to_delete_preview';
+			else
+				$new_status = 'to_delete_live';
+
 			$result = $this->_ci->KalenderModel->update(
 				array('kalender_id' => $entry->kalender_id),
-				array('status_kurzbz' => 'todelete')
+				array('status_kurzbz' => $new_status)
 			);
+
+			if (isError($result))
+				return error($result);
 		}
 
 		return success();
@@ -1642,11 +1666,11 @@ class KalenderLib
 		return $this->_ci->KalenderEventModel->delete(array('kalender_id' => $entry->kalender_id));
 	}
 
-	public function getHistory($kalender_id, $only_previous = false)
+	public function getHistory($kalender_id, $only_previous = false, $include_self = true)
 	{
 		$dbModel = new DB_Model();
-		$history_entries = $dbModel->execReadOnlyQuery("
-				WITH RECURSIVE 
+		$history_sql ="
+			WITH RECURSIVE 
 				vorgaenger(kalender_id, vorgaenger_kalender_id) AS (
 					SELECT kalender_id, vorgaenger_kalender_id
 					FROM lehre.tbl_kalender
@@ -1685,12 +1709,19 @@ class KalenderLib
 					SELECT kalender_id FROM nachfolger
 				) combined
 				JOIN lehre.tbl_kalender USING(kalender_id)
-					LEFT JOIN orte USING(kalender_id)
-				ORDER BY kalender_id DESC
-				
-			" . ($only_previous ? ' LIMIT 1' : ''), array($kalender_id, $kalender_id));
+					LEFT JOIN orte USING(kalender_id)";
 
-		return $history_entries;
+		$params =  array($kalender_id, $kalender_id);
+
+		if (!$include_self)
+		{
+			$history_sql .= " WHERE kalender_id != ?";
+			$params[] = $kalender_id;
+		}
+
+		$history_sql .= " ORDER BY kalender_id DESC" . ($only_previous ? ' LIMIT 1' : '');
+
+		return $dbModel->execReadOnlyQuery($history_sql, $params);
 	}
 
 }
diff --git a/application/libraries/KalenderSyncLib.php b/application/libraries/KalenderSyncLib.php
index 7c10c2add..fce0ecd5d 100644
--- a/application/libraries/KalenderSyncLib.php
+++ b/application/libraries/KalenderSyncLib.php
@@ -19,6 +19,7 @@ class KalenderSyncLib
 		$this->_ci->load->model('ressource/Kalendersyncstatus_model', 'KalendersyncstatusModel');
 		$this->_ci->load->model('organisation/Studiengang_model', 'StudiengangModel');
 		$this->_ci->load->model('organisation/Organisationseinheit_model', 'OrganisationseinheitModel');
+		$this->_ci->load->library('KalenderLib');
 	}
 
 	public function run($studiensemester_kurzbz)
@@ -41,7 +42,7 @@ class KalenderSyncLib
 
 			$ziel_status = isEmptyString($config->sync_status_kurzbz) ? 'live' : $config->sync_status_kurzbz;
 
-			$relevante_stati = array_merge($this->status_map[$ziel_status], array('todelete'));
+			$relevante_stati = array_merge($this->status_map[$ziel_status], array('to_delete', 'to_delete_live', 'to_delete_preview'));
 
 			$kalender_ids_result = $this->getKalenderIds(
 				$config->oe_kurzbz,
@@ -89,7 +90,7 @@ class KalenderSyncLib
 
 	public function runManual($oe_kurzbz, $studiensemester_kurzbz, $ausbildungssemester = null, $studienplan_id = null, $mail = true, $datum_bis = null, $ziel_status = 'live')
 	{
-		$relevante_stati = array_merge($this->status_map[$ziel_status], array('todelete'));
+		$relevante_stati = array_merge($this->status_map[$ziel_status], array('to_delete', 'to_delete_live', 'to_delete_preview'));
 
 		$kalender_ids_result = $this->getKalenderIds(
 			$oe_kurzbz,
@@ -126,7 +127,7 @@ class KalenderSyncLib
 		$mail_infos_gesamt = [];
 		$synced_gesamt = 0;
 
-		$todelete_ids_result = $this->_getManuallySetStatus(array('todelete'));
+		$todelete_ids_result = $this->_getManuallySetStatus(array('to_delete', 'to_delete_live', 'to_delete_preview'));
 
 		if (isError($todelete_ids_result))
 			return $todelete_ids_result;
@@ -264,30 +265,34 @@ class KalenderSyncLib
 
 	private function _archiveVorgaenger($vorgaenger_kalender_id, $stop_at_live = false)
 	{
-		if (!$vorgaenger_kalender_id) return;
+		$return_array = array();
+		if (!$vorgaenger_kalender_id) return success($return_array);
 
 		$current_id = $vorgaenger_kalender_id;
 
 		while ($current_id)
 		{
 			$vorgaenger = $this->_ci->KalenderModel->load(array('kalender_id' => $current_id));
-			if (!hasData($vorgaenger)) return;
+			if (!hasData($vorgaenger)) return success($return_array);
 
 			$vorgaenger = getData($vorgaenger)[0];
 
 			if ($stop_at_live && $vorgaenger->status_kurzbz === 'live')
-				return;
+				return success($return_array);
 
 			if (in_array($vorgaenger->status_kurzbz, array('preview', 'live')))
 			{
 				$this->_ci->KalenderModel->update(
 					array('kalender_id' => $current_id),
-					array('status_kurzbz' => 'archived')
+					array('status_kurzbz' => 'archived', 'status_kurzbz_max' => $vorgaenger->status_kurzbz)
 				);
+
+				$return_array[] = $vorgaenger;
 			}
 
 			$current_id = $vorgaenger->vorgaenger_kalender_id;
 		}
+		return success($return_array);
 	}
 
 	private function _syncKalenderIds($kalender_ids, $ziel_status)
@@ -312,11 +317,63 @@ class KalenderSyncLib
 
 		foreach (getData($to_update) as $entry)
 		{
-			if ($entry->status_kurzbz === 'todelete')
+			if (in_array($entry->status_kurzbz, array('to_delete', 'to_delete_live', 'to_delete_preview')))
 			{
-				$this->_ci->KalenderModel->update(array('kalender_id' => $entry->kalender_id), array('status_kurzbz' => 'deleted'));
-				$this->_archiveVorgaenger($entry->vorgaenger_kalender_id, false);
-				$mail_infos[] = array('entry' => $entry, 'new_status' => 'deleted', 'notify' => array('lektor', 'student'));
+				$notify = array();
+				if ($entry->status_kurzbz === 'to_delete_live')
+				{
+					$status_max = 'live';
+					$notify = array('lektor', 'student');
+				}
+				else if ($entry->status_kurzbz === 'to_delete_preview')
+				{
+					$status_max = 'preview';
+					$notify = array('lektor');
+				}
+				else if ($entry->status_kurzbz === 'to_delete')
+				{
+					$status_max = 'planning';
+				}
+
+				$this->_ci->KalenderModel->update(array('kalender_id' => $entry->kalender_id), array('status_kurzbz' => 'deleted', 'status_kurzbz_max' => $status_max));
+				$mail_infos[] = array('entry' => $entry, 'new_status' => 'deleted', 'notify' => $notify);
+
+				$vorgaenger_array = $this->_archiveVorgaenger($entry->vorgaenger_kalender_id);
+
+
+
+				if (hasData($vorgaenger_array))
+				{
+					foreach(getData($vorgaenger_array) as $vorgaenger)
+					{
+						$archive_notify = array();
+
+						if ($vorgaenger->status_kurzbz === 'preview')
+							$archive_notify = array('lektor');
+						else if ($vorgaenger->status_kurzbz === 'live')
+						{
+							$archive_notify = array('student', 'lektor');
+
+							$history = $this->_ci->kalenderlib->getHistory($vorgaenger->kalender_id, false, false);
+							if (hasData($history))
+							{
+								$history = getData($history);
+
+								foreach ($history as $entry)
+								{
+									if ($entry->status_kurzbz === 'deleted' && $entry->status_kurzbz_max === 'preview')
+									{
+										$archive_notify = array('student');
+										break;
+									}
+								}
+							}
+						}
+
+						$mail_infos[] = array('entry' => $vorgaenger, 'new_status' => 'deleted', 'notify' => $archive_notify);
+					}
+				}
+
 				$synced++;
 				continue;
 			}
diff --git a/public/js/components/Tempus/Tempus.js b/public/js/components/Tempus/Tempus.js
index 3e4a1834a..dbcf388e9 100644
--- a/public/js/components/Tempus/Tempus.js
+++ b/public/js/components/Tempus/Tempus.js
@@ -1362,6 +1362,7 @@ export default {
 							<th>Von</th>
 							<th>Bis</th>
 							<th>Status</th>
+							<th>Max Status</th>
 							<th>Ort</th>
 						</tr>
 					</thead>
@@ -1370,6 +1371,7 @@ export default {
 							<td>{{ entry.von }}</td>
 							<td>{{ entry.bis }}</td>
 							<td>{{ entry.status_kurzbz }}</td>
+							<td>{{ entry.status_kurzbz_max }}</td>
 							<td>{{ entry.ort }}</td>
 						</tr>
 					</tbody>
diff --git a/system/dbupdate_3.4/46975_tempus.php b/system/dbupdate_3.4/46975_tempus.php
index 68d5cdcf8..5dc9f730b 100644
--- a/system/dbupdate_3.4/46975_tempus.php
+++ b/system/dbupdate_3.4/46975_tempus.php
@@ -249,3 +249,32 @@ if ($result = @$db->db_query("SELECT 1 FROM public.tbl_variablenname WHERE name
 			echo 'public.tbl_variablenname: Added name "tempus_favorites"<br>';
 	}
 }
+
+
+if(!$result = @$db->db_query("SELECT status_kurzbz_max FROM lehre.tbl_kalender LIMIT 1"))
+{
+	$qry = "ALTER TABLE lehre.tbl_kalender ADD COLUMN status_kurzbz_max character varying(32);
+			
+			UPDATE lehre.tbl_kalender_status 
+			SET status_kurzbz = 'to_delete',
+				bezeichnung = 'to_delete',
+			WHERE status_kurzbz = 'todelete';
+			UPDATE lehre.tbl_kalender_status SET sort = 9 WHERE status_kurzbz = 'deleted';
+			UPDATE lehre.tbl_kalender_status SET sort = 10 WHERE status_kurzbz = 'archived';
+			INSERT INTO lehre.tbl_kalender_status (status_kurzbz, bezeichnung, bezeichnung_mehrsprachig, sort) VALUES (E'to_delete_preview', E'to_delete_preview', E'{\"Zur Löschung in Voransicht\", \"Marked for Deletion in Preview\"}', 7);
+			INSERT INTO lehre.tbl_kalender_status (status_kurzbz, bezeichnung, bezeichnung_mehrsprachig, sort) VALUES (E'to_delete_live', E'to_delete_live', E'{\"Zur Löschung in Live\", \"Marked for Deletion in Live\"}', 8);
+
+			ALTER TABLE lehre.tbl_kalender ADD CONSTRAINT tbl_kalender_status_max_fk FOREIGN KEY (status_kurzbz_max) 
+			REFERENCES lehre.tbl_kalender_status (status_kurzbz) MATCH FULL ON DELETE RESTRICT ON UPDATE CASCADE;
+";
+
+
+	if(!$db->db_query($qry))
+		echo '<strong>lehre.tbl_kalender: '.$db->db_last_error().'</strong><br>';
+	else
+		echo '<br />lehre.tbl_kalender: Spalte status_kurzbz_max hinzugefuegt.
+			<br />lehre.tbl_kalender_status: status_kurzbz von todelete auf to_delete umbenannt.
+			<br />lehre.tbl_kalender_status: status_kurzbz to_delete_preview hinzugefuegt.
+			<br />lehre.tbl_kalender_status: status_kurzbz to_delete_live hinzugefuegt.
+	';
+}
\ No newline at end of file