diff --git a/Layout/default/Preorder/include/preorder-detail.php b/Layout/default/Preorder/include/preorder-detail.php
index f46760256..602ededbe 100644
--- a/Layout/default/Preorder/include/preorder-detail.php
+++ b/Layout/default/Preorder/include/preorder-detail.php
@@ -36,7 +36,7 @@
                       </tr><tr>
                         <th>Status:</th>
                         <td class="text-monospace">
-                          <span id="preorder-detail-status-<?=$preorder->id?>-text"><span id="preorder-detail-status-<?=$preorder->id?>-statustext"><?=$preorder->status->code?> - <?=$preorder->status->name?></span> <a href="#" onclick="return toggleStatusControl(<?=$preorder->id?>, <?=$preorder->status_id?>)"><i class="fas fa-fw fa-edit"></i></a></span>
+                          <span id="preorder-detail-status-<?=$preorder->id?>-text" data-status-id="<?=$preorder->status_id?>"><span id="preorder-detail-status-<?=$preorder->id?>-statustext"><?=$preorder->status->code?> - <?=$preorder->status->name?></span> <a href="#" onclick="return toggleStatusControl(<?=$preorder->id?>)"><i class="fas fa-fw fa-edit"></i></a></span>
                           <div class="input-group" id="preorder-detail-status-<?=$preorder->id?>-input" style="display:none">
                             <select class="form-control">
                               <?php foreach(PreorderstatusModel::getAll() as $status): ?>
@@ -172,7 +172,8 @@
                         <td class="text-monospace text-pink"><?=$preorder->adb_hausnummer->oaid?></td>
                       </tr><tr>
                         <th>Status</th>
-                        <td class="text-monospace"><?=$preorder->adb_hausnummer->status->code?> - <?=$preorder->adb_hausnummer->status->name?></td>
+                        <td id="preorder-detail-building-status-<?=$preorder->id?>" class="text-monospace"><?=$preorder->adb_hausnummer->status->code?> - <?=$preorder->adb_hausnummer->status->name?></td>
+                        
                       </tr><tr>
                         <th>Extref</th>
                         <td class="text-monospace"><?=$preorder->adb_hausnummer->extref?></td>
@@ -195,7 +196,7 @@
                         <td class="text-monospace"><?=($preorder->adb_wohneinheit_id) ? $preorder->adb_wohneinheit_id : ""?></td>
                       </tr><tr>
                         <th>Status</th>
-                        <td class="text-monospace"><?=$preorder->adb_wohneinheit->status->code?> - <?=$preorder->adb_wohneinheit->status->name?></td>
+                        <td id="preorder-detail-unit-status-<?=$preorder->id?>" class="text-monospace"><?=$preorder->adb_wohneinheit->status->code?> - <?=$preorder->adb_wohneinheit->status->name?></td>
                       </tr><tr>
                         <th>OAID</th>
                         <td class="text-monospace text-pink"><?=$preorder->adb_wohneinheit->oaid?></td>
@@ -345,7 +346,10 @@
 </div>
 <script type="text/javascript">
   function toggleStatusControl(pid, sid) {
-    $("#preorder-detail-status-" + pid + "-input select").val(sid);
+    // set select to current status id
+    $("#preorder-detail-status-" + pid + "-input select").val($("#preorder-detail-status-" + pid + "-text").data("status-id"));
+    
+    // toggle controls
     $("#preorder-detail-status-" + pid + "-text").toggle();
     $("#preorder-detail-status-" + pid + "-input").toggle();
     
@@ -367,15 +371,31 @@
     },
     function(success) {
       if(success.status == "OK") {
-        $("#preorder-detail-status-" + pid + "-statustext").text(success.result.status_code + " - " + success.result.status_text);
+        var update = success.result.update;
+        if("preorder" in update) {
+          // update detail status text
+          $("#preorder-detail-status-" + pid + "-statustext").text(update.preorder.status.code + " - " + update.preorder.status.text);
+          $("#preorder-detail-status-" + pid + "-text").addClass("text-success");
+          setTimeout(() => { $("#preorder-detail-status-" + pid + "-text").removeClass("text-success") }, 1500);
+
+          // update list status text
+          $("#preorder-" + pid + " .status").text(update.preorder.status.code + " - " + update.preorder.status.text);
+          $("#preorder-" + pid + " .status").addClass("text-success");
+          setTimeout(() => { $("#preorder-" + pid + " .status").removeClass("text-success") }, 1500);
+          
+          // update status id data attribute
+          $("#preorder-detail-status-" + pid + "-text").data("status-id", update.preorder.status.id);
+        }
         
-        $("#preorder-detail-status-" + pid + "-text").addClass("text-success");
-        setTimeout(() => { $("#preorder-detail-status-" + pid + "-text").removeClass("text-success") }, 1500);
+        if("building" in update) {
+          $("#preorder-detail-building-status-" + pid).text(update.building.status.code + " - " + update.building.status.text);
+        }
+        if("unit" in update) {
+          $("#preorder-detail-unit-status-" + pid).text(update.unit.status.code + " - " + update.unit.status.text);
+        }
         
-        $("#preorder-" + pid + " .status").text(success.result.status_code + " - " + success.result.status_text);
-        $("#preorder-" + pid + " .status").addClass("text-success");
-        setTimeout(() => { $("#preorder-" + pid + " .status").removeClass("text-success") }, 1500);
         toggleStatusControl(pid);
+        
       }
     },
     'json');
diff --git a/application/ADBStatus/ADBStatusModel.php b/application/ADBStatus/ADBStatusModel.php
index 172a8748b..6dbc36190 100644
--- a/application/ADBStatus/ADBStatusModel.php
+++ b/application/ADBStatus/ADBStatusModel.php
@@ -1,6 +1,6 @@
 <?php
 
-class StatusModel {
+class ADBStatusModel {
   public $code;
   public $name;
   
@@ -10,7 +10,7 @@ class StatusModel {
   public $edit;
   
   public static function create(Array $data) {
-    $model = new Status();
+    $model = new ADBStatus();
     
     foreach($data as $field => $value) {
       if(property_exists(get_called_class(), $field)) {
@@ -39,7 +39,7 @@ class StatusModel {
   public static function getAll() {
     $items = [];
     
-    $db = FronkDB::singleton();
+    $db = FronkDB::singleton(ADDRESSDB_DBHOST, ADDRESSDB_DBUSER, ADDRESSDB_DBPASS, ADDRESSDB_DBNAME);
     
     $res = $db->select("Status", "*");
     if($db->num_rows($res)) {
@@ -52,13 +52,13 @@ class StatusModel {
   }
   
   public static function getFirst($filter = false) {
-    $db = FronkDB::singleton();
+    $db = FronkDB::singleton(ADDRESSDB_DBHOST, ADDRESSDB_DBUSER, ADDRESSDB_DBPASS, ADDRESSDB_DBNAME);
     
     $where = self::getSqlFilter($filter);
     $res = $db->select("Status", "*", "$where ORDER BY code, name");
     if($db->num_rows($res)) {
       $data = $db->fetch_object($res);
-      $item = new Status($data);
+      $item = new ADBStatus($data);
       if($item->id) {
         return $item;
       } else {
@@ -69,7 +69,7 @@ class StatusModel {
   }
   
   public static function count($filter) {
-    $db = FronkDB::singleton();
+    $db = FronkDB::singleton(ADDRESSDB_DBHOST, ADDRESSDB_DBUSER, ADDRESSDB_DBPASS, ADDRESSDB_DBNAME);
     
     $where = self::getSqlFilter($filter);
     $sql = "SELECT COUNT(*) as cnt FROM Status
@@ -88,7 +88,7 @@ class StatusModel {
   
   public static function search($filter, $limit = false) {
     $items = [];
-    $db = FronkDB::singleton();
+    $db = FronkDB::singleton(ADDRESSDB_DBHOST, ADDRESSDB_DBUSER, ADDRESSDB_DBPASS, ADDRESSDB_DBNAME);
     
     $where = self::getSqlFilter($filter);
     
@@ -110,7 +110,7 @@ class StatusModel {
     $res = $db->query($sql);
     if($db->num_rows($res)) {
       while($data = $db->fetch_object($res)) {
-        $items[] = new Status($data);
+        $items[] = new ADBStatus($data);
       }
     }
     return $items;
diff --git a/application/Admin/AdminController.php b/application/Admin/AdminController.php
index 90fedd71f..310515260 100644
--- a/application/Admin/AdminController.php
+++ b/application/Admin/AdminController.php
@@ -151,7 +151,7 @@ class AdminController extends mfBaseController {
   }
   
   protected function ivtAdminImportAction() {
-    //exit;
+    exit;
     $doit = false;
     if($this->request->doit == 1) {
       $doit = true;
diff --git a/application/Admin/functions/IvtAdminImport.php b/application/Admin/functions/IvtAdminImport.php
index 217ef5c20..83cc34e81 100644
--- a/application/Admin/functions/IvtAdminImport.php
+++ b/application/Admin/functions/IvtAdminImport.php
@@ -12,7 +12,7 @@ class Admin_IvtAdminImport {
     $data = [];
     $data['ignore'] = 0;
     $data["contracts"] = [];
-    foreach(IvtCustomerProductModel::search(["pid" => 784]) as $ivt_contract) {
+    foreach(IvtCustomerProductModel::getAll() as $ivt_contract) {
       $ivt_customer = $ivt_contract->customer;
       $ivt_product = $ivt_contract->product;
       
diff --git a/application/Preorder/Preorder.php b/application/Preorder/Preorder.php
index 6de90e508..8b06eb9f8 100644
--- a/application/Preorder/Preorder.php
+++ b/application/Preorder/Preorder.php
@@ -24,6 +24,18 @@ class Preorder extends mfBaseModel {
   }
   
   public function afterSave() {
+    // reset auto magic properties
+    $this->status = null;
+    $this->campaign = null;
+    $this->partner = null;
+    $this->building = null;
+    $this->adb_hausnummer = null;
+    $this->adb_wohneinheit = null;
+    $this->services = null;
+    $this->ordered_services = null;
+    $this->creator = null;
+    $this->editor = null;
+    
     // prevent potential infinite loop
     if($this->in_after_save) return true;
     $this->in_after_save = true;
@@ -35,6 +47,95 @@ class Preorder extends mfBaseModel {
     if($this->oaid != $old_oaid) {
       $this->save();
     }
+    
+    // Cascade status changes down to adb_hausnummer and adb_wohneinheit
+    $this->cascadeStatus();
+  }
+  
+  /*
+   * Cascade status changes down to adb_hausnummer and adb_wohneinheit
+   */
+  public function cascadeStatus() {
+    
+    /*
+     * defines status alignments of preorder status to hausnummer (h) and wohneinheit (w)
+     * if h or w are greater than defined here, don't change them
+     * 
+     * $statusmatrix = [
+     *   "preorder_status_code" => [
+     *     "h" => adb_status_code,
+     *     "w" => adb_status_code
+     *   ]
+     * ]
+     */
+    
+    if(!$this->adb_hausnummer_id && !$this->adb_wohneinheit_id) {
+      return true;
+    }
+    
+    if(!defined("TT_PREORDER_STATUS_MATRIX") || !is_array(TT_PREORDER_STATUS_MATRIX) || !count(TT_PREORDER_STATUS_MATRIX)) {
+      $this->log->warning(__METHOD__.": TT_PREORDER_STATUS_MATRIX undefined! Cannot cascade Preorder status to Hausnummer and Wohneinheit");
+      return true;
+    }
+    
+    $new_status = new Preorderstatus($this->status_id);
+    if(!$new_status->id) {
+      $this->log->warning(__METHOD__.": Preorder has invalid status!");
+      return true;
+    }
+    
+    if(!array_key_exists($new_status->code, TT_PREORDER_STATUS_MATRIX)) {
+      return true;
+    }
+    
+    $cascade = TT_PREORDER_STATUS_MATRIX[$new_status->code];
+    
+    if($cascade["h"] && $this->adb_hausnummer_id) {
+      // set new hausnummer status
+      $new_hausnummer_status = ADBStatusModel::getFirst(["code" => $cascade["h"]]);
+      if(!$new_hausnummer_status) {
+        $this->log->warning(__METHOD__.": new ADBStatus code ".$cascade["h"]." not found!");
+        return true;
+      }
+      
+      $hausnummer = new ADBHausnummer($this->adb_hausnummer_id);
+      if(!$hausnummer->id) {
+        $this->log->warning(__METHOD__.": hausnummer ".$this->adb_hausnummer_id." not found!");
+        return true;
+      }
+      
+      $this->log->debug(__METHOD__.": new hausnummer status code ".$new_hausnummer_status->code);
+      
+      // only update if current status is less than new status
+      if($hausnummer->status->code < $new_hausnummer_status->code) {
+        $this->log->debug(__METHOD__.": Setting new hausnummer status code: ".$new_hausnummer_status->code);
+        $hausnummer->status_id = $new_hausnummer_status->id;
+        $hausnummer->save();
+      }
+    }
+    
+    if($cascade["w"] && $this->adb_wohneinheit_id) {
+      // set new wohneinheit status
+      $new_wohneinheit_status = ADBStatusModel::getFirst(["code" => $cascade["w"]]);
+      if(!$new_wohneinheit_status) {
+        $this->log->warning(__METHOD__.": new ADBStatus code ".$cascade["w"]." not found!");
+        return true;
+      }
+      
+      $wohneinheit = new ADBWohneinheit($this->adb_wohneinheit_id);
+      if(!$wohneinheit->id) return true;
+      
+      $this->log->debug(__METHOD__.": new wohneinheit status code ".$new_wohneinheit_status->code);
+      // only update if current status is less than new status
+      if($wohneinheit->status->code < $new_wohneinheit_status->code) {
+        $this->log->debug(__METHOD__.": Setting new wohneinheit status code: ".$new_wohneinheit_status->code);
+        $wohneinheit->status_id = $new_wohneinheit_status->id;
+        $wohneinheit->save();
+      }
+    }
+    
+    return true;
+    
   }
   
   public function setOrCreateOaid($oaid_attributes = false) {
diff --git a/application/Preorder/PreorderController.php b/application/Preorder/PreorderController.php
index bdc9848b5..edb2c4640 100644
--- a/application/Preorder/PreorderController.php
+++ b/application/Preorder/PreorderController.php
@@ -963,7 +963,38 @@ class PreorderController extends mfBaseController {
     $preorder->status_id = $status_id;
     $preorder->save();
     
-    return ["message" => "Status saved successfully", "id" => $preorder_id, "status_id" => $status->id, "status_code" => $status->code, "status_text" => $status->name];
+    
+    $update = [
+      "preorder" => [
+        "status" => [
+          "id" => $status->id,
+          "code" => $status->code,
+          "text" => $status->name
+        ]
+      ]
+    ];
+    
+    if($preorder->adb_hausnummer_id) {
+      $update["building"] = [
+        "status" => [
+          "id" => $preorder->adb_hausnummer->status->id,
+          "code" => $preorder->adb_hausnummer->status->code,
+          "text" => $preorder->adb_hausnummer->status->name
+        ]
+      ];
+    }
+    
+    if($preorder->adb_wohneinheit_id) {
+      $update["unit"] = [
+        "status" => [
+          "id" => $preorder->adb_wohneinheit->status->id,
+          "code" => $preorder->adb_wohneinheit->status->code,
+          "text" => $preorder->adb_wohneinheit->status->name
+        ]
+      ];
+    }
+    
+    return ["message" => "Status saved successfully", "id" => $preorder_id, "update" => $update];
   }
   
 }
\ No newline at end of file