diff --git a/Layout/default/Preorder/Index.php b/Layout/default/Preorder/Index.php
index 39d0c109e..d5a61ba9d 100644
--- a/Layout/default/Preorder/Index.php
+++ b/Layout/default/Preorder/Index.php
@@ -1358,14 +1358,25 @@ $pagination_entity_name = "Vorbestellungen";
         /*
         * Globals for map display
         */
-        var borderpoly = [];
-        <?php if(isset($campaign) && $campaign && $campaign->adb_netzgebiet): ?>
-        borderpoly = <?=($campaign->adb_netzgebiet->borderpoly) ? $campaign->adb_netzgebiet->borderpoly : "[]"?>;
-        <?php elseif($me->is("Admin")): ?>
-        borderpoly = [];
-        <?php foreach(ADBNetzgebietModel::search(["borderpoly" => true]) as $bp_netz): ?>
-        borderpoly.push(<?=$bp_netz->borderpoly?>);
-        <?php endforeach; ?>
+        var borderpolies = [];
+        <?php if($me->is("Admin")): ?>
+            <?php foreach(ADBNetzgebietModel::search(["borderpoly" => true]) as $bp_netz): ?>
+            borderpolies.push([<?=$bp_netz->borderpoly?>]);
+            <?php endforeach; ?>
+        <?php elseif(isset($campaign) && $campaign):
+            $adb_networks = [];
+            if(is_array($campaign->salesclusters) && count($campaign->salesclusters)) {
+                $adb_networks = $campaign->salesclusters;
+            } else {
+                $adb_networks = [$campaign->adb_netzgebiet];
+            }
+
+            if(count($adb_networks)): ?>
+                <?php foreach($adb_networks as $network): ?>
+                    borderpoly = <?=($network->borderpoly) ?: "[]"?>;
+                    borderpolies.push(borderpoly);
+                <?php endforeach; ?>
+            <?php endif; ?>
         <?php endif; ?>
 
         var preorderMap;
@@ -1441,17 +1452,20 @@ $pagination_entity_name = "Vorbestellungen";
 
 
         function addMarkers() {
-            if(borderpoly) {
-                var border = L.polygon(borderpoly, {
-                    fillColor: 'blue',
-                    weight: 8,
-                    opacity: 0.5,
-                    color: 'violet',  //Outline color
-                    fillOpacity: 0.05
-                }).addTo(preorderMap);
+            if(borderpolies) {
+                borderpolies.forEach(function(borderpoly) {
+                    var border = L.polygon(borderpoly, {
+                        fillColor: 'blue',
+                        weight: 8,
+                        opacity: 0.5,
+                        color: 'violet',  //Outline color
+                        fillOpacity: 0.05
+                    }).addTo(preorderMap);
+                });
+
             }
 
-            if(!Array.isArray(preorders) | !preorders.length) {
+            if(!Array.isArray(preorders) || !preorders.length) {
                 return false;
             }
             // draw markers and calculate center position
diff --git a/application/Preorder/PreorderController.php b/application/Preorder/PreorderController.php
index 2047d3515..2379756eb 100644
--- a/application/Preorder/PreorderController.php
+++ b/application/Preorder/PreorderController.php
@@ -1565,9 +1565,7 @@ class PreorderController extends mfBaseController {
             }
         }
 
-        if(!$filter['preordercampaign_id']) $filter['preordercampaign_id'] = 0;
-
-
+        if(!array_key_exists("preordercampaign_id", $filter) || !$filter['preordercampaign_id']) $filter['preordercampaign_id'] = 0;
 
         if(in_array("preorders", $type)) {
             $this->log->debug(__METHOD__.": requested preorders");