diff --git a/Layout/default/Preorder/include/preorder-detail.php b/Layout/default/Preorder/include/preorder-detail.php
index 6593dbdd4..013b71be9 100644
--- a/Layout/default/Preorder/include/preorder-detail.php
+++ b/Layout/default/Preorder/include/preorder-detail.php
@@ -6,6 +6,9 @@
       <div class="col-12">
         <ul class="nav nav-tabs order-tab">
           <li class="nav-item"><a class="nav-link active" href="#preorder-detail-<?=$preorder->id?>-detail" data-toggle="tab" aria-expanded="false">Bestellung</a></li>
+          <?php if($preorder->cancel_request): ?>
+            <li class="nav-item"><a class="nav-link" href="#preorder-detail-<?=$preorder->id?>-cancelation" data-toggle="tab" aria-expanded="false">Storno/Kündigung</a></li>
+          <?php endif; ?>
           <li class="nav-item"><a class="nav-link" href="#preorder-detail-<?=$preorder->id?>-address" data-toggle="tab" aria-expanded="false">Adressdetails</a></li>
           <li class="nav-item"><a class="nav-link" href="#preorder-detail-<?=$preorder->id?>-flags" data-toggle="tab" aria-expanded="false">Status</a></li>
           <?php if($preorder->campaign->fulfillment != "citycom_oan"): ?>
@@ -293,6 +296,47 @@
         </div>
       </div>
 
+        <?php if($preorder->cancel_request): ?>
+        <div id="preorder-detail-<?=$preorder->id?>-cancelation" class="tab-pane">
+            <div class="row justify-content-center">
+                <div class="col-12">
+                    <div class="card">
+                        <div class="card-body">
+
+                            <div class="card-header bg-info text-white pl-2 pr-2 pt-1 pb-1">Storno/Kündigung</div>
+
+                            <div class="row">
+                                <div class="col-6">
+                                    <h3>Storno / Kündigung</h3>
+
+                                    <table class="table table-sm table-striped">
+                                        <tr>
+                                            <th>Kündigungsdatum</th>
+                                            <td class="text-monospace"><?=($preorder->cancel_request_execution_date) ? (new DateTime($preorder->cancel_request_execution_date))->format("d.m.Y") : ""?></td>
+                                        </tr><tr>
+                                            <th>Demontage ab</th>
+                                            <td class="text-monospace"><?=($preorder->cancel_request_execution_date) ? (new DateTime($preorder->cancel_request_execution_date))->modify("+1 day")->format("d.m.Y") : ""?></td>
+                                        </tr><tr>
+                                            <th>Kündigungsgrund</th>
+                                            <td class="text-monospace"><?=$preorder->cancel_request_status->code?> - <?=$preorder->cancel_request_status->name?></td>
+                                        </tr><tr>
+                                            <th>Kündigung erstellt</th>
+                                            <td class="text-monospace"><?=date("d.m.Y H:i", $preorder->cancel_request)?> (<?=$preorder->cancel_request_creator->name?>)</td>
+                                        </tr>
+                                    </table>
+
+                                    <button type="button" class="btn btn-success" onclick="approveCancelRequest(<?=$preorder->id?>)"><i class="fas fa-check"></i> Kündigung freigeben</button>
+                                    <button type="button" class="btn btn-danger ml-2" onclick="denyCancelRequest(<?=$preorder->id?>)"><i class="fas fa-xmark"></i> Kündigung ablehnen</button>
+
+                                </div>
+                            </div>
+                        </div>
+                    </div>
+                </div>
+            </div>
+        </div>
+        <?php endif; ?>
+
       <div id="preorder-detail-<?=$preorder->id?>-address" class="tab-pane">
         <div class="row justify-content-center">
           <div class="col-12">
diff --git a/application/Preorder/Preorder.php b/application/Preorder/Preorder.php
index 1652bebc1..acafb8603 100644
--- a/application/Preorder/Preorder.php
+++ b/application/Preorder/Preorder.php
@@ -24,6 +24,8 @@ class Preorder extends mfBaseModel {
     private $citycomoan; // ONT data
     private $ctags; // network-keyed array of Ctags
     private $statusjournals;
+    private $cancel_request_status;
+    private $cancel_request_creator;
 
     protected function beforeUpdate($data) {
         if(!array_key_exists("edit_by", $data)) {
@@ -1573,19 +1575,6 @@ class Preorder extends mfBaseModel {
 
             }
 
-            if($name == "creator") {
-                $user = mfValuecache::singleton()->get("Worker-id-" . $this->create_by);
-                if($user) {
-                    $this->creator = $user;
-                    return $this->creator;
-                }
-                $this->creator = new User($this->create_by);
-                if($this->creator->id) {
-                    mfValuecache::singleton()->set("Worker-id-" . $this->create_by, $this->creator);
-                }
-                return $this->creator;
-            }
-
             if($name === 'fcp') {
                 if(!$this->adb_hausnummer->fcp_id) return null;
                 return ADBRimoFcp::get($this->adb_hausnummer->fcp_id);
@@ -1605,8 +1594,69 @@ class Preorder extends mfBaseModel {
                 return $this->ctags;
             }
 
+            if($name == "cancel_request_status") {
+                if(!$this->cancel_request_status_code) return null;
+
+                $this->cancel_request_status = mfValuecache::singleton()->get("mfObjectmodel-Preorderstatus-code-" . $this->cancel_request_status_code);
+                if(!$this->cancel_request_status) {
+                    $cancel_request_status = PreorderstatusModel::getFirst(["code" => $this->cancel_request_status_code]);
+                    if($cancel_request_status) {
+                        mfValuecache::singleton()->set("mfObjectmodel-Preorderstatus-code-" . $this->cancel_request_status_code, $cancel_request_status);
+                        $this->cancel_request_status = $cancel_request_status;
+                    }
+                }
+                return $this->cancel_request_status;
+            }
+
+            if($name == "cancel_request_creator") {
+                $user = mfValuecache::singleton()->get("Worker-id-" . $this->cancel_request_by);
+                if($user) {
+                    $this->cancel_request_creator = $user;
+                    return $this->cancel_request_creator;
+                }
+                $this->cancel_request_creator = new User($this->cancel_request_by);
+                if($this->cancel_request_creator->id) {
+                    mfValuecache::singleton()->set("Worker-id-" . $this->cancel_request_by, $this->cancel_request_creator);
+                }
+                return $this->cancel_request_creator;
+            }
+
+            if($name == "cancel_approver") {
+                $user = mfValuecache::singleton()->get("Worker-id-" . $this->cancel_approved_by);
+                if($user) {
+                    $this->cancel_approver = $user;
+                    return $this->cancel_approver;
+                }
+                $this->cancel_approver = new User($this->cancel_approved_by);
+                if($this->cancel_approver->id) {
+                    mfValuecache::singleton()->set("Worker-id-" . $this->cancel_approved_by, $this->cancel_approver);
+                }
+                return $this->editor;
+            }
+
+            if($name == "creator") {
+                $user = mfValuecache::singleton()->get("Worker-id-" . $this->create_by);
+                if($user) {
+                    $this->creator = $user;
+                    return $this->creator;
+                }
+                $this->creator = new User($this->create_by);
+                if($this->creator->id) {
+                    mfValuecache::singleton()->set("Worker-id-" . $this->create_by, $this->creator);
+                }
+                return $this->creator;
+            }
+
             if($name == "editor") {
+                $user = mfValuecache::singleton()->get("Worker-id-" . $this->edit_by);
+                if($user) {
+                    $this->editor = $user;
+                    return $this->editor;
+                }
                 $this->editor = new User($this->edit_by);
+                if($this->editor->id) {
+                    mfValuecache::singleton()->set("Worker-id-" . $this->edit_by, $this->editor);
+                }
                 return $this->editor;
             }
 
diff --git a/application/Preorder/PreorderController.php b/application/Preorder/PreorderController.php
index f7b1cb584..8ee9418c7 100644
--- a/application/Preorder/PreorderController.php
+++ b/application/Preorder/PreorderController.php
@@ -1090,6 +1090,12 @@ class PreorderController extends mfBaseController {
             case "saveStatusJournal":
                 $return = $this->saveStatusJournalApi();
                 break;
+            case "approveCancelRequest":
+                $return = $this->approveCancelRequest();
+                break;
+            case "denyCancelRequest":
+                $return = $this->denyCancelRequest();
+                break;
             default:
                 $return = false;
         }
@@ -1108,6 +1114,49 @@ class PreorderController extends mfBaseController {
         }
     }
 
+    protected function approveCancelRequest() {
+        return true; // disabled
+
+        $preorder_id = $this->request->pid;
+
+        $preorder = new Preorder($preorder_id);
+        if(!$preorder->id) {
+            $this->log->debug(__METHOD__.": Preorder $preorder_id not found");
+            return false;
+        }
+
+        if(!$preorder->cancel_request) {
+            $this->log->debug(__METHOD__.": Preorder $preorder_id has no cancel request");
+            return false;
+        }
+    }
+
+    protected function denyCancelRequest() {
+        return true; // disabled
+
+        $preorder_id = $this->request->pid;
+
+        $preorder = new Preorder($preorder_id);
+        if(!$preorder->id) {
+            $this->log->debug(__METHOD__.": Preorder $preorder_id not found");
+            return false;
+        }
+
+        if(!$preorder->cancel_request) {
+            $this->log->debug(__METHOD__.": Preorder $preorder_id has no cancel request");
+            return false;
+        }
+
+        // empty all cancel request fields
+        $preorder->cancel_request = null;
+        $preorder->cancel_request_by = null;
+        $preorder->cancel_request_status_code = null;
+        $preorder->cancel_request_execution_date = null;
+        $preorder->save();
+
+        return ["message" => "Cancel request removed"];
+    }
+
     protected function saveStatusJournalApi() {
         $preorder_id = $this->request->preorder_id;
         $text = $this->request->text;
diff --git a/db/migrations/20250911134343_preorder_add_cancel_request_status_code.php b/db/migrations/20250911134343_preorder_add_cancel_request_status_code.php
new file mode 100644
index 000000000..3a268dfe4
--- /dev/null
+++ b/db/migrations/20250911134343_preorder_add_cancel_request_status_code.php
@@ -0,0 +1,32 @@
+<?php
+declare(strict_types=1);
+
+use Phinx\Migration\AbstractMigration;
+
+final class PreorderAddCancelRequestStatusCode extends AbstractMigration
+{
+    public function up(): void
+    {
+        if($this->getEnvironment() == "thetool") {
+            $table = $this->table("Preorder");
+            $table->addColumn("cancel_request_status_code", "string", ["null" => true, "default" => null, "limit" => 64, "after" => "cancel_request_by"]);
+            $table->addColumn("cancel_request_execution_date", "date", ["null" => true, "default" => null, "limit" => 64, "after" => "cancel_request_status_code"]);
+            $table->update();
+        }
+        
+        if($this->getEnvironment() == "addressdb") {
+          
+        }
+    }
+
+    public function down(): void
+    {
+        if($this->getEnvironment() == "thetool") {
+            $this->table("Preorder")->removeColumn("cancel_request_status_code")->update();
+        }
+        
+        if($this->getEnvironment() == "addressdb") {
+
+        }
+    }
+}