diff --git a/Layout/default/Address/Index.php b/Layout/default/Address/Index.php
index 87a66a6a3..d405efcec 100644
--- a/Layout/default/Address/Index.php
+++ b/Layout/default/Address/Index.php
@@ -232,6 +232,7 @@
                 <td style="text-align: left; letter-spacing: 4px; font-size: 1.1em;">
                   <a href="<?=self::getUrl("User", "Index", ["filter" => ["address_id" => $address->id]])?>" title="Benutzer anzeigen"><i class="fas fa-users"></i></a>
                   <a href="<?=self::getUrl("Address", "view", ["id" => $address->id, 's' => $pagination['start']])?>"><i class="far fa-eyes"  title="Anzeigen"></i></a>
+                  <a href="#" onclick="openCreateTicketModal('<?=$address->getFullName()?>', '<?=$address->customer_number?>', '<?=$address->street . ', ' . $address->zip . ' ' . $address->city?>', '<?=$address->phone?>', '<?=$address->email?>', '<?=$address->spin?>')" title="Störungs-Ticket erstellen" class="text-warning"><i class="fas fa-exclamation-triangle"></i></a>
                   <a href="<?=self::getUrl("Address", "edit", ["id" => $address->id, 's' => $pagination['start']])?>"><i class="far fa-edit"  title="Bearbeiten"></i></a>
                   <a href="<?=self::getUrl("Address", "delete", ["id" => $address->id, 's' => $pagination['start']])?>" onclick="if(!confirm('Person/Firma wirklich löschen?')) return false;" class="text-danger" title="Löschen"><i class="fas fa-trash"></i></a>
                 </td>
@@ -249,6 +250,122 @@
       </div>
     </div>
 
+<!-- CREATE TICKET MODAL START -->
+
+<!--add a bootstrap modal here and below add a new <script> which creates a form for self::getUrl("Address", "createTicket") with post parameters
+string $subject, string $description, string $customer_name, string $customer_number, string $customer_address, string $customer_phone_number, string $customer_email, string $customer_service_ping
+-->
+
+<div class="modal" id="createTicketModal" tabindex="-1" role="dialog" aria-labelledby="createTicketModalLabel" aria-hidden="true">
+  <div class="modal-dialog modal-lg" role="document">
+    <div class="modal-content">
+        <div class="modal-header">
+          <h5 class="modal-title" id="createTicketModalLabel">Störungs-Ticket erstellen</h5>
+          <button type="button" class="close" data-dismiss="modal" aria-label="Close">
+            <span aria-hidden="true">&times;</span>
+          </button>
+        </div>
+
+        <div class="modal-body">
+            <form id="createTicketForm">
+              <div class="row">
+                <div class="col-6">
+                  <label class="form-label required" for="subject">Betreff</label>
+                    <input type="text" class="form-control" name="subject" id="subject" required="required" />
+                </div>
+                  <div class="col-6">
+                      <label class="form-label required" for="description">Beschreibung</label>
+                      <textarea class="form-control" name="description" id="description" required="required"></textarea>
+                  </div>
+                  <div class="col-6">
+                      <label class="form-label required" for="customer_name">Kundenname</label>
+                      <input type="text" class="form-control" name="customer_name" id="customer_name" required="required" />
+                  </div>
+                  <div class="col-6">
+                      <label class="form-label required" for="customer_number">Kundennummer</label>
+                      <input type="text" class="form-control" name="customer_number" id="customer_number" required="required" />
+                  </div>
+                  <div class="col-6">
+                      <label class="form-label required" for="customer_address">Kundenadresse</label>
+                      <input type="text" class="form-control" name="customer_address" id="customer_address" required="required" />
+                  </div>
+                  <div class="col-6">
+                      <label class="form-label required" for="customer_phone_number">Telefon</label>
+                      <input type="text" class="form-control" name="customer_phone_number" id="customer_phone_number" required="required" />
+                  </div>
+                  <div class="col-6">
+                      <label class="form-label required" for="customer_email">Email</label>
+                      <input type="text" class="form-control" name="customer_email" id="customer_email" required="required" />
+                  </div>
+                  <div class="col-6">
+                      <label class="form-label required" for="customer_service_pin">Service-Pin</label>
+                      <input type="text" class="form-control" name="customer_service_pin" id="customer_service_pin" required="required" />
+                  </div>
+              </div>
+
+<!--                add submit and close button here-->
+                <div class="modal-footer">
+                    <button type="submit" class="btn btn-primary">Ticket erstellen</button>
+                    <button type="button" class="btn btn-secondary" data-dismiss="modal" @click="closeModal">Schließen</button>
+                </div>
+
+            </form>
+        </div>
+
+          <script>
+              const newTicketUrl = '<?=self::getUrl("Address", "createTicket")?>';
+
+              function openCreateTicketModal(customer_name, customer_number, customer_address, customer_phone_number, customer_email, customer_service_pin) {
+                  $("#createTicketModal").modal("show");
+                  $("#subject").val('');
+                  $("#description").val('');
+                  $("#customer_name").val(customer_name);
+                  $("#customer_number").val(customer_number);
+                  $("#customer_address").val(customer_address);
+                  $("#customer_phone_number").val(customer_phone_number);
+                  $("#customer_email").val(customer_email);
+                  $("#customer_service_pin").val(customer_service_pin);
+              }
+
+              document.getElementById('createTicketForm').addEventListener('submit', submitNewTicket);
+
+              function submitNewTicket(e) {
+                  e.preventDefault();
+                  const data = {
+                      subject: $("#subject").val(),
+                      description: $("#description").val(),
+                      customer_name: $("#customer_name").val(),
+                      customer_number: $("#customer_number").val(),
+                      customer_address: $("#customer_address").val(),
+                      customer_phone_number: $("#customer_phone_number").val(),
+                      customer_email: $("#customer_email").val(),
+                      customer_service_pin: $("#customer_service_pin").val()
+                  };
+
+                  $.post(newTicketUrl, data, function(response) {
+                        response = JSON.parse(response);
+                        console.log(response);
+                      if(response.id) {
+                            window.open('https://project.xinon.at/projects/storungen-and-support/work_packages/' + response.id + '/activity', '_blank');
+                          closeModal();
+                      } else {
+                          alert("Fehler beim Erstellen des Tickets.");
+                      }
+                  });
+              }
+
+              function closeModal() {
+                  $("#createTicketModal").modal("hide");
+                  // set all input fields to empty
+                  $("#createTicketForm").trigger("reset");
+              }
+
+          </script>
+
+<!-- CREATE TICKET MODAL END -->
+
+
+
     <script type="text/javascript">
       $("#filter_addresstype").select2({closeOnSelect: false});
       
diff --git a/Layout/default/User/Form.php b/Layout/default/User/Form.php
index 3845dbb8c..f19912276 100644
--- a/Layout/default/User/Form.php
+++ b/Layout/default/User/Form.php
@@ -68,10 +68,14 @@
                   <option value="true" <?=(isset($user) && $user->is("employee")) ? "selected='selected'" : ""?>>Yes</option>
                 </select>
               </div>
-              <div class="form-group <?=(!isset($user) || !$user->is("employee")) ? "hidden" : ""?>" id="employee-number-container">
-                <label for="employee_number"><span class="text-warning font-weight-bold font-16">X</span><span class="text-primary font-weight-bold">inon</span> Mitarbeiternummer:</label>
-                <input type="text" id="employee_number" name="employee_number" class="form-control" value="<?=(isset($user)) ? (new WorkerFlag($user->id, "employee_number"))->value() : ""?>" />
-              </div>
+                <div class="form-group <?=(!isset($user) || !$user->is("employee")) ? "hidden" : ""?>" id="employee-number-container">
+                    <label for="employee_number"><span class="text-warning font-weight-bold font-16">X</span><span class="text-primary font-weight-bold">inon</span> Mitarbeiternummer:</label>
+                    <input type="text" id="employee_number" name="employee_number" class="form-control" value="<?=(isset($user)) ? (new WorkerFlag($user->id, "employee_number"))->value() : ""?>" />
+                </div>
+                <div class="form-group <?=(!isset($user) || !$user->is("employee")) ? "hidden" : ""?>" id="project-api-key-container">
+                    <label for="project_api_key">Project API Key:</label>
+                    <input type="text" id="project_api_key" name="project_api_key" class="form-control" value="<?=(isset($user)) ? (new WorkerFlag($user->id, "project_api_key"))->value() : ""?>" />
+                </div>
               <div class="form-group">
                 <label for="technician">Techniker:</label>
                 <select name="technician" id="technician" class="form-control">
diff --git a/application/Address/AddressController.php b/application/Address/AddressController.php
index 60b475168..77beb4149 100644
--- a/application/Address/AddressController.php
+++ b/application/Address/AddressController.php
@@ -623,6 +623,32 @@ class AddressController extends mfBaseController {
     return false;
     
   }
-  
 
+  public function createTicketAction() {
+//      die('{"derivedStartDate":null,"derivedDueDate":null,"spentTime":"PT0S","laborCosts":"0,00 EUR","materialCosts":"0,00 EUR","overallCosts":"0,00 EUR","_embedded":{"attachments":{"_type":"Collection","total":0,"count":0,"_embedded":{"elements":[]},"_links":{"self":{"href":"/api/v3/work_packages/6664/attachments"}}},"relations":{"_type":"Collection","total":0,"count":0,"_embedded":{"elements":[]},"_links":{"self":{"href":"/api/v3/work_packages/6664/relations"}}},"type":{"_type":"Type","id":12,"name":"Störung","color":"#FF3300","position":4,"isDefault":true,"isMilestone":false,"createdAt":"2023-02-22T20:19:25Z","updatedAt":"2023-02-23T11:59:16Z","_links":{"self":{"href":"/api/v3/types/12","title":"Störung"}}},"priority":{"_type":"Priority","id":8,"name":"Residential","position":2,"color":"#74C0FC","isDefault":true,"isActive":true,"_links":{"self":{"href":"/api/v3/priorities/8","title":"Residential"}}},"project":{"_type":"Project","id":10,"identifier":"storungen-and-support","name":"Störungen & Support","active":true,"public":false,"description":{"format":"markdown","raw":"","html":""},"createdAt":"2023-02-22T19:45:24Z","updatedAt":"2024-01-19T19:56:27Z","statusExplanation":{"format":"markdown","raw":"","html":""},"_links":{"self":{"href":"/api/v3/projects/10","title":"Störungen & Support"},"createWorkPackage":{"href":"/api/v3/projects/10/work_packages/form","method":"post"},"createWorkPackageImmediately":{"href":"/api/v3/projects/10/work_packages","method":"post"},"workPackages":{"href":"/api/v3/projects/10/work_packages"},"categories":{"href":"/api/v3/projects/10/categories"},"versions":{"href":"/api/v3/projects/10/versions"},"memberships":{"href":"/api/v3/memberships?filters=%5B%7B%22project%22%3A%7B%22operator%22%3A%22%3D%22%2C%22values%22%3A%5B%2210%22%5D%7D%7D%5D"},"types":{"href":"/api/v3/projects/10/types"},"schema":{"href":"/api/v3/projects/schema"},"status":{"href":null},"ancestors":[{"href":"/api/v3/projects/5","title":"XINON"}],"parent":{"href":"/api/v3/projects/5","title":"XINON"}}},"status":{"_type":"Status","id":1,"name":"Neu","isClosed":false,"color":"#1098AD","isDefault":true,"isReadonly":false,"defaultDoneRatio":null,"position":1,"_links":{"self":{"href":"/api/v3/statuses/1","title":"Neu"}}},"author":{"_type":"User","id":30,"name":"Luca Haid","createdAt":"2024-02-05T11:35:52Z","updatedAt":"2024-10-21T06:32:44Z","login":"luca.haid@xinon.eu","firstName":"Luca","lastName":"Haid","email":"luca.haid@xinon.eu","avatar":"https://secure.gravatar.com/avatar/37a35a87af3c506c1ce722826834ce38?default=404&secure=true","status":"active","identityUrl":null,"language":"de","_links":{"self":{"href":"/api/v3/users/30","title":"Luca Haid"},"memberships":{"href":"/api/v3/memberships?filters=%5B%7B%22principal%22%3A%7B%22operator%22%3A%22%3D%22%2C%22values%22%3A%5B%2230%22%5D%7D%7D%5D","title":"Mitglieder"},"showUser":{"href":"/users/30","type":"text/html"}}},"customActions":[],"costsByType":{"_type":"Collection","total":0,"count":0,"_embedded":{"elements":[]},"_links":{"self":{"href":"/api/v3/work_packages/6664/summarized_costs_by_type"}}}},"_type":"WorkPackage","id":6664,"lockVersion":1,"subject":"tes","description":{"format":"markdown","raw":"ttest","html":"<p class=\"op-uc-p\">ttest</p>"},"scheduleManually":false,"startDate":null,"dueDate":null,"estimatedTime":null,"derivedEstimatedTime":null,"duration":null,"ignoreNonWorkingDays":false,"percentageDone":0,"createdAt":"2024-10-31T12:48:27Z","updatedAt":"2024-10-31T12:48:27Z","readonly":false,"remainingTime":null,"customField1":null,"customField2":"4 Quality GmbH & Co KG","customField3":"Grazerstraße 87, 8111 Judendorf-Straßengel","customField4":"test","customField5":"office@4quality.at","customField6":"2215","customField7":"ZE4889","_links":{"attachments":{"href":"/api/v3/work_packages/6664/attachments"},"addAttachment":{"href":"/api/v3/work_packages/6664/attachments","method":"post"},"self":{"href":"/api/v3/work_packages/6664","title":"tes"},"update":{"href":"/api/v3/work_packages/6664/form","method":"post"},"schema":{"href":"/api/v3/work_packages/schemas/10-12"},"updateImmediately":{"href":"/api/v3/work_packages/6664","method":"patch"},"logTime":{"href":"/api/v3/time_entries","title":"Log time on tes"},"move":{"href":"/work_packages/6664/move/new","type":"text/html","title":"Move tes"},"copy":{"href":"/work_packages/6664/copy","title":"Copy tes"},"pdf":{"href":"/work_packages/6664.pdf","type":"application/pdf","title":"Export as PDF"},"atom":{"href":"/work_packages/6664.atom","type":"application/rss+xml","title":"Atom feed"},"availableRelationCandidates":{"href":"/api/v3/work_packages/6664/available_relation_candidates","title":"Potential work packages to relate to"},"activities":{"href":"/api/v3/work_packages/6664/activities"},"availableWatchers":{"href":"/api/v3/work_packages/6664/available_watchers"},"relations":{"href":"/api/v3/work_packages/6664/relations"},"revisions":{"href":"/api/v3/work_packages/6664/revisions"},"watchers":{"href":"/api/v3/work_packages/6664/watchers"},"addWatcher":{"href":"/api/v3/work_packages/6664/watchers","method":"post","payload":{"user":{"href":"/api/v3/users/{user_id}"}},"templated":true},"removeWatcher":{"href":"/api/v3/work_packages/6664/watchers/{user_id}","method":"delete","templated":true},"addRelation":{"href":"/api/v3/work_packages/6664/relations","method":"post","title":"Add relation"},"addChild":{"href":"/api/v3/projects/storungen-and-support/work_packages","method":"post","title":"Add child of tes"},"changeParent":{"href":"/api/v3/work_packages/6664","method":"patch","title":"Change parent of tes"},"addComment":{"href":"/api/v3/work_packages/6664/activities","method":"post","title":"Add comment"},"previewMarkup":{"href":"/api/v3/render/markdown?context=/api/v3/work_packages/6664","method":"post"},"timeEntries":{"href":"/api/v3/time_entries?filters=%5B%7B%22work_package_id%22%3A%7B%22operator%22%3A%22%3D%22%2C%22values%22%3A%5B%226664%22%5D%7D%7D%5D","title":"Time entries"},"category":{"href":null},"type":{"href":"/api/v3/types/12","title":"Störung"},"priority":{"href":"/api/v3/priorities/8","title":"Residential"},"project":{"href":"/api/v3/projects/10","title":"Störungen & Support"},"status":{"href":"/api/v3/statuses/1","title":"Neu"},"author":{"href":"/api/v3/users/30","title":"Luca Haid"},"responsible":{"href":null},"assignee":{"href":null},"version":{"href":null},"logCosts":{"href":"/work_packages/6664/cost_entries/new","type":"text/html","title":"Log costs on tes"},"showCosts":{"href":"/projects/10/cost_reports?fields%5B%5D=WorkPackageId&operators%5BWorkPackageId%5D=%3D&set_filter=1&values%5BWorkPackageId%5D=6664","type":"text/html","title":"Show cost entries"},"costsByType":{"href":"/api/v3/work_packages/6664/summarized_costs_by_type"},"github_pull_requests":{"href":"/api/v3/work_packages/6664/github_pull_requests","title":"GitHub pull requests"},"unwatch":{"href":"/api/v3/work_packages/6664/watchers/30","method":"delete"},"ancestors":[],"parent":{"href":null,"title":null},"customActions":[]}}');
+      // subject: test
+      //description: test
+      //customer_name: 4 Quality GmbH & Co KG
+      //customer_number: 2215
+      //customer_address: Grazerstraße 87, 8111 Judendorf-Straßengel
+      //customer_phone_number: 0664
+      //customer_email: office@4quality.at
+      //customer_service_pin: ZE4889
+
+      $subject = $this->request->subject;
+        $description = $this->request->description;
+        $customer_name = $this->request->customer_name;
+        $customer_number = $this->request->customer_number;
+        $customer_address = $this->request->customer_address;
+        $customer_phone_number = $this->request->customer_phone_number;
+        $customer_email = $this->request->customer_email;
+        $customer_service_pin = $this->request->customer_service_pin;
+        $user_api_key = (string)$this->me->getFlag('project_api_key');
+
+        $xinon_project = new XinonProject();
+        $response = $xinon_project->createNewFaultTicket($subject, $description, $customer_name, $customer_number, $customer_address, $customer_phone_number, $customer_email, $customer_service_pin, $user_api_key);
+
+        die($response);
+
+  }
 }
diff --git a/application/User/UserController.php b/application/User/UserController.php
index b73f05bbb..36fd45fcb 100644
--- a/application/User/UserController.php
+++ b/application/User/UserController.php
@@ -283,6 +283,16 @@ class UserController extends mfBaseController
               $enum->delete();
             }
 
+            // workerflag for project_api_key
+            $pak = new WorkerFlag($user->id, "project_api_key");
+            if($r->project_api_key) {
+              $pak->value($r->project_api_key);
+              $pak->save();
+            } else {
+              $pak->delete();
+            }
+
+
         }
 
         $this->layout()->setFlash("Benutzer gespeichert.", "success");
diff --git a/lib/XinonProject/XinonProject.php b/lib/XinonProject/XinonProject.php
new file mode 100644
index 000000000..3c115f919
--- /dev/null
+++ b/lib/XinonProject/XinonProject.php
@@ -0,0 +1,54 @@
+<?php
+
+/**
+ * Represents the OpenProject API.
+ */
+class XinonProject {
+    private string $apiUrl = 'https://project.xinon.at/api/v3/';
+
+    /**
+     * XinonProject constructor.
+     */
+    public function __construct() {}
+
+
+    public function createNewFaultTicket(string $subject, string $description, string $customer_name, string $customer_number, string $customer_address, string $customer_phone_number, string $customer_email, string $customer_service_pin, string $apiKey) {
+
+        $data = [
+            'subject' => $subject,
+            'customField2' => $customer_name,
+            'customField3' => $customer_address,
+            'customField4' => $customer_phone_number,
+            'customField5' => $customer_email,
+            'customField6' => $customer_number,
+            'customField7' => $customer_service_pin,
+            'description' => [
+                'raw' => $description
+            ]
+        ];
+
+        $curl = curl_init();
+
+        curl_setopt_array($curl, array(
+            CURLOPT_URL => 'https://project.xinon.at/api/v3/projects/10/work_packages',
+            CURLOPT_RETURNTRANSFER => true,
+            CURLOPT_ENCODING => '',
+            CURLOPT_MAXREDIRS => 10,
+            CURLOPT_TIMEOUT => 0,
+            CURLOPT_FOLLOWLOCATION => true,
+            CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
+            CURLOPT_CUSTOMREQUEST => 'POST',
+            CURLOPT_POSTFIELDS => json_encode($data),
+            CURLOPT_HTTPHEADER => array('Content-Type: application/json'),
+            CURLOPT_USERPWD => 'apikey:'.$apiKey
+        ));
+        curl_setopt($curl, CURLOPT_USERPWD, 'apikey:'.$apiKey);
+
+        $response = curl_exec($curl);
+
+        curl_close($curl);
+        return $response;
+
+    }
+}
+?>