diff --git a/Layout/default/ConstructionConsent/Consentform.pdf.php b/Layout/default/ConstructionConsent/Consentform.pdf.php
index 71d2a7361..8acd913a6 100644
--- a/Layout/default/ConstructionConsent/Consentform.pdf.php
+++ b/Layout/default/ConstructionConsent/Consentform.pdf.php
@@ -247,7 +247,7 @@ foreach ($owners as $owner):
 
         <p style="margin-top: 50pt;">
             <?= ($owner->title) ? $owner->title . "<br />" : "" ?>
-            <?= $owner->firstname ?> <?= $owner->lastname ?><br/>
+            <?= $owner->company ? $owner->company : $owner->firstname . ' ' . $owner->lastname ?><br/>
             <?= $owner->street ?><br/>
             <?php if ($owner->country): ?>
                 <?= $owner->zip ?> <?= $owner->city ?>
diff --git a/Layout/default/ConstructionConsent/Index.php b/Layout/default/ConstructionConsent/Index.php
index 41c321810..44ee32ad5 100644
--- a/Layout/default/ConstructionConsent/Index.php
+++ b/Layout/default/ConstructionConsent/Index.php
@@ -2,6 +2,7 @@
 $pagination_baseurl = $this->getUrl($Mod,"Index");
 $pagination_baseurl_params = ["filter" => $filter];
 $pagination_entity_name = "Zustimmungserklärungen";
+
 ?>
 <?php include(realpath(dirname(__FILE__)."/../../$mfLayoutPackage")."/header.php"); ?>
 
@@ -184,6 +185,20 @@ $pagination_entity_name = "Zustimmungserklärungen";
             </div>
         </div>
 
+<!--        display card if $hasFaultyEntries is true with danger class and text
+"ACHTUNG: Dieses Zustimmungserklärungsprojekt enthält fehlerhafte Besitzerdaten. (BUTTON) Hier klicken um fehlerhafte Einträge zu sehen"
+-->
+        <?php if ($hasFaultyEntries): ?>
+            <div class="card text-center mb-3">
+                <div class="card-body">
+                    <h5 class="card-title text-danger">ACHTUNG: Dieses Zustimmungserklärungsprojekt enthält fehlerhafte Besitzerdaten.</h5>
+                    <p class="card-text">
+                        <a href="<?=self::getUrl("ConstructionConsent", "FaultyEntries", ["project_id" => $filter["project_id"] ?? ""])?>" class="btn btn-danger mt-2">Hier klicken, um fehlerhafte Einträge zu sehen</a>
+                    </p>
+                </div>
+            </div>
+        <?php endif; ?>
+
         <?php
         // if results are more than 0
         if (count($items) > 0) : ?>
diff --git a/Layout/default/ConstructionConsent/View.php b/Layout/default/ConstructionConsent/View.php
index 5700693de..fb643072a 100644
--- a/Layout/default/ConstructionConsent/View.php
+++ b/Layout/default/ConstructionConsent/View.php
@@ -343,7 +343,11 @@ $pagination_entity_name = "Adressen";
                                         </td>
                                         <td>
 
+                                            <?php if($owner->company): ?>
+                                                <strong><?=$owner->company?></strong><br />
+                                            <?php else: ?>
                                             <strong><?=($owner->title) ? $owner->title." " : ""?><?=$owner->firstname?> <?=$owner->lastname?></strong><br />
+                                            <?php endif; ?>
                                             <?=$owner->street?><br />
                                             <?=$owner->zip?> <?=$owner->city?><br />
                                             <?=$owner->country?>
@@ -514,6 +518,11 @@ $pagination_entity_name = "Adressen";
                             <label for="title" class="col-form-label">Titel:</label>
                             <input type="text" class="form-control" name="title" id="title" />
                         </div>
+
+                        <div class="form-group">
+                            <label for="company" class="col-form-label">Firma:</label>
+                            <input type="text" required class="form-control" name="company" id="company" />
+                        </div>
                         
                         <div class="form-group">
                             <label for="firnstname" class="col-form-label">Vorname:</label>
@@ -1168,10 +1177,49 @@ $pagination_entity_name = "Adressen";
             }
         });
     });
+
+    $(document).ready(function() {
+        $('#company').on('input', function() {
+            if ($(this).val().length > 0) {
+                $('#firstname').prop('required', false);
+                $('#lastname').prop('required', false);
+            } else {
+                $('#firstname').prop('required', true);
+                $('#lastname').prop('required', true);
+            }
+        });
+
+        $('#firstname, #lastname').on('input', function() {
+            if ($('#firstname').val().length > 0 && $('#lastname').val().length > 0) {
+                $('#company').prop('required', false);
+            } else {
+                $('#company').prop('required', true);
+            }
+        });
+
+        const urlParams = new URLSearchParams(window.location.search);
+        const highlightOwnerId = urlParams.get('highlight_owner_id');
+
+        if (highlightOwnerId) {
+            const targetRow = document.querySelector(`#owner-data-${highlightOwnerId}`);
+            if (targetRow) {
+                targetRow.scrollIntoView({ behavior: 'smooth', block: 'center' });
+                targetRow.classList.add('highlight');
+                setTimeout(() => {
+                    targetRow.classList.remove('highlight');
+                }, 1500);
+            }
+        }
+
+    })
 </script>
 
 
 <style>
+    .highlight {
+        background-color: #ffeb3b !important;
+        transition: background-color 0.5s ease;
+    }
     /* Styles for the status circle */
     .status-circle {
         width: 14px;
diff --git a/application/ConstructionConsent/ConstructionConsentController.php b/application/ConstructionConsent/ConstructionConsentController.php
index 27b71709c..c9b3afc7d 100644
--- a/application/ConstructionConsent/ConstructionConsentController.php
+++ b/application/ConstructionConsent/ConstructionConsentController.php
@@ -30,6 +30,7 @@ class ConstructionConsentController extends mfBaseController {
         }
 
         $filter = [];
+        $hasFaultyEntries = false;
 
         if(is_array($this->request->filter)) {
             $filter = $this->request->filter;
@@ -41,6 +42,7 @@ class ConstructionConsentController extends mfBaseController {
                 } else {
                     $_SESSION[MFAPPNAME . '-ConstructionConsent-filter-project-' . $filter["project_id"]] = $filter;
                 }
+                $hasFaultyEntries = ConstructionConsentProject::hasFaultyOwnerEntries($filter["project_id"]);
             } else {
                 $_SESSION[MFAPPNAME . '-ConstructionConsent-filter'] = $filter;
             }
@@ -59,6 +61,7 @@ class ConstructionConsentController extends mfBaseController {
         //var_dump($_SESSION, $filter);exit;
 
         $this->layout->set("allowed_projects", $this->constructionConsentProjects);
+        $this->layout->set("hasFaultyEntries", $hasFaultyEntries);
         $this->layout->set("filter", $filter);
         $filter = $this->getPreparedFilter($filter);
 
@@ -1373,4 +1376,37 @@ class ConstructionConsentController extends mfBaseController {
         self::returnJson(["success" => true]);
     }
 
+    protected function faultyEntriesAction() {
+        // Get project ID from request if available
+        $projectId = isset($_GET['project_id']) ? intval($_GET['project_id']) : null;
+        if ($projectId === null) {
+            $this->layout()->setFlash("Projekt nicht gefunden", "error");
+            $this->redirect("ConstructionConsentProject");
+            return;
+        }
+
+
+        // Get faulty owner entries
+        $faultyEntries = ConstructionConsentProject::getFaultyOwnerEntries($projectId);
+
+        $JSGlobals = [
+            "BASE_URL" => self::getUrl(""),
+            "DASHBOARD_URL" => self::getUrl("Dashboard"),
+            "MFAPPNAME" => MFAPPNAME_SLUG,
+            "PAGE_TITLE" => "Fehlerhafte Einträge - Zustimmungserklärungen",
+            "PATH" => [
+                ["text" => MFAPPNAME_SLUG, "href" => self::getUrl("Dashboard")],
+                ["text" => "Zustimmungserklärungen", "href" => self::getUrl("ConstructionConsent")],
+                ["text" => "Fehlerhafte Einträge", "href" => self::getUrl("ConstructionConsent", "faultyEntries")],
+            ],
+            "FAULTY_ENTRIES" => $faultyEntries,
+            "SELECTED_PROJECT" => $projectId,
+            "IS_ADMIN" => $this->me->is("Admin"),
+        ];
+
+        $this->layout()->set("vueViewName", "ConstructionConsentFaultyEntries");
+        $this->layout()->set("JSGlobals", $JSGlobals);
+        $this->layout()->setTemplate("VueViews/Vue");
+    }
+
 }
diff --git a/application/ConstructionConsentOwner/ConstructionConsentOwner.php b/application/ConstructionConsentOwner/ConstructionConsentOwner.php
index 7f8bdb68a..22488194a 100644
--- a/application/ConstructionConsentOwner/ConstructionConsentOwner.php
+++ b/application/ConstructionConsentOwner/ConstructionConsentOwner.php
@@ -107,7 +107,7 @@ class ConstructionConsentOwner extends mfBaseModel {
         $model = new ConstructionConsentOwner();
 
         $table_fields = [
-            "constructionconsent_id", "title", "firstname", "lastname", "street", "zip", "city", "country",
+            "constructionconsent_id", "title", "company", "firstname", "lastname", "street", "zip", "city", "country",
             "phone", "phone2", "birthdate", "fax", "email", "status", "result", "create_by","edit_by","create","edit"
         ];
 
diff --git a/application/ConstructionConsentOwner/ConstructionConsentOwnerController.php b/application/ConstructionConsentOwner/ConstructionConsentOwnerController.php
index 97769c89a..4b4d4713f 100644
--- a/application/ConstructionConsentOwner/ConstructionConsentOwnerController.php
+++ b/application/ConstructionConsentOwner/ConstructionConsentOwnerController.php
@@ -91,6 +91,7 @@ class ConstructionConsentOwnerController extends mfBaseController
         $data["constructionconsent_id"] = $cc_id;
         $data["title"] = $r->title;
         $data["firstname"] = $r->firstname;
+        $data["company"] = $r->company;
         $data["lastname"] = $r->lastname;
         $data["street"] = $r->street;
         $data["zip"] = $r->zip;
@@ -123,7 +124,7 @@ class ConstructionConsentOwnerController extends mfBaseController
         } else {
             $journal = ConstructionConsentJournal::create([
                 "constructionconsent_id" => $cc->id,
-                "text" => "Eigentümer " . $item->firstname . " " . $item->lastname . " wurde hinzugefügt"
+                "text" => "Eigentümer " . ($item->company ? $item->company : $item->firstname . " " . $item->lastname) . " wurde hinzugefügt"
             ]);
             $journal->save();
 
@@ -151,7 +152,7 @@ class ConstructionConsentOwnerController extends mfBaseController
         }
 
         foreach($owner->files as $file) {
-            $file->file->delete();
+            if ($file->file) $file->file->delete();
             $file->delete();
         }
 
diff --git a/application/ConstructionConsentProject/ConstructionConsentProject.php b/application/ConstructionConsentProject/ConstructionConsentProject.php
index 2a0ed4df3..1f88eba6c 100644
--- a/application/ConstructionConsentProject/ConstructionConsentProject.php
+++ b/application/ConstructionConsentProject/ConstructionConsentProject.php
@@ -237,4 +237,179 @@ class ConstructionConsentProject extends mfBaseModel {
         //var_dump($filter, $where);exit;
         return $where;
     }
+
+    /**
+     * Checks if there are faulty owner entries in the Construction Consent system
+     * for a specific project
+     *
+     * A faulty entry is defined as one where:
+     * - Title is empty AND (first name is empty OR last name is empty OR city is empty OR zip code is invalid)
+     * - For Austrian addresses, zip code must be exactly 4 digits
+     * - For other countries, zip code must not be empty
+     *
+     * @param int $projectId The ID of the construction consent project to check
+     * @return bool Returns true if faulty entries exist, false otherwise
+     */
+    public static function hasFaultyOwnerEntries(int $projectId): bool {
+        if (empty($projectId)) return false;
+
+        $db = FronkDB::singleton();
+
+        $sql = "SELECT 1
+FROM ConstructionConsentOwner cco
+JOIN ConstructionConsent cc ON cc.id = cco.constructionconsent_id
+WHERE cc.constructionconsentproject_id = $projectId
+AND (
+  (
+    (
+      (cco.company IS NOT NULL AND TRIM(cco.company) <> '') OR
+      (
+        (cco.firstname IS NOT NULL AND TRIM(cco.firstname) <> '') AND
+        (cco.lastname IS NOT NULL AND TRIM(cco.lastname) <> '')
+      )
+    ) OR
+    (cco.city IS NULL OR TRIM(cco.city) = '')
+  )
+  AND
+  (
+    (
+      (LOWER(cco.country) = 'österreich' OR LOWER(cco.country) = 'austria') AND 
+      (cco.zip IS NULL OR cco.zip NOT REGEXP '^[0-9]{4}')
+    )
+    OR
+    /* For other countries: ZIP must not be empty */
+    (
+      (LOWER(cco.country) != 'österreich' AND LOWER(cco.country) != 'austria') AND
+      (cco.zip IS NULL OR TRIM(cco.zip) = '')
+    )
+  )
+)
+LIMIT 1";
+
+        $res = $db->query($sql);
+
+        return ($res->num_rows > 0);
+    }
+
+    public static function getFaultyOwnerEntries($projectId = null) {
+        $faultyEntries = [];
+        $db = FronkDB::singleton();
+
+        $whereClause = "";
+        if (!empty($projectId)) {
+            $projectId = (int)$projectId;
+            $whereClause = "WHERE cc.constructionconsentproject_id = $projectId";
+        }
+
+        $sql = "
+SELECT
+    cco.id as owner_id,
+    cco.firstname,
+    cco.lastname,
+    cco.title,
+    cco.street,
+    cco.zip,
+    cco.city,
+    cco.country,
+    cco.email,
+    cco.phone,
+    cco.status,
+    cco.result,
+    cc.id as consent_id,
+    cc.name as building_name,
+    cc.object_type,
+    ccp.id as project_id,
+    ccp.name as project_name,
+    cco.create,
+    cco.edit
+FROM
+    ConstructionConsentOwner cco
+JOIN
+    ConstructionConsent cc ON cc.id = cco.constructionconsent_id
+JOIN
+    ConstructionConsentProject ccp ON ccp.id = cc.constructionconsentproject_id
+$whereClause
+AND (
+    (
+        (cco.company IS NOT NULL AND TRIM(cco.company) <> '') OR
+        (
+            (cco.firstname IS NOT NULL AND TRIM(cco.firstname) <> '') AND
+            (cco.lastname IS NOT NULL AND TRIM(cco.lastname) <> '')
+        )
+    ) OR
+    (cco.city IS NULL OR TRIM(cco.city) = '')
+) -- Fixed parenthesis balance here
+AND (
+    (
+        (LOWER(cco.country) = 'österreich' OR LOWER(cco.country) = 'austria') AND
+        (cco.zip IS NULL OR cco.zip NOT REGEXP '^[0-9]{4}')
+    )
+    OR
+    (
+        (LOWER(cco.country) != 'österreich' AND LOWER(cco.country) != 'austria') AND
+        (cco.zip IS NULL OR TRIM(cco.zip) = '')
+    )
+)
+ORDER BY
+    ccp.name, cc.name, cco.lastname, cco.firstname
+
+";
+
+        $res = $db->query($sql);
+
+        while($data = $res->fetch_assoc()) {
+            $errors = [];
+
+            // Check if company is empty, OR if both firstname and lastname are empty
+            if (empty(trim($data['company']))) {
+                if (empty(trim($data['firstname']))) {
+                    $errors[] = 'firstname';
+                }
+                if (empty(trim($data['lastname']))) {
+                    $errors[] = 'lastname';
+                }
+            }
+
+            // Existing city check (assuming it's still relevant for faulty entries)
+            if (empty(trim($data['city']))) {
+                $errors[] = 'city';
+            }
+
+            // Check ZIP based on country
+            $isAustria = (strtolower($data['country']) === 'österreich' || strtolower($data['country']) === 'austria');
+
+            if ($isAustria && (!isset($data['zip']) || !preg_match('/^[0-9]{4}$/', $data['zip']))) {
+                $errors[] = 'zip';
+            } elseif (!$isAustria && empty(trim($data['zip']))) {
+                $errors[] = 'zip';
+            }
+
+            $faultyEntries[] = [
+                'owner_id' => $data['owner_id'],
+                'consent_id' => $data['consent_id'],
+                'project_id' => $data['project_id'],
+                'project_name' => $data['project_name'],
+                'building_name' => $data['building_name'],
+                'object_type' => $data['object_type'],
+                'title' => $data['title'],
+                'firstname' => $data['firstname'],
+                'lastname' => $data['lastname'],
+                'street' => $data['street'],
+                'zip' => $data['zip'],
+                'city' => $data['city'],
+                'country' => $data['country'],
+                'email' => $data['email'],
+                'phone' => $data['phone'],
+                'status' => $data['status'],
+                'result' => $data['result'],
+                'create' => $data['create'],
+                'edit' => $data['edit'],
+                'errors' => $errors
+            ];
+        }
+
+        return $faultyEntries;
+    }
+
+
 }
\ No newline at end of file
diff --git a/db/migrations/20250520132000_constr_cons_owner_add_company.php b/db/migrations/20250520132000_constr_cons_owner_add_company.php
new file mode 100644
index 000000000..0d470c093
--- /dev/null
+++ b/db/migrations/20250520132000_constr_cons_owner_add_company.php
@@ -0,0 +1,27 @@
+<?php
+declare(strict_types=1);
+
+use Phinx\Migration\AbstractMigration;
+
+final class ConstrConsOwnerAddCompany extends AbstractMigration
+{
+    public function up(): void
+    {
+        if($this->getEnvironment() == "addressdb") {
+            $ConstructionConsentOwner = $this->table("ConstructionConsentOwner");
+            $ConstructionConsentOwner->addColumn("company", "string", ["limit" => 255, "null" => true]);
+
+            $ConstructionConsentOwner->update();
+        }
+    }
+
+    public function down(): void
+    {
+        if($this->getEnvironment() == "addressdb") {
+            $ConstructionConsentOwner = $this->table("ConstructionConsentOwner");
+            $ConstructionConsentOwner->removeColumn("company");
+
+            $ConstructionConsentOwner->update();
+        }
+    }
+}
\ No newline at end of file
diff --git a/public/js/pages/ConstructionConsentFaultyEntries/ConstructionConsentFaultyEntries.js b/public/js/pages/ConstructionConsentFaultyEntries/ConstructionConsentFaultyEntries.js
new file mode 100644
index 000000000..b25a9f982
--- /dev/null
+++ b/public/js/pages/ConstructionConsentFaultyEntries/ConstructionConsentFaultyEntries.js
@@ -0,0 +1,200 @@
+Vue.component('construction-consent-faulty-entries', {
+    //language=Vue
+    template: `
+      <div>
+        <tt-card>
+          
+          <tt-table :data="window['TT_CONFIG']['FAULTY_ENTRIES']" :config="FaultyEntriesTableConfig" excel-export>
+            <template v-slot:project_name="{ row }">
+              {{ row.project_name }}
+            </template>
+            
+            <template v-slot:building_info="{ row }">
+              <div>
+                <strong>Name:</strong> {{ row.building_name || 'N/A' }} <br>
+                <strong>Typ:</strong> {{ formatObjectType(row.object_type) }}
+              </div>
+            </template>
+
+            <template v-slot:owner_info="{ row }">
+              <div>
+                <div v-if="row.company" :class="{'text-danger': row.errors.includes('company')}">
+                  <strong>Firma:</strong> {{ row.company }}
+                </div>
+                <div v-else>
+                  <div :class="{'text-danger': row.errors.includes('firstname')}">
+                    <strong>Vorname:</strong> {{ row.firstname || '⚠️ Fehlt' }}
+                  </div>
+                  <div :class="{'text-danger': row.errors.includes('lastname')}">
+                    <strong>Nachname:</strong> {{ row.lastname || '⚠️ Fehlt' }}
+                  </div>
+                </div>
+              </div>
+            </template>
+            
+            <template v-slot:address_info="{ row }">
+              <div>
+                <div>
+                  <strong>Straße:</strong> {{ row.street || 'N/A' }}
+                </div>
+                <div :class="{'text-danger': row.errors.includes('zip')}">
+                  <strong>PLZ:</strong> {{ row.zip || '⚠️ Fehlt' }}
+                  <span v-if="row.errors.includes('zip') && isAustria(row)" class="badge badge-warning">
+                    Muss 4-stellig sein
+                  </span>
+                </div>
+                <div :class="{'text-danger': row.errors.includes('city')}">
+                  <strong>Stadt:</strong> {{ row.city || '⚠️ Fehlt' }}
+                </div>
+                <div>
+                  <strong>Land:</strong> {{ row.country || 'N/A' }}
+                </div>
+              </div>
+            </template>
+            
+            <template v-slot:contact_info="{ row }">
+              <div>
+                <div>
+                  <strong>Email:</strong> {{ row.email || 'N/A' }}
+                </div>
+                <div>
+                  <strong>Telefon:</strong> {{ row.phone || 'N/A' }}
+                </div>
+              </div>
+            </template>
+            
+            <template v-slot:status="{ row }">
+              <span :class="getStatusBadgeClass(row.status)">
+                {{ formatStatus(row.status) }}
+              </span>
+              <br>
+              <span v-if="row.result" :class="getResultBadgeClass(row.result)">
+                {{ formatResult(row.result) }}
+              </span>
+            </template>
+            
+            <template v-slot:errors="{ row }">
+              <div class="error-list">
+                <ul class="mb-0 pl-3">
+                  <li v-for="error in row.errors" :key="error">
+                    {{ formatErrorType(error) }}
+                  </li>
+                </ul>
+              </div>
+            </template>
+            
+            <template v-slot:actions="{ row }">
+              <div class="btn-group btn-group-sm">
+                <a :href="window['TT_CONFIG']['BASE_URL'] + '/ConstructionConsent/View?id=' + row.consent_id + '&highlight_owner_id=' + row.owner_id"
+                   class="btn btn-primary"
+                   target="_blank"
+                   title="Zustimmungserklärung bearbeiten">
+                  <i class="fas fa-edit"></i>
+                </a>
+              </div>
+            </template>
+          </tt-table>
+        </tt-card>
+      </div>
+    `,
+    data() {
+        return {
+            window: window,
+            selectedProject: window['TT_CONFIG']['SELECTED_PROJECT'] || '',
+            FaultyEntriesTableConfig: {
+                key: 'FaultyEntriesTable',
+                tableHeader: 'Fehlerhafte Eigentümer-Einträge',
+                defaultPageSize: 20,
+                headers: [
+                    {text: 'Projekt', key: 'project_name', sortable: true, class: 'text-nowrap', priority: 10},
+                    {text: 'Objekt', key: 'building_info', sortable: true, sortKey: 'building_name', class: 'text-nowrap', priority: 9},
+                    {text: 'Eigentümer', key: 'owner_info', sortable: true, sortKey: 'lastname', class: '', priority: 8},
+                    {text: 'Adresse', key: 'address_info', sortable: true, sortKey: 'city', class: '', priority: 7},
+                    {text: 'Kontakt', key: 'contact_info', sortable: false, class: '', priority: 6},
+                    {text: 'Status', key: 'status', sortable: true, class: 'text-center', priority: 5, filter: 'select', filterOptions: [
+                            {text: 'Neu', value: 'new'},
+                            {text: 'Gesendet', value: 'sent'},
+                            {text: 'Zurückgekehrt', value: 'returned'},
+                            {text: 'Ausstehend', value: 'outstanding'},
+                        ]},
+                    {text: 'Fehler', key: 'errors', sortable: false, class: '', priority: 4},
+                    {text: 'Aktionen', key: 'actions', sortable: false, class: 'text-center', filter: false, priority: 3},
+                ],
+            },
+        }
+    },
+    methods: {
+        formatDate(timestamp) {
+            if (!timestamp) return 'N/A';
+            return this.window.moment.unix(timestamp).format('DD.MM.YYYY HH:mm:ss');
+        },
+        formatObjectType(type) {
+            const types = {
+                'building': 'Gebäude',
+                'street': 'Straße'
+            };
+            return types[type] || type;
+        },
+        formatStatus(status) {
+            const statuses = {
+                'new': 'Neu',
+                'sent': 'Gesendet',
+                'returned': 'Zurückgekehrt',
+                'outstanding': 'Ausstehend'
+            };
+            return statuses[status] || status;
+        },
+        formatResult(result) {
+            const results = {
+                'open': 'Offen',
+                'accepted': 'Akzeptiert',
+                'denied': 'Abgelehnt',
+                'unresolvable': 'Nicht lösbar',
+                'moved': 'Umgezogen'
+            };
+            return results[result] || result;
+        },
+        formatErrorType(error) {
+            const errors = {
+                'company': 'Fehlende Firma',
+                'firstname': 'Fehlender Vorname',
+                'lastname': 'Fehlender Nachname',
+                'city': 'Fehlende Stadt',
+                'zip': 'Ungültige PLZ'
+            };
+            return errors[error] || error;
+        },
+        getStatusBadgeClass(status) {
+            const classes = {
+                'new': 'badge badge-secondary',
+                'sent': 'badge badge-primary',
+                'returned': 'badge badge-success',
+                'outstanding': 'badge badge-warning'
+            };
+            return classes[status] || 'badge badge-secondary';
+        },
+        getResultBadgeClass(result) {
+            const classes = {
+                'open': 'badge badge-info',
+                'accepted': 'badge badge-success',
+                'denied': 'badge badge-danger',
+                'unresolvable': 'badge badge-dark',
+                'moved': 'badge badge-warning'
+            };
+            return classes[result] || 'badge badge-secondary';
+        },
+        isAustria(row) {
+            return row.country && (row.country.toLowerCase() === 'österreich' || row.country.toLowerCase() === 'austria');
+        },
+        filterByProject() {
+            // Redirect to same page with project filter
+            window.location.href = this.window['TT_CONFIG']['BASE_URL'] +
+                '/ConstructionConsent/faultyEntries' +
+                (this.selectedProject ? '?project_id=' + this.selectedProject : '');
+        },
+        refreshData() {
+            // Reload the current page
+            window.location.reload();
+        }
+    }
+})
\ No newline at end of file