diff --git a/html/assets/css/style.css b/html/assets/css/style.css
index 8491663..d2855d6 100644
--- a/html/assets/css/style.css
+++ b/html/assets/css/style.css
@@ -30,6 +30,9 @@ h1 {
     color: var(--dark-color);
 }
 
+.debug_hidden {
+    display: none;
+}
 /* Container */
 .container {
     max-width: 1600px;
@@ -295,6 +298,14 @@ tr:hover {
     overflow: hidden;
 }
 
+.data-notice {
+    background-color: lightgreen;
+}
+
+.data-notice.error {
+    background-color: LightCoral;
+}
+
 #cookie-notice.hidden {
 opacity: 0;
 max-height: 0;
diff --git a/html/dashboard.php b/html/dashboard.php
index 63f1dcb..688bf52 100644
--- a/html/dashboard.php
+++ b/html/dashboard.php
@@ -21,7 +21,8 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
 }
 
 // Daten abrufen
-$stmt = $pdo->prepare("SELECT * FROM entries WHERE MONTH(date) = MONTH(CURDATE()) AND YEAR(date) = YEAR(CURDATE())");
+$sql="WITH user_names AS (SELECT p.id,b_single.username AS zahler,GROUP_CONCAT(b_array.username) AS personen FROM entries p LEFT JOIN users b_single ON p.user_id = b_single.id JOIN JSON_TABLE(p.person,'$[*]' COLUMNS(id INT PATH '$')) AS jt LEFT JOIN users b_array ON jt.id = b_array.id GROUP BY p.id, b_single.username) SELECT e.*, un.zahler, un.personen FROM entries e JOIN user_names un ON e.id = un.id;";
+$stmt = $pdo->prepare($sql);
 $stmt->execute();
 $entries = $stmt->fetchAll();
 ?>
@@ -53,6 +54,7 @@ $entries = $stmt->fetchAll();
 <thead>
 <tr>
 <th>Datum</th>
+<th class="hide-on-mobile">Zahler</th>
 <th class="hide-on-mobile">Person</th>
 <th class="hide-on-mobile">Kategorie</th>
 <th>Zahlweise</th>
@@ -64,7 +66,8 @@ $entries = $stmt->fetchAll();
 <?php foreach ($entries as $entry): ?>
 <tr>
 <td><?= htmlspecialchars($entry['date']) ?></td>
-<td class="hide-on-mobile"><?= htmlspecialchars($entry['person'] ?? '') ?></td>
+<td class="hide-on-mobile"><?= htmlspecialchars($entry['zahler'] ?? '') ?></td>
+<td class="hide-on-mobile"><?= htmlspecialchars($entry['personen'] ?? '') ?></td>
 <td class="hide-on-mobile"><?= htmlspecialchars($entry['category'] ?? '') ?></td>
 <td><?= htmlspecialchars($entry['payment_method'] ?? '') ?></td>
 <td><?= htmlspecialchars($entry['subject']) ?></td>
diff --git a/html/new_entry.php b/html/new_entry.php
index 7cecd6c..8e82b54 100644
--- a/html/new_entry.php
+++ b/html/new_entry.php
@@ -22,39 +22,54 @@ $users = [];
 $categories = [];
 
 // save-Logik
-if (!empty($_POST) && isset($DEBUG)) { //  $_SERVER['REQUEST_METHOD'] === 'POST') {
-    echo "<h3>Empfangene POST-Daten:</h3>";
-    echo "<ul>";
+if (!empty($_POST)) { //  $_SERVER['REQUEST_METHOD'] === 'POST') {
+    echo "<p class=\"debug_hidden\">Empfangene POST-Daten:</p>";
+    echo "<ul class=\"debug_hidden\">";
     // Durch alle POST-Variablen iterieren
     foreach ($_POST as $key => $value) {
-        // Wert escapen, um XSS zu vermeiden
-        $escapedValue = htmlspecialchars($value, ENT_QUOTES, 'UTF-8');
-        echo "<li><strong>$key:</strong> $escapedValue</li>";
+        if (is_array($value)) {
+            // Falls es ein Array ist, z. B. bei Checkboxen oder multiple-Selects
+            $escapedValues = array_map(function($v) {
+                return htmlspecialchars($v, ENT_QUOTES, 'UTF-8');
+            }, $value);
+            echo "<li><strong>$key:</strong> " . implode(', ', $escapedValues) . "</li>";
+        } else {
+            // Standardfall: String escapen
+            $escapedValue = htmlspecialchars($value, ENT_QUOTES, 'UTF-8');
+            echo "<li><strong>$key:</strong> $escapedValue</li>";
+        }
     }
     echo "</ul>";
-        // POST-Daten abrufen und escapen
+
         $date = isset($_POST['date']) ? trim($_POST['date']) : '';
         $user_id = isset($_POST['user_id']) ? trim($_POST['user_id']) : '';
-        $person = isset($_POST['person']) ? trim($_POST['person']) : '';
+        $person = isset($_POST['person']) ? $_POST['person'] : '';
         $category = isset($_POST['category']) ? trim($_POST['category']) : '';
         $subject = isset($_POST['subject']) ? trim($_POST['subject']) : '';
         $amount = isset($_POST['amount']) ? (float)$_POST['amount'] : 0.0;
         $payment_method = isset($_POST['payment_method']) ? trim($_POST['payment_method']) : '';
+        $jsonPersonen = json_encode($person);
 
         // SQL-Statement vorbereiten
         try {
+
             $stmt = $pdo->prepare("
                 INSERT INTO entries (date, user_id, person, category, subject, amount, payment_method)
                 VALUES (:date, :user_id, :person, :category, :subject, :amount, :payment_method)
             ");
             $stmt->bindParam(':date', $date);
             $stmt->bindParam(':user_id', $user_id);
-            $stmt->bindParam(':person', $person);
+            $stmt->bindParam(':person', $jsonPersonen);
             $stmt->bindParam(':category', $category);
             $stmt->bindParam(':subject', $subject);
             $stmt->bindParam(':amount', $amount);
             $stmt->bindParam(':payment_method', $payment_method);
 
+            ob_start();
+            $stmt->debugDumpParams();
+            $output = ob_get_clean();
+            echo "<p class=\"debug_hidden\">SQL: " . $output . "</p>";
+
             // Statement ausführen
             $stmt->execute();
             $data_saved = "true";
@@ -63,7 +78,7 @@ if (!empty($_POST) && isset($DEBUG)) { //  $_SERVER['REQUEST_METHOD'] === 'POST'
             // Fehlerbehandlung
             $data_saved = "Fehler: "; // . $e->getMessage();
         }
-
+        echo "<p class=\"debug_hidden\">SQL: " . $data_saved . "</p>";
 }
 
 try {
@@ -93,11 +108,14 @@ try {
 
 ?>
     <?php echo "<!-- data_saved:" . $data_saved . " Datum2: " . $currentDate . " -->"; ?>
-    <?php if ($data_saved != "nix"): ?>
-    <div id="data-notice" class="data-notice">
-    Data
-    </div>
+    <?php if ($data_saved == "true"): ?>
+        <div id="data-notice" class="data-notice">
+            Daten gespeichert !
+    <?php elseif ($data_saved != "nix"): ?>
+        <div id="data-notice" class="data-notice error">
+            <?php echo $data_saved; ?>
     <?php endif; ?>
+    </div>
     <div class="container">
 
         <!-- Navigation -->
@@ -156,7 +174,7 @@ try {
                 <input type="text" name="subject" placeholder="Betreff" required>
             </div>
             <div class="form-group">
-                <input type="number" name="amount" placeholder="Betrag" required>
+                <input type="number" name="amount" step="0.01" placeholder="Betrag" required>
             </div>
             <div class="form-group">
                 <input type="text" name="payment_method" placeholder="Zahlweise">
diff --git a/init.sql b/init.sql
index 98cdb90..f36ea45 100644
--- a/init.sql
+++ b/init.sql
@@ -22,7 +22,7 @@ CREATE TABLE IF NOT EXISTS entries (
     user_id INT NOT NULL,
     person VARCHAR(50),
     date DATE NOT NULL,
-    category VARCHAR(50),
+    category json,
     subject VARCHAR(255) NOT NULL,
     amount DECIMAL(10,2) NOT NULL,
     payment_method VARCHAR(50),
diff --git a/update.sql b/update.sql
index 0613aeb..5f0c62d 100644
--- a/update.sql
+++ b/update.sql
@@ -1,31 +1 @@
-USE finanzapp;
-
--- Tabelle für Kategorien (Ausgabenarten) anlegen
-CREATE TABLE IF NOT EXISTS categories (
-    category_id INT AUTO_INCREMENT PRIMARY KEY,
-    name VARCHAR(50) NOT NULL UNIQUE
-);
-
--- Tabelle für Zahlungsmittel anlegen
-CREATE TABLE IF NOT EXISTS payment_methods (
-    payment_method_id INT AUTO_INCREMENT PRIMARY KEY,
-    name VARCHAR(50) NOT NULL UNIQUE
-);
-
--- Daten in 'categories' einfügen, falls Tabelle leer ist
-INSERT INTO categories (name)
-SELECT 'Einkaufen'   UNION ALL
-SELECT 'Essen gehen' UNION ALL
-SELECT 'Freizeit'    UNION ALL
-SELECT 'PuFra'       UNION ALL
-SELECT 'Urlaub gemeinsam' UNION ALL
-SELECT 'Urlaub Pössi'     UNION ALL
-SELECT 'Barausgaben'
-WHERE NOT EXISTS (SELECT 1 FROM categories);
-
--- Daten in 'payment_methods' einfügen, falls Tabelle leer ist
-INSERT INTO payment_methods (name)
-SELECT 'Bar'    UNION ALL
-SELECT 'Karte'  UNION ALL
-SELECT 'Paypal'
-WHERE NOT EXISTS (SELECT 1 FROM payment_methods);
+alter table entries modify column category json;