diff --git a/app/api/web_api.py b/app/api/web_api.py
index 8261e28..a0c4b21 100644
--- a/app/api/web_api.py
+++ b/app/api/web_api.py
@@ -85,7 +85,7 @@ def api_get_user_permissions():
 @web_api.route("/api/users", methods=["POST"])
 def api_add_user():
     user_data = request.get_json()
-    user = User(user_data["name"], user_data["key"], user_data["email"])
+    user = User(user_data["name"], user_data["email"], user_data["phone"], user_data["key"])
 
     number_of_new_user_added = user.save()
 
@@ -101,7 +101,7 @@ def api_add_user():
 
 @web_api.route("/api/users/<user_key>", methods=["DELETE"])
 def api_delete_user(user_key):
-    user = User(key=user_key, name=None)
+    user = User(key=user_key, name=None, email=None, phone=None)
     user.delete()
 
     return jsonify({"message": "User deleted successfully"})
@@ -109,7 +109,7 @@ def api_delete_user(user_key):
 
 @web_api.route("/api/users/<user_key>/devices/<device_id>", methods=["POST"])
 def api_add_user_permission(user_key, device_id):
-    user = User(key=user_key, name=None)
+    user = User(key=user_key, name=None, email=None, phone=None)
     user.add_permission(device_id)
 
     return jsonify({"message": "User permission added successfully"})
@@ -117,7 +117,7 @@ def api_add_user_permission(user_key, device_id):
 
 @web_api.route("/api/users/<user_key>/devices/<device_id>", methods=["DELETE"])
 def api_remove_user_permission(user_key, device_id):
-    user = User(key=user_key, name=None)
+    user = User(key=user_key, name=None, email=None, phone=None)
     user.remove_permission(device_id)
 
     return jsonify({"message": "User permission removed successfully"})
diff --git a/app/models/user.py b/app/models/user.py
index f4d2ca3..cb85c98 100644
--- a/app/models/user.py
+++ b/app/models/user.py
@@ -3,10 +3,11 @@
 
 
 class User:
-    def __init__(self, name, key, email=None):
+    def __init__(self, name, email, phone, key):
         self.name = name
-        self.key = key
         self.email = email
+        self.phone = phone
+        self.key = key
 
     @classmethod
     def get_by_key(cls, key):
@@ -15,7 +16,7 @@ def get_by_key(cls, key):
         cursor.execute("SELECT * FROM users WHERE key = ?", (key,))
         result = cursor.fetchone()
         if result:
-            return User(result[0], result[1], result[2])
+            return User(result[0], result[1], result[2], result[3])
 
         return None
 
@@ -33,15 +34,16 @@ def save(self):
         number_of_new_user = 0
         if existing_user:
             # Update existing user data
+            # Updating mechanism needs to be improved
             cursor.execute(
                 "UPDATE users SET name = ?, key = ? WHERE email = ?",
-                (self.name, self.key, self.email if self.email else None),
+                (self.name, self.key, self.email),
             )
         else:
             # Create new user
             cursor.execute(
-                "INSERT INTO users (name, key, email) VALUES (?, ?, ?)",
-                (self.name, self.key, self.email if self.email else None),
+                "INSERT INTO users (name, email, phone, key) VALUES (?, ?, ?, ?)",
+                (self.name, self.email, self.phone, self.key),
             )
             number_of_new_user = 1
             conn.commit()
@@ -79,7 +81,7 @@ def get_permissions(cls, user_key=None):
         if user_key:
             cursor.execute(
                 """
-                SELECT users.name, users.key, users.email,
+                SELECT users.name, users.email, users.phone, users.key,
                        (SELECT operation_time
                         FROM event_logs
                         WHERE user_key = users.key
@@ -93,7 +95,7 @@ def get_permissions(cls, user_key=None):
         else:
             cursor.execute(
                 """
-                SELECT users.name, users.key, users.email,
+                SELECT users.name, users.email, users.phone, users.key,
                        (SELECT operation_time
                         FROM event_logs
                         WHERE user_key = users.key
@@ -105,9 +107,10 @@ def get_permissions(cls, user_key=None):
 
         for row in cursor.fetchall():
             user_name = row[0]
-            user_key = row[1]
-            user_email = row[2] if row[2] else None  # Handle email being None
-            latest_activity = row[3]
+            user_email = row[1] if row[1] else None  # Handle email being None
+            user_phone = row[2] if row[2] else None  # Handle phone being None
+            user_key = row[3]
+            latest_activity = row[4]
 
             # Get device permissions for the current user
             device_permissions = []
@@ -138,8 +141,9 @@ def get_permissions(cls, user_key=None):
             # Combine user information and permissions into a single record
             user_record = {
                 "user_name": user_name,
-                "user_key": user_key,
                 "user_email": user_email,
+                "user_phone": user_phone,
+                "user_key": user_key,
                 "permissions": device_permissions,
                 "latest_activity": latest_activity,
             }
diff --git a/app/schema.sql b/app/schema.sql
index 66d8fb6..d8a153c 100644
--- a/app/schema.sql
+++ b/app/schema.sql
@@ -7,8 +7,10 @@ CREATE TABLE IF NOT EXISTS admins
 CREATE TABLE IF NOT EXISTS users
 (
     name     TEXT NOT NULL,
-    key      TEXT NOT NULL,
-    email    TEXT NOT NULL
+    email    TEXT NOT NULL,
+    phone    TEXT DEFAULT NULL,
+    key      TEXT NOT NULL
+    
 );
 CREATE TABLE IF NOT EXISTS permissions
 (
diff --git a/app/templates/prismo/users.html b/app/templates/prismo/users.html
index f366332..8b175ea 100644
--- a/app/templates/prismo/users.html
+++ b/app/templates/prismo/users.html
@@ -6,9 +6,18 @@
             <div class="card-body">
                 <h5 class="card-title">Add last used RFID card as new user: <span id="used-key-at"></span></h5>
                 <div class="input-group mb-3">
-                    <button class="btn btn-primary" type="submit" onclick="addUser(document.getElementById('user_name').value, document.getElementById('user_email').value)" ><i class="bi bi-person-add"></i> Add User</button>  
+                    <button 
+                      class="btn btn-primary" 
+                      type="submit" 
+                      onclick="addUser(
+                        document.getElementById('user_name').value, 
+                        document.getElementById('user_email').value, 
+                        document.getElementById('user_phone').value)">
+                      <i class="bi bi-person-add"></i>Add User
+                    </button>  
                     <input type="text" class="form-control" id="user_name" placeholder="User Name">
                     <input type="email" class="form-control ms-2" id="user_email" placeholder="Email">
+                    <input type="telephone" class="form-control ms-3" id="user_phone" placeholder="Phone Number">
                 </div>
             </div>
         </div>
@@ -28,11 +37,11 @@ <h5 class="card-title">Add last used RFID card as new user: <span id="used-key-a
         $('#used-key-at').text(latestKey.operation_time);
       } else {
         console.error("Latest key data or operation_time is missing.");
-        // Handle the error appropriately, e.g., display a placeholder message
+        $('#used-key-at').text('No recent key detected');
       }
     }).catch((error) => {
       console.error('Error fetching latest key:', error);
-      // Handle the error appropriately, e.g., display an error message
+      $('#used-key-at').text('Error fetching key');
     });
   });
 
@@ -49,7 +58,11 @@ <h5 class="card-title">Add last used RFID card as new user: <span id="used-key-a
   }
   // Example curl request to add a new user:
   // curl -X POST -H "Content-Type: application/json" -d '{"name":"John Doe","email":"john@example.com","key":"RFID_KEY"}' http://localhost:5000/api/users
-  async function addUser(name, email) {
+  async function addUser(name, email, phone) {
+    if (!name || !email) {
+      alert('Name and email are required');
+      throw new Error('Name and email are required');
+    }
     try {
       const latestKey = await getLatestKey(); // Wait for API call
 
@@ -60,7 +73,7 @@ <h5 class="card-title">Add last used RFID card as new user: <span id="used-key-a
           headers: {
             'Content-Type': 'application/json'
           },
-          body: JSON.stringify({ name, email, key })
+          body: JSON.stringify({ name, email, phone, key })
         });
 
         if (!response.ok) {
@@ -71,6 +84,7 @@ <h5 class="card-title">Add last used RFID card as new user: <span id="used-key-a
         usersTable.clear().rows.add(newData).draw();
       } else {
         console.error("Latest key data is missing or invalid.");
+        alert('Latest key data is missing or invalid.');
         // Handle the error appropriately, e.g., display a message to the user
       }
     } catch (error) {
@@ -100,7 +114,10 @@ <h5 class="card-title">Add last used RFID card as new user: <span id="used-key-a
       return data.map(user => {
         return {
           name: user.user_name,
+          email: user.user_email,
+          phone: user.user_phone,
           key: user.user_key,
+          latestActivity: user.latest_activity,
           ...user.permissions.reduce((acc, obj) => {
             acc[obj.device_name] = {
               allowed: obj.allowed,
@@ -108,8 +125,6 @@ <h5 class="card-title">Add last used RFID card as new user: <span id="used-key-a
             }
             return acc
           }, {}),
-          latestActivity: user.latest_activity,
-          email: user.user_email,
           operation: '<button class="btn btn-sm btn-danger" onclick="deleteUser(\'' + user.user_key + '\')">Delete</button>'
         }
       })
@@ -149,12 +164,15 @@ <h5 class="card-title">Add last used RFID card as new user: <span id="used-key-a
       }
       return {
         data: (row) => {
-          const value = row[key]
-          return typeof value === 'string'
-            ? value
-            : `<input type="checkbox" ${value?.allowed ? "checked" : ""} onchange="updatePermissions('${row.key}', '${value?.device_id}', ${value?.allowed})">`
+          const value = row[key];
+          // If value is null or undefined, return empty string (no checkbox)
+          if (value === null || value === undefined) return '';
+          // If value is a string, just return it
+          if (typeof value === 'string') return value;
+          // Otherwise, render checkbox for permissions
+          return `<input type="checkbox" ${value?.allowed ? "checked" : ""} onchange="updatePermissions('${row.key}', '${value?.device_id}', ${value?.allowed})">`;
         },
-        visible: key !== 'key',
+        visible: key !== 'key', 
         title: key.charAt(0).toUpperCase() + key.slice(1)
       }
     })