diff --git a/src/hospitality-web/src/App.tsx b/src/hospitality-web/src/App.tsx
index 326932b..4affffc 100644
--- a/src/hospitality-web/src/App.tsx
+++ b/src/hospitality-web/src/App.tsx
@@ -2,6 +2,7 @@ import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
 import { BrowserRouter, Routes, Route, Link } from 'react-router-dom';
 import EventsPage from './pages/admin/EventsPage';
 import EventDetailPage from './pages/admin/EventDetailPage';
+import GroupDetailPage from './pages/admin/GroupDetailPage';
 import ScannerPage from './pages/staff/ScannerPage';
 import GuestQrPage from './pages/guest/GuestQrPage';
 
@@ -34,6 +35,7 @@ function App() {
             <Routes>
               <Route path="/" element={<EventsPage />} />
               <Route path="/events/:id" element={<EventDetailPage />} />
+              <Route path="/groups/:id" element={<GroupDetailPage />} />
               <Route path="/staff" element={<ScannerPage />} />
               <Route path="/guest" element={<GuestQrPage />} />
             </Routes>
diff --git a/src/hospitality-web/src/hooks/useGroups.ts b/src/hospitality-web/src/hooks/useGroups.ts
index 28d75ad..170624f 100644
--- a/src/hospitality-web/src/hooks/useGroups.ts
+++ b/src/hospitality-web/src/hooks/useGroups.ts
@@ -50,15 +50,16 @@ export const useCreatePerson = (groupId: string) => {
   });
 };
 
-export const useAssignQuota = (personId: string) => {
+export const useAssignQuota = () => {
   const queryClient = useQueryClient();
   return useMutation({
-    mutationFn: async (data: AssignQuotaRequest) => {
+    mutationFn: async ({ personId, data }: { personId: string; data: AssignQuotaRequest }) => {
       const response = await peopleApi.assignQuota(personId, data);
       return response.data;
     },
-    onSuccess: () => {
-      queryClient.invalidateQueries({ queryKey: ['people', personId] });
+    onSuccess: (_, variables) => {
+      queryClient.invalidateQueries({ queryKey: ['people', variables.personId] });
+      queryClient.invalidateQueries({ queryKey: ['groups'] });
     },
   });
 };
diff --git a/src/hospitality-web/src/pages/admin/EventDetailPage.tsx b/src/hospitality-web/src/pages/admin/EventDetailPage.tsx
index 36144fb..128b4ac 100644
--- a/src/hospitality-web/src/pages/admin/EventDetailPage.tsx
+++ b/src/hospitality-web/src/pages/admin/EventDetailPage.tsx
@@ -1,18 +1,19 @@
 import { useState } from 'react';
-import { useParams } from 'react-router-dom';
+import { useParams, useNavigate } from 'react-router-dom';
 import { useEvent } from '../../hooks/useEvents';
-import { useGroups, useCreateGroup, useCreatePerson } from '../../hooks/useGroups';
+import { useGroups, useCreateGroup } from '../../hooks/useGroups';
 import { useProducts, useCreateProduct } from '../../hooks/useProducts';
-import { ProductType, type CreateGroupRequest, type CreatePersonRequest, type CreateProductRequest } from '../../lib/types';
+import { ProductType, type CreateGroupRequest, type CreateProductRequest } from '../../lib/types';
 
 export default function EventDetailPage() {
   const { id } = useParams<{ id: string }>();
+  const navigate = useNavigate();
   const { data: event } = useEvent(id!);
   const { data: groups } = useGroups(id!);
   const { data: products } = useProducts(id!);
   const createGroup = useCreateGroup(id!);
   const createProduct = useCreateProduct(id!);
-  
+
   const [showGroupForm, setShowGroupForm] = useState(false);
   const [showProductForm, setShowProductForm] = useState(false);
   const [groupForm, setGroupForm] = useState<CreateGroupRequest>({ name: '' });
@@ -91,7 +92,11 @@ export default function EventDetailPage() {
 
           <div className="space-y-3">
             {groups?.map((group) => (
-              <div key={group.id} className="bg-white p-4 rounded-lg shadow">
+              <div
+                key={group.id}
+                onClick={() => navigate(`/groups/${group.id}`)}
+                className="bg-white p-4 rounded-lg shadow cursor-pointer hover:shadow-lg transition-shadow"
+              >
                 <h3 className="font-semibold text-lg">{group.name}</h3>
                 {group.contactPersonName && (
                   <p className="text-sm text-gray-600">{group.contactPersonName}</p>
diff --git a/src/hospitality-web/src/pages/admin/GroupDetailPage.tsx b/src/hospitality-web/src/pages/admin/GroupDetailPage.tsx
new file mode 100644
index 0000000..c597ca8
--- /dev/null
+++ b/src/hospitality-web/src/pages/admin/GroupDetailPage.tsx
@@ -0,0 +1,201 @@
+import { useState } from 'react';
+import { useParams } from 'react-router-dom';
+import { useGroup, useCreatePerson, useAssignQuota } from '../../hooks/useGroups';
+import { useProducts } from '../../hooks/useProducts';
+import type { CreatePersonRequest, Person } from '../../lib/types';
+
+export default function GroupDetailPage() {
+  const { id } = useParams<{ id: string }>();
+  const { data: group, refetch } = useGroup(id!);
+  const createPerson = useCreatePerson(id!);
+  const assignQuota = useAssignQuota();
+
+  const [showPersonForm, setShowPersonForm] = useState(false);
+  const [personForm, setPersonForm] = useState<CreatePersonRequest>({ name: '' });
+  const [selectedPerson, setSelectedPerson] = useState<Person | null>(null);
+  const [quotaProductId, setQuotaProductId] = useState('');
+  const [quotaAmount, setQuotaAmount] = useState(1);
+
+  // Get event ID from group data
+  const eventId = group?.eventId || '';
+  const { data: products } = useProducts(eventId);
+
+  const handleCreatePerson = async (e: React.FormEvent) => {
+    e.preventDefault();
+    await createPerson.mutateAsync(personForm);
+    setPersonForm({ name: '' });
+    setShowPersonForm(false);
+    refetch();
+  };
+
+  const handleAssignQuota = async (personId: string) => {
+    if (!quotaProductId) return;
+
+    try {
+      await assignQuota.mutateAsync({
+        personId,
+        data: {
+          productId: quotaProductId,
+          initialAmount: quotaAmount,
+        },
+      });
+      alert('Quota assigned successfully!');
+      setQuotaProductId('');
+      setQuotaAmount(1);
+      refetch();
+    } catch (error) {
+      alert('Failed to assign quota');
+    }
+  };
+
+  if (!group) return <div className="p-8">Loading...</div>;
+
+  return (
+    <div className="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8 py-8">
+      <div className="mb-8">
+        <h1 className="text-3xl font-bold text-gray-900">{group.name}</h1>
+        {group.contactPersonName && (
+          <p className="text-gray-600 mt-2">Contact: {group.contactPersonName}</p>
+        )}
+        {group.contactEmail && (
+          <p className="text-gray-600">{group.contactEmail}</p>
+        )}
+      </div>
+
+      <div className="flex justify-between items-center mb-6">
+        <h2 className="text-2xl font-semibold">People ({group.people?.length || 0})</h2>
+        <button
+          onClick={() => setShowPersonForm(!showPersonForm)}
+          className="bg-blue-600 text-white px-4 py-2 rounded-lg hover:bg-blue-700"
+        >
+          {showPersonForm ? 'Cancel' : 'Add Person'}
+        </button>
+      </div>
+
+      {showPersonForm && (
+        <div className="bg-white p-6 rounded-lg shadow mb-6">
+          <h3 className="text-lg font-semibold mb-4">Add New Person</h3>
+          <form onSubmit={handleCreatePerson} className="space-y-4">
+            <div>
+              <label className="block text-sm font-medium text-gray-700 mb-1">Name *</label>
+              <input
+                type="text"
+                required
+                value={personForm.name}
+                onChange={(e) => setPersonForm({ ...personForm, name: e.target.value })}
+                className="w-full px-3 py-2 border border-gray-300 rounded-lg"
+              />
+            </div>
+            <div>
+              <label className="block text-sm font-medium text-gray-700 mb-1">Email</label>
+              <input
+                type="email"
+                value={personForm.email || ''}
+                onChange={(e) => setPersonForm({ ...personForm, email: e.target.value })}
+                className="w-full px-3 py-2 border border-gray-300 rounded-lg"
+              />
+            </div>
+            <div>
+              <label className="block text-sm font-medium text-gray-700 mb-1">Phone Number</label>
+              <input
+                type="tel"
+                value={personForm.phoneNumber || ''}
+                onChange={(e) => setPersonForm({ ...personForm, phoneNumber: e.target.value })}
+                className="w-full px-3 py-2 border border-gray-300 rounded-lg"
+              />
+            </div>
+            <button
+              type="submit"
+              disabled={createPerson.isPending}
+              className="w-full bg-blue-600 text-white px-4 py-2 rounded-lg hover:bg-blue-700 disabled:opacity-50"
+            >
+              {createPerson.isPending ? 'Adding...' : 'Add Person'}
+            </button>
+          </form>
+        </div>
+      )}
+
+      <div className="grid grid-cols-1 lg:grid-cols-2 gap-6">
+        {group.people?.map((person) => (
+          <div key={person.id} className="bg-white p-6 rounded-lg shadow">
+            <div className="flex justify-between items-start mb-4">
+              <div>
+                <h3 className="text-lg font-semibold text-gray-900">{person.name}</h3>
+                {person.email && <p className="text-sm text-gray-600">{person.email}</p>}
+                {person.phoneNumber && <p className="text-sm text-gray-600">{person.phoneNumber}</p>}
+                <p className="text-xs text-gray-500 mt-2 font-mono">QR: {person.qrCode}</p>
+              </div>
+              <button
+                onClick={() => setSelectedPerson(selectedPerson?.id === person.id ? null : person)}
+                className="text-blue-600 hover:text-blue-700 text-sm font-medium"
+              >
+                {selectedPerson?.id === person.id ? 'Close' : 'Assign Quota'}
+              </button>
+            </div>
+
+            {person.quotas && person.quotas.length > 0 && (
+              <div className="border-t pt-4 mt-4">
+                <h4 className="text-sm font-semibold text-gray-700 mb-2">Current Quotas</h4>
+                <div className="space-y-2">
+                  {person.quotas.map((quota) => (
+                    <div key={quota.productId} className="flex justify-between text-sm">
+                      <span>{quota.productName}</span>
+                      <span className="font-semibold">{quota.remainingAmount}/{quota.initialAmount}</span>
+                    </div>
+                  ))}
+                </div>
+              </div>
+            )}
+
+            {selectedPerson?.id === person.id && (
+              <div className="border-t pt-4 mt-4">
+                <h4 className="text-sm font-semibold text-gray-700 mb-3">Assign New Quota</h4>
+                <div className="space-y-3">
+                  <select
+                    value={quotaProductId}
+                    onChange={(e) => setQuotaProductId(e.target.value)}
+                    className="w-full px-3 py-2 border border-gray-300 rounded-lg text-sm"
+                  >
+                    <option value="">Select Product</option>
+                    {products?.map((product) => (
+                      <option key={product.id} value={product.id}>
+                        {product.name}
+                      </option>
+                    ))}
+                  </select>
+                  <input
+                    type="number"
+                    min="1"
+                    value={quotaAmount}
+                    onChange={(e) => setQuotaAmount(parseInt(e.target.value))}
+                    placeholder="Amount"
+                    className="w-full px-3 py-2 border border-gray-300 rounded-lg text-sm"
+                  />
+                  <button
+                    onClick={() => handleAssignQuota(person.id)}
+                    disabled={!quotaProductId || assignQuota.isPending}
+                    className="w-full bg-green-600 text-white px-4 py-2 rounded-lg hover:bg-green-700 disabled:opacity-50 text-sm"
+                  >
+                    {assignQuota.isPending ? 'Assigning...' : 'Assign Quota'}
+                  </button>
+                </div>
+              </div>
+            )}
+          </div>
+        ))}
+      </div>
+
+      {(!group.people || group.people.length === 0) && !showPersonForm && (
+        <div className="text-center py-12 bg-gray-50 rounded-lg">
+          <p className="text-gray-500">No people in this group yet.</p>
+          <button
+            onClick={() => setShowPersonForm(true)}
+            className="mt-4 text-blue-600 hover:text-blue-700 font-medium"
+          >
+            Add the first person
+          </button>
+        </div>
+      )}
+    </div>
+  );
+}