diff --git a/core/__pycache__/views.cpython-311.pyc b/core/__pycache__/views.cpython-311.pyc
index ed38371..8b344ba 100644
Binary files a/core/__pycache__/views.cpython-311.pyc and b/core/__pycache__/views.cpython-311.pyc differ
diff --git a/core/templates/core/barcode_labels.html b/core/templates/core/barcode_labels.html
index f792fd0..15ad3dd 100644
--- a/core/templates/core/barcode_labels.html
+++ b/core/templates/core/barcode_labels.html
@@ -219,11 +219,8 @@
             page-break-after: always;
             box-sizing: border-box;
             
-            /* Use Flexbox for Grid Layout - More reliable for print */
-            display: flex !important;
-            flex-wrap: wrap !important;
-            justify-content: flex-start !important;
-            align-items: flex-start !important;
+            /* Revert to Block + Float for reliability in all print engines */
+            display: block !important; 
         }
         
         /* Direct print container override */
@@ -238,13 +235,24 @@
             box-sizing: border-box;
             text-align: center;
             overflow: hidden;
-            display: flex;
+            /* Float strategy for grid */
+            float: left !important;
+            /* Keep flex for INTERNAL content alignment only */
+            display: flex !important; 
             flex-direction: column;
             justify-content: center;
             align-items: center;
-            /* REMOVED width: 100% to prevent full-width expansion */
+            
             page-break-inside: avoid;
-            float: left; /* Fallback */
+            page-break-after: avoid;
+            margin: 0 !important;
+        }
+
+        /* Clearfix for sheet if needed, though usually fixed height handles it */
+        .label-sheet::after {
+            content: "";
+            display: table;
+            clear: both;
         }
 
         /* --- SHEET CONFIGURATIONS (Flexbox + Explicit Dimensions) --- */
diff --git a/core/templates/core/invoices.html b/core/templates/core/invoices.html
index 30d4f09..aa7a1bf 100644
--- a/core/templates/core/invoices.html
+++ b/core/templates/core/invoices.html
@@ -112,6 +112,11 @@
                                         <i class="bi bi-receipt"></i>
                                     </a>
                                     {% endif %}
+                                    <button type="button" class="btn btn-sm btn-white border text-success" 
+                                            onclick="openWhatsAppModal('{{ sale.id }}', '{{ sale.customer.phone|default:'' }}', '{{ sale.invoice_number|default:sale.id }}')"
+                                            title="{% trans 'Send via WhatsApp' %}">
+                                        <i class="bi bi-whatsapp"></i>
+                                    </button>
                                     <a href="{% url 'invoice_detail' sale.id %}" class="btn btn-sm btn-white border" title="{% trans 'View & Print' %}">
                                         <i class="bi bi-printer"></i>
                                     </a>
@@ -202,5 +207,86 @@
                 {% include "core/pagination.html" with page_obj=sales %}
         </div>
     </div>
+
+    <!-- WhatsApp Modal -->
+    <div class="modal fade" id="whatsappModal" tabindex="-1">
+        <div class="modal-dialog">
+            <div class="modal-content border-0 shadow rounded-4">
+                <div class="modal-header border-0">
+                    <h5 class="fw-bold">{% trans "Send Invoice via WhatsApp" %}</h5>
+                    <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
+                </div>
+                <div class="modal-body">
+                    <input type="hidden" id="waSaleId">
+                    <div class="mb-3">
+                        <label class="form-label small fw-bold">{% trans "Invoice #" %}</label>
+                        <input type="text" id="waInvoiceNum" class="form-control-plaintext fw-bold" readonly>
+                    </div>
+                    <div class="mb-3">
+                        <label class="form-label small fw-bold">{% trans "Phone Number" %}</label>
+                        <input type="text" id="waPhone" class="form-control rounded-3" placeholder="e.g. 628123456789">
+                        <div class="form-text">{% trans "Enter number with country code (e.g., 62...)" %}</div>
+                    </div>
+                </div>
+                <div class="modal-footer border-0">
+                    <button type="button" class="btn btn-light rounded-3" data-bs-dismiss="modal">{% trans "Cancel" %}</button>
+                    <button type="button" class="btn btn-success rounded-3 px-4" onclick="sendWhatsAppFromList()">
+                        <span id="waSpinner" class="spinner-border spinner-border-sm d-none me-2"></span>
+                        {% trans "Send Message" %}
+                    </button>
+                </div>
+            </div>
+        </div>
+    </div>
 </div>
+
+<script>
+function openWhatsAppModal(saleId, phone, invoiceNum) {
+    document.getElementById('waSaleId').value = saleId;
+    document.getElementById('waPhone').value = phone;
+    document.getElementById('waInvoiceNum').value = invoiceNum;
+    new bootstrap.Modal(document.getElementById('whatsappModal')).show();
+}
+
+async function sendWhatsAppFromList() {
+    const saleId = document.getElementById('waSaleId').value;
+    const phone = document.getElementById('waPhone').value;
+    const btn = document.querySelector('#whatsappModal .btn-success');
+    const spinner = document.getElementById('waSpinner');
+
+    if (!phone) {
+        alert("{% trans 'Please enter a phone number.' %}");
+        return;
+    }
+
+    btn.disabled = true;
+    spinner.classList.remove('d-none');
+
+    try {
+        const response = await fetch("{% url 'send_invoice_whatsapp' %}", {
+            method: 'POST',
+            headers: {
+                'Content-Type': 'application/json',
+                'X-CSRFToken': '{{ csrf_token }}'
+            },
+            body: JSON.stringify({ sale_id: saleId, phone: phone })
+        });
+        
+        const data = await response.json();
+        
+        if (data.success) {
+            alert(data.message || "{% trans 'Message sent successfully!' %}");
+            bootstrap.Modal.getInstance(document.getElementById('whatsappModal')).hide();
+        } else {
+            alert(data.error || "{% trans 'Failed to send message.' %}");
+        }
+    } catch (e) {
+        alert("{% trans 'An error occurred.' %}");
+        console.error(e);
+    } finally {
+        btn.disabled = false;
+        spinner.classList.add('d-none');
+    }
+}
+</script>
 {% endblock %}
\ No newline at end of file
diff --git a/core/templates/core/purchases.html b/core/templates/core/purchases.html
index 3b9da07..db5c412 100644
--- a/core/templates/core/purchases.html
+++ b/core/templates/core/purchases.html
@@ -15,6 +15,43 @@
         </a>
     </div>
 
+    <!-- Filter Form -->
+    <div class="card border-0 shadow-sm rounded-4 mb-4">
+        <div class="card-body">
+            <form method="GET" class="row g-3">
+                <div class="col-md-3">
+                    <label class="form-label small fw-bold">{% trans "Search" %}</label>
+                    <input type="text" name="q" class="form-control rounded-3" placeholder="{% trans 'Purchase / Invoice No' %}" value="{{ search_query }}">
+                </div>
+                <div class="col-md-2">
+                    <label class="form-label small fw-bold">{% trans "Date From" %}</label>
+                    <input type="date" name="start_date" class="form-control rounded-3" value="{{ start_date }}">
+                </div>
+                <div class="col-md-2">
+                    <label class="form-label small fw-bold">{% trans "Date To" %}</label>
+                    <input type="date" name="end_date" class="form-control rounded-3" value="{{ end_date }}">
+                </div>
+                <div class="col-md-3">
+                    <label class="form-label small fw-bold">{% trans "Supplier" %}</label>
+                    <select name="supplier" class="form-select rounded-3">
+                        <option value="">{% trans "All Suppliers" %}</option>
+                        {% for s in suppliers %}
+                        <option value="{{ s.id }}" {% if selected_supplier == s.id %}selected{% endif %}>{{ s.name }}</option>
+                        {% endfor %}
+                    </select>
+                </div>
+                <div class="col-md-2 d-flex align-items-end gap-2">
+                    <button type="submit" class="btn btn-primary w-100 rounded-3" title="{% trans 'Filter' %}">
+                        <i class="bi bi-search"></i>
+                    </button>
+                    <a href="{% url 'purchases' %}" class="btn btn-light w-100 rounded-3 border" title="{% trans 'Clear' %}">
+                        <i class="bi bi-x-lg"></i>
+                    </a>
+                </div>
+            </form>
+        </div>
+    </div>
+
     {% if messages %}
     <div class="mb-4">
         {% for message in messages %}
diff --git a/core/views.py b/core/views.py
index 90d3046..baf20a0 100644
--- a/core/views.py
+++ b/core/views.py
@@ -733,19 +733,55 @@ def delete_sale_return(request, pk):
 
 # --- Purchases ---
 
-@login_required
 @login_required
 def purchases(request):
-    purchases = Purchase.objects.all().order_by('-created_at')
+    # Base QuerySet
+    purchases_qs = Purchase.objects.select_related('supplier', 'created_by').all().order_by('-created_at')
+
+    # Filtering
+    search_query = request.GET.get('q', '')
+    start_date = request.GET.get('start_date')
+    end_date = request.GET.get('end_date')
+    supplier_id = request.GET.get('supplier')
+
+    if search_query:
+        purchases_qs = purchases_qs.filter(
+            Q(invoice_number__icontains=search_query) |
+            Q(notes__icontains=search_query) |
+            Q(id__icontains=search_query)
+        )
+    
+    if start_date:
+        purchases_qs = purchases_qs.filter(created_at__date__gte=start_date)
+    
+    if end_date:
+        purchases_qs = purchases_qs.filter(created_at__date__lte=end_date)
+        
+    if supplier_id:
+        purchases_qs = purchases_qs.filter(supplier_id=supplier_id)
+
+    # Pagination
+    paginator = Paginator(purchases_qs, 20)
+    page_number = request.GET.get('page')
+    page_obj = paginator.get_page(page_number)
+
+    # Context Data
     payment_methods = PaymentMethod.objects.filter(is_active=True)
     site_settings = SystemSetting.objects.first()
     if not site_settings:
         site_settings = SystemSetting.objects.create()
-        
+    
+    suppliers = Supplier.objects.all().order_by('name')
+
     return render(request, 'core/purchases.html', {
-        'purchases': purchases,
+        'purchases': page_obj,
         'payment_methods': payment_methods,
-        'site_settings': site_settings
+        'site_settings': site_settings,
+        'suppliers': suppliers,
+        'search_query': search_query,
+        'start_date': start_date,
+        'end_date': end_date,
+        'selected_supplier': int(supplier_id) if supplier_id and supplier_id.isdigit() else None
     })
 
 @login_required