diff --git a/app/Views/customer_form.php b/app/Views/customer_form.php
index 7a8c162d..1a6c1750 100755
--- a/app/Views/customer_form.php
+++ b/app/Views/customer_form.php
@@ -173,7 +173,7 @@
                                         </div>
                                         <div class="form-group col-md-3">
                                             <label for="bzip" class="col-form-label">Postal Code<span class="text-danger"> *</span></label>
-                                            <input type="number" class="form-control" id="bzip" name="bzip[]" placeholder="Postal Code" required pattern="\d*" maxlength="6" />
+                                            <input type="number" class="form-control" id="bzip" name="bzip[]" placeholder="Postal Code" required pattern="\d*" maxlength="6" oninput="this.value=this.value.slice(0, this.maxLength)" pattern="\d{6}" title="Please enter a 6-digit postal code." />
                                             
                                         </div>
                                     </div>
@@ -245,7 +245,7 @@
                                         </div>
                                         <div class="form-group col-md-3">
                                             <label for="szip" class="col-form-label">Postal Code<span class="text-danger"> *</span></label>
-                                            <input type="number" class="form-control" id="szip" name="szip[]" placeholder="Postal Code" required pattern="\d*" maxlength="6" />
+                                            <input type="number" class="form-control" id="szip" name="szip[]" placeholder="Postal Code" required pattern="\d*" maxlength="6" oninput="this.value=this.value.slice(0, this.maxLength)" pattern="\d{6}" title="Please enter a 6-digit postal code." />
                                             
                                         </div>
 
diff --git a/app/Views/invoice_form.php b/app/Views/invoice_form.php
index 455e82f3..23e3dfbd 100755
--- a/app/Views/invoice_form.php
+++ b/app/Views/invoice_form.php
@@ -720,7 +720,7 @@ if (isset($invoice_item_details[0]['to_subscription']) && !empty($invoice_item_d
                                         </div>
                                         <div class="form-group col-md-6">
                                             <label for="bpincode" class="col-form-label">Pincode</span></label>
-                                            <input type="number" class="form-control" id="bpincode" name="bpincode" minlength="6" maxlength="6" placeholder="Pincode" />
+                                            <input type="number" class="form-control" id="bpincode" name="bpincode" maxlength="6" oninput="this.value=this.value.slice(0, this.maxLength)" pattern="\d{6}" title="Please enter a 6-digit postal code." placeholder="Pincode" />
                                             
                                         </div>
                                         <div class="form-row">
@@ -772,7 +772,7 @@ if (isset($invoice_item_details[0]['to_subscription']) && !empty($invoice_item_d
                                                     <!-- Pincode -->
                                                     <div class="form-group col-md-6">
                                                         <label for="spincode" class="col-form-label">Pincode</span></label>
-                                                        <input type="number" class="form-control" id="spincode" name="spincode" minlength="6" maxlength="6" placeholder="Pincode"  />
+                                                        <input type="number" class="form-control" id="spincode" name="spincode" maxlength="6" oninput="this.value=this.value.slice(0, this.maxLength)" pattern="\d{6}" title="Please enter a 6-digit postal code." placeholder="Pincode"  />
                                                         
                                                     </div>
                                                 </div>
@@ -886,7 +886,7 @@ if (isset($invoice_item_details[0]['to_subscription']) && !empty($invoice_item_d
                         <div class="col-md-4">
                             <div class="form-group">
                                 <label for="quick_billing_postal_code"> Postal Code<span class="text-danger"> *</span></label>
-                                <input class="form-control" type="number" id="quick_billing_postal_code" required placeholder="Postal Code" maxlength="6">
+                                <input class="form-control" type="number" id="quick_billing_postal_code" required placeholder="Postal Code" maxlength="6" oninput="this.value=this.value.slice(0, this.maxLength)" pattern="\d{6}" title="Please enter a 6-digit postal code.">
                             </div>
                         </div>
                         <div class="form-group col-md-12 text-right">
@@ -934,7 +934,7 @@ if (isset($invoice_item_details[0]['to_subscription']) && !empty($invoice_item_d
                         <div class="col-md-4">
                             <div class="form-group">
                                 <label for="quick_shipping_postal_code"> Postal Code<span class="text-danger"> *</span></label>
-                                <input class="form-control" type="number" id="quick_shipping_postal_code" required placeholder="Postal Code" maxlength="6">
+                                <input class="form-control" type="number" id="quick_shipping_postal_code" required placeholder="Postal Code" maxlength="6" oninput="this.value=this.value.slice(0, this.maxLength)" pattern="\d{6}" title="Please enter a 6-digit postal code.>
                             </div>
                         </div>
                     </div>