diff --git a/src/Controller/WarrantyController.php b/src/Controller/WarrantyController.php
index b25fd14d..38000a48 100644
--- a/src/Controller/WarrantyController.php
+++ b/src/Controller/WarrantyController.php
@@ -462,6 +462,7 @@ class WarrantyController extends Controller
             // csv output
             $csv_handle = fopen('php://output', 'w+');
             fputcsv($csv_handle, [
+                'Row Num',
                 'Encoded By',
                 'Date of Encoded',
                 'Owner First Name',
diff --git a/src/Service/WarrantyBulkUploader.php b/src/Service/WarrantyBulkUploader.php
index 085386a4..8ba278a3 100644
--- a/src/Service/WarrantyBulkUploader.php
+++ b/src/Service/WarrantyBulkUploader.php
@@ -37,6 +37,8 @@ class WarrantyBulkUploader
     const F_BATT_ID       = 18;   // sap code in system
     const F_OWNER_TYPE    = 19;
 
+    const F_TOTAL         = 20;
+
     protected $em;
     protected $batt_hash;
     
@@ -77,7 +79,7 @@ class WarrantyBulkUploader
             }
 
             // process row
-            $output_info[] = $this->processRow($fields, $sql_values);
+            $output_info[] = $this->processRow($fields, $sql_values, $row_num);
 
             $row_num++;
         }
@@ -100,7 +102,7 @@ class WarrantyBulkUploader
         return $output_info;
     }
 
-    protected function processRow($fields, &$sql_values)
+    protected function processRow($fields, &$sql_values, $row_num)
     {
         // error_log('Processing warranty with serial ' . trim($fields[self::F_SERIAL]));
 
@@ -116,7 +118,7 @@ class WarrantyBulkUploader
         $plate_number = $this->cleanPlateNumber($fields[self::F_PLATE_NUMBER]);
 
         // validate the necessary fields
-        $output_info = $this->validateFields($fields);
+        $output_info = $this->validateFields($fields, $row_num);
         if (!empty($output_info))
             return $output_info;
 
@@ -192,15 +194,24 @@ class WarrantyBulkUploader
 
         // if we reach this point, warranty is going to be uploaded 
         // so we also output to file the warranty that will be uploaded
-        $output_info = $this->setOutputInfo($fields, 'UPLOADED', '');        
+        $output_info = $this->setOutputInfo($fields, 'UPLOADED', '', $row_num);        
 
         return $output_info;
     }
 
-    protected function validateFields($fields)
+    protected function validateFields($fields, $row_num)
     {
         $errors = [];
 
+        // check number of fields. 
+        // (1) should match what is in F_TOTAL
+        if (count($fields) != self::F_TOTAL)
+        {
+            $message = 'Invalid row.';
+            $errors = $this->setOutputInfo($fields, 'NOT UPLOADED', $message, $row_num);
+            return $errors;    
+        }
+
         $serial = trim($fields[self::F_SERIAL]);
         $date_purchase = trim($fields[self::F_DATE_PURCHASE]);
         $sap_code = trim($fields[self::F_BATT_ID]);
@@ -214,16 +225,16 @@ class WarrantyBulkUploader
         if (empty($clean_plate))
         {
             $message = 'No plate number.';
-            $errors = $this->setOutputInfo($fields, 'NOT UPLOADED', $message);
+            $errors = $this->setOutputInfo($fields, 'NOT UPLOADED', $message, $row_num);
             return $errors;
         }
         // validate date purchase
         // (1) date purchase should not be empty
-        // (2) date purchase should be of format: d-M-y
+        // (2) date purchase should be of format: m/d/y 
         if (empty($date_purchase))
         {
             $message = 'No date purchase.';
-            $errors = $this->setOutputInfo($fields, 'NOT UPLOADED', $message);
+            $errors = $this->setOutputInfo($fields, 'NOT UPLOADED', $message, $row_num);
             return $errors;
         }
 
@@ -231,7 +242,7 @@ class WarrantyBulkUploader
         if ($purchase_date === false)
         {
             $message = 'Invalid date format. Date format should be: m/d/y (example: 06/13/16)';
-            $errors = $this->setOutputInfo($fields, 'NOT UPLOADED', $message);
+            $errors = $this->setOutputInfo($fields, 'NOT UPLOADED', $message, $row_num);
             return $errors;
         }
         // validate serial
@@ -239,7 +250,7 @@ class WarrantyBulkUploader
         if (empty($serial))
         {
             $message = 'No battery serial number.';
-            $errors = $this->setOutputInfo($fields, 'NOT UPLOADED', $message);
+            $errors = $this->setOutputInfo($fields, 'NOT UPLOADED', $message, $row_num);
             return $errors;
         }
         // validate battery
@@ -248,14 +259,14 @@ class WarrantyBulkUploader
         if (empty($sap_code))
         {
             $message = 'No battery ID.';
-            $errors = $this->setOutputInfo($fields, 'NOT UPLOADED', $message);
+            $errors = $this->setOutputInfo($fields, 'NOT UPLOADED', $message, $row_num);
             return $errors;
         }
   
         if (!(isset($this->batt_hash[$sap_code])))
         {
             $message = 'Battery not found.';
-            $errors = $this->setOutputInfo($fields, 'NOT UPLOADED', $message);
+            $errors = $this->setOutputInfo($fields, 'NOT UPLOADED', $message, $row_num);
             return $errors;
         }
 
@@ -276,7 +287,7 @@ class WarrantyBulkUploader
         if (!empty($warr_results))
         {
             $message = 'Warranty already exists for serial and plate number.';
-            $errors = $this->setOutputInfo($fields, 'NOT UPLOADED', $message);
+            $errors = $this->setOutputInfo($fields, 'NOT UPLOADED', $message, $row_num);
             return $errors;
         }
 
@@ -292,7 +303,7 @@ class WarrantyBulkUploader
         if (!empty($w_results))
         {
             $message = 'Warranty already exists for serial.';
-            $errors = $this->setOutputInfo($fields, 'NOT UPLOADED', $message);
+            $errors = $this->setOutputInfo($fields, 'NOT UPLOADED', $message, $row_num);
             return $errors;
         }
 
@@ -306,8 +317,16 @@ class WarrantyBulkUploader
         return $expire_date;
     }
 
-    protected function setOutputInfo($fields, $status, $message)
+    protected function setOutputInfo($fields, $status, $message, $row_num)
     {
+        if (count($fields) != self::F_TOTAL)
+        {
+            // since we don't know field might be missing, we just output status and reason
+            return [
+                $row_num,'','','','','','','','','','','','','','','','','','','','', $status, $message,
+            ];
+        }
+
         $encoder = trim($fields[self::F_ENCODER]);
         $date_encoded = trim($fields[self::F_DATE_ENCODED]);
         $fname = trim($fields[self::F_FNAME]);
@@ -330,6 +349,7 @@ class WarrantyBulkUploader
         $owner_type = trim($fields[self::F_OWNER_TYPE]);
 
         return [
+            $row_num,
             $encoder,
             $date_encoded,
             $fname,