diff --git a/app/Filament/Imports/CharacteristicValueImporter.php b/app/Filament/Imports/CharacteristicValueImporter.php
index 90bf542..19cb4d0 100644
--- a/app/Filament/Imports/CharacteristicValueImporter.php
+++ b/app/Filament/Imports/CharacteristicValueImporter.php
@@ -112,22 +112,30 @@ class CharacteristicValueImporter extends Importer
         $iCode = trim($this->data['item']);
         $workCenter = trim($this->data['machine']);
         $lineName = trim($this->data['line']);
-        $status = trim($this->data['status']);
-        $createdBy = trim($this->data['created_by']);
         $coilNo = trim($this->data['coil_number']);
         $obserVal = trim($this->data['observed_value']);
+        $status = trim($this->data['status']);
+        $createdBy = trim($this->data['created_by']);
 
         if ($plantCode == null || $plantCode == '') {
             $warnMsg[] = 'Plant code cannot be empty';
-        } elseif ($iCode == null || $iCode == '') {
+        } elseif ($iCode == null || $iCode == '') {// process_order
+            $warnMsg[] = 'Item code cannot be empty';
+        } elseif ($processOrder == null || $processOrder == '') {//
             $warnMsg[] = 'Process Order cannot be empty';
         } elseif ($workCenter == null || $workCenter == '') {
             $warnMsg[] = 'Work center cannot be empty';
         } elseif ($lineName == null || $lineName == '') {
-            $warnMsg[] = 'Line cannot be empty';
+            $warnMsg[] = 'Line name cannot be empty';
+        } elseif ($coilNo == null || $coilNo == '') {
+            $warnMsg[] = 'Coil number cannot be empty';
+        } elseif ($obserVal == null || $obserVal == '') {
+            $warnMsg[] = 'Observed value cannot be empty';
+        } elseif ($status == null || $status == '') {
+            $warnMsg[] = 'Status cannot be empty';
         }
 
-        if (Str::length($plantCode) < 4 || ! is_numeric($plantCode) || ! preg_match('/^[1-9]\d{3,}$/', $plantCode)) {
+        if (Str::length($plantCode) > 0 && (Str::length($plantCode) < 4 || ! is_numeric($plantCode) || ! preg_match('/^[1-9]\d{3,}$/', $plantCode))) {
             $warnMsg[] = 'Invalid plant code found';
         } else {
             $plant = Plant::where('code', $plantCode)->first();
@@ -138,7 +146,7 @@ class CharacteristicValueImporter extends Importer
             }
         }
 
-        if (Str::length($iCode) < 6 || ! ctype_alnum($iCode)) {
+        if (Str::length($iCode) > 0 && (Str::length($iCode) < 6 || ! ctype_alnum($iCode))) {
             $warnMsg[] = 'Invalid item code found';
         } else {
             $itemCode = Item::where('code', $iCode)->first();
@@ -198,25 +206,15 @@ class CharacteristicValueImporter extends Importer
             }
         }
 
-        if ($processOrder == null || $processOrder == '') {
-            $warnMsg[] = 'Process Order cannot be empty';
-        }
-
-        if ($coilNo == null || $coilNo == '') {
-            $warnMsg[] = 'Coil No cannot be empty';
-        } elseif (! is_numeric($coilNo)) {
+        if (Str::length($coilNo) > 0 && ! is_numeric($coilNo)) {
             $warnMsg[] = 'Coil number should contain only numeric values!';
         }
 
-        if ($obserVal == null || $obserVal == '') {
-            $warnMsg[] = 'Observed value cannot be empty';
-        } elseif (! is_numeric($obserVal)) {
+        if (Str::length($obserVal) > 0 && ! is_numeric($obserVal)) {
             $warnMsg[] = 'Observed value should contain only numeric values!';
         }
 
-        if ($status == null || $status == '' || ! $status) {
-            $warnMsg[] = 'Status cannot be empty';
-        } elseif (! in_array($status, ['Ok', 'NotOk'], true)) {
+        if (Str::length($status) > 0 && ! in_array($status, ['Ok', 'NotOk'], true)) {
             $warnMsg[] = "Status must be either 'Ok' or 'NotOk'!";
         }
         // else {
@@ -255,7 +253,7 @@ class CharacteristicValueImporter extends Importer
             $warnMsg[] = 'Created By cannot be empty';
         }
 
-        if ($plantId != null) {
+        if ($plantId) {
             $user = User::where('name', $createdBy)->first();
 
             $userPlant = User::where('name', $createdBy)->where('plant_id', $plantId)->first();
@@ -280,7 +278,7 @@ class CharacteristicValueImporter extends Importer
             }
         }
 
-        if ($plant && $itemCode && $processOrder != '') {
+        if ($plant && $itemCode && $processOrder != '' && $processOrder != null) {
 
             $existingOrder = ProcessOrder::where('plant_id', $plantId)
                 ->where('process_order', $processOrder)