diff --git a/app/Filament/Imports/ProcessOrderImporter.php b/app/Filament/Imports/ProcessOrderImporter.php
index 7401b48..395fa42 100644
--- a/app/Filament/Imports/ProcessOrderImporter.php
+++ b/app/Filament/Imports/ProcessOrderImporter.php
@@ -132,7 +132,7 @@ class ProcessOrderImporter extends Importer
         }
         if ($processOrder == null || $processOrder == '') {
             $warnMsg[] = "Process order can't be empty!";
-        } elseif ($processOrder && Str::contains($processOrder, '.')) {
+        } elseif ($processOrder && (Str::contains($processOrder, '.') || Str::contains($processOrder, 'E', ignoreCase: true))) {
             $warnMsg[] = 'Invalid process order found!';
         }
         if ($lineNam == null || $lineNam == '') {