diff --git a/vba_code_kukan_detail_master.txt b/vba_code_kukan_detail_master.txt
index e319195..5fd0d66 100644
--- a/vba_code_kukan_detail_master.txt
+++ b/vba_code_kukan_detail_master.txt
@@ -295,6 +295,22 @@ Sub validateDetailData(ByVal ws As Worksheet, ByVal rowNum As Long)
         Exit Sub
     End If
     
+    ' Check G, H, I required and numeric
+    If Trim(ws.Cells(rowNum, 7).Value) = "" Or Not IsNumeric(ws.Cells(rowNum, 7).Value) Then
+        ws.Cells(rowNum, 17).Value = "G column is required and must be numeric"
+        Exit Sub
+    End If
+    
+    If Trim(ws.Cells(rowNum, 8).Value) = "" Or Not IsNumeric(ws.Cells(rowNum, 8).Value) Then
+        ws.Cells(rowNum, 17).Value = "H column is required and must be numeric"
+        Exit Sub
+    End If
+    
+    If Trim(ws.Cells(rowNum, 9).Value) = "" Or Not IsNumeric(ws.Cells(rowNum, 9).Value) Then
+        ws.Cells(rowNum, 17).Value = "I column is required and must be numeric"
+        Exit Sub
+    End If
+    
     ' Check L-P optional but must be numeric if entered
     Dim col As Long
     Dim colName As String