diff --git a/vba_code_kukan_detail_master.txt b/vba_code_kukan_detail_master.txt
index 505af41..8c9f48a 100644
--- a/vba_code_kukan_detail_master.txt
+++ b/vba_code_kukan_detail_master.txt
@@ -68,7 +68,7 @@ Sub ClearRowData(ByVal ws As Worksheet, ByVal rowNum As Long)
     ' Clear from D column onwards
     ws.Range(ws.Cells(rowNum, 4), ws.Cells(rowNum, 15)).ClearContents
     ws.Cells(rowNum, 6).Validation.Delete
-    ws.Cells(rowNum, 17).ClearContents ' Q column error info
+    ws.Cells(rowNum, 19).ClearContents ' Q column error info
 End Sub
 
 Sub MakeFDropdownByG(ByVal ws As Worksheet, ByVal rowNum As Long)
@@ -280,35 +280,35 @@ End Function
 Sub validateDetailData(ByVal ws As Worksheet, ByVal rowNum As Long)
     ' Check C column not empty
     If Trim(ws.Cells(rowNum, 3).Value) = "" Then
-        ws.Cells(rowNum, 17).ClearContents
+        ws.Cells(rowNum, 19).ClearContents
         Exit Sub
     End If
     
     ' Check G, H required and numeric (for composite key)
     If Trim(ws.Cells(rowNum, 9).Value) = "" Or Not IsNumeric(ws.Cells(rowNum, 9).Value) Then
-        ws.Cells(rowNum, 17).Value = "G column (I) is required and must be numeric"
+        ws.Cells(rowNum, 19).Value = "G column (I) is required and must be numeric"
         Exit Sub
     End If
     
     If Trim(ws.Cells(rowNum, 10).Value) = "" Or Not IsNumeric(ws.Cells(rowNum, 10).Value) Then
-        ws.Cells(rowNum, 17).Value = "H column (J) is required and must be numeric"
+        ws.Cells(rowNum, 19).Value = "H column (J) is required and must be numeric"
         Exit Sub
     End If
     
     ' Check I (K column) required
     If Trim(ws.Cells(rowNum, 11).Value) = "" Then
-        ws.Cells(rowNum, 17).Value = "I column (K) is required"
+        ws.Cells(rowNum, 19).Value = "I column (K) is required"
         Exit Sub
     End If
     
     ' Check J, K required and numeric
     If Trim(ws.Cells(rowNum, 12).Value) = "" Or Not IsNumeric(ws.Cells(rowNum, 12).Value) Then
-        ws.Cells(rowNum, 17).Value = "J column (L) is required and must be numeric"
+        ws.Cells(rowNum, 19).Value = "J column (L) is required and must be numeric"
         Exit Sub
     End If
     
     If Trim(ws.Cells(rowNum, 13).Value) = "" Or Not IsNumeric(ws.Cells(rowNum, 13).Value) Then
-        ws.Cells(rowNum, 17).Value = "K column (M) is required and must be numeric"
+        ws.Cells(rowNum, 19).Value = "K column (M) is required and must be numeric"
         Exit Sub
     End If
     
@@ -321,7 +321,7 @@ Sub validateDetailData(ByVal ws As Worksheet, ByVal rowNum As Long)
     For col = 14 To 18
         If Trim(ws.Cells(rowNum, col).Value) <> "" And Not IsNumeric(ws.Cells(rowNum, col).Value) Then
             colName = Mid(colLetter, col - 13, 1)
-            ws.Cells(rowNum, 17).Value = colName & " column must be numeric"
+            ws.Cells(rowNum, 19).Value = colName & " column must be numeric"
             Exit Sub
         End If
     Next col
@@ -339,14 +339,14 @@ Sub validateDetailData(ByVal ws As Worksheet, ByVal rowNum As Long)
     For r = 7 To lastRow
         If r <> rowNum And Trim(ws.Cells(r, 3).Value) = Trim(ws.Cells(rowNum, 3).Value) Then
             If Trim(ws.Cells(r, 9).Value) = g And Trim(ws.Cells(r, 10).Value) = h Then
-                ws.Cells(rowNum, 17).Value = "GH (I,J) combination already exists"
+                ws.Cells(rowNum, 19).Value = "GH (I,J) combination already exists"
                 Exit Sub
             End If
         End If
     Next r
     
     ' Validation passed
-    ws.Cells(rowNum, 17).ClearContents
+    ws.Cells(rowNum, 19).ClearContents
 End Sub