Sub t()
Dim rng As Range
Set rng = Union(Columns(1), Columns(3), Columns(5), Columns(6), Columns(9), Columns(10), Columns(14), Columns(16))
Application.DisplayAlerts = False
On Error GoTo Skip:
If Intersect(ActiveSheet.UsedRange, rng).SpecialCells(xlCellTypeBlanks).Count > 0 Then
Beep
MsgBox "Blanks"
End If
Skip:
Err.Clear
Application.DisplayAlerts = True
End Sub