I used the following code in my module. I'm actually not going to set the
range value until later in the code so I remarked it out. My problem is that
if user leaves the changelevel blank an error box appears saying that,"the
formula you typed contains an error". In this code I just need the user to
be forced to type an integer, cannot leave it blank and cannot type text. If
user types text or leaves the box blank I need msgbox("you must type a
number"). What am I missing? Thanks.

Dim Question3 As String, Title3 As String
Dim ChangeLevel As Variant

Const DftInt As Integer = 0
Const NumbersOnly As Long = 1

Question3 = "What is the Change Level?"
Title3 = "Change Level"
NeedChangeLevel:
ChangeLevel = Application.InputBox(Question3, Title3, DftInt, , , , ,
NumbersOnly)
If ChangeLevel = False Then
Exit Sub
End If
'See if the result can coerced into an Int
On Error Resume Next
'Range("E5").Value = CInt(ChangeLevel)
If Err.Number < 0 Then
MsgBox "Must be a number"
GoTo NeedChangeLevel
' Range("E5").Value = CVErr(xlErrNum)
End If
On Error GoTo 0