Cancel Macro is user selects 'cancel' at save menu

I currently have a macro that, before it runs, the save as menu automatically
comes up and asks the user to save his/her current data. However, I do not
know how to code anything to cancel the process.

Currently, if the user saves or not, the macro automatically continues. I
want the user to be able to choose between saving or not... but then be
prompted to continue running the macro or opt out.

My code, as it stands, is as follows....


Sub BackUp_Save()

Dim SaveName As Variant
Dim fFilter As String
Dim NewName As String

MsgBox "You are about to delete all data within the model. Saving is
suggested."
NewName = "Model BackUp"
fFilter = "Excel Files (*.xls), *.xls"
SaveName = Application.GetSaveAsFilename _
(NewName, fileFilter:=fFilter)

If SaveName = False Then
'use cancelled--what to do?
Else
ThisWorkbook.SaveAs Filename:=SaveName, FileFormat:=xlWorkbookNormal
End If

MsgBox "The model will now perform a refresh. Please wait."

End Sub

Try a yes/no msgbox if the user wants to save or not.

do you want to save

if true then
save
else
end 'end sub


MsgBox Function Example
This example uses the MsgBox function to display a critical-error
message in a dialog box with Yes and No buttons. The No button is
specified as the default response. The value returned by the MsgBox
function depends on the button chosen by the user. This example assumes
that DEMO.HLP is a Help file that contains a topic with a Help context
number equal to 1000.

Dim Msg, Style, Title, Help, Ctxt, Response, MyString
Msg = "Do you want to continue ?" ' Define message.
Style = vbYesNo + vbCritical + vbDefaultButton2 ' Define buttons.
Title = "MsgBox Demonstration" ' Define title.
Help = "DEMO.HLP" ' Define Help file.
Ctxt = 1000 ' Define topic
' context.
' Display message.
Response = MsgBox(Msg, Style, Title, Help, Ctxt)
If Response = vbYes Then ' User chose Yes.
MyString = "Yes" ' Perform some action.
Else ' User chose No.
MyString = "No" ' Perform some action.
End If