Outlook 2013 VBA Public Variable Doesn't Persist

Question

At the top of ThisOutlookSession I define:

Option Explicit
Public varTest As Long

I have a couple of test programs also in ThisOutlookSession.

Using debug I run this test3 program:

Sub test3()
  varTest = 42
End Sub

I then run test3b, but instead of varTest displaying a value of 42, its value shows as zero.

Sub test3b()
  MsgBox varTest
End Sub

Obviously I have some misconception about scope or persistence. What am I doing wrong?

Answer 1

After much more searching, I found the following by Sue Mosher, Outlook MVP:

Remember that ThisOutlookSession is a class module.

You need to add at least one regular code module to the project and declare your global variables in it, not in ThisOutlookSession, by using the Public keyword instead of plain old Dim

Sure enough when I move the Public variable definitions to a Module, the persistence issue is resolved.