To clarify my checkout
I have a shopping cart page which just has the updateable display manager on it. When you click checkout it goes to a confirm page which has a none updateable display manager and a checkout button which redirects the user to paypal.
I tried putting the select menu with NNZ and SNZ as values on both pages but I don't know how to implement the session variable.
I added the session variable trigger to existing rules so I have 6 rules.