My problem is fairly simple. I have set this url in the Configuration>Page Delivery settings. The VEC tries to load this page, but our website auto-redirects it to the homepage because it doesn't have any order information stored in Session Storage (which is where it would be if a user had gone through the normal process of picking a product and trying to order it).
Because the page is redirected, it seems Target freaks out and the VEC becomes useless. It takes a long time for the VEC to "try" to load the page, then most of the links in the VEC menus seem to quit working.
So how can I set up an activity to perform some tests on our payment page?