Hello Karan,
Could you please post the screen shot of the location determination activity "A" that you have created there ? By any chance you entered means of transport which is causing the problem ? May be you should check that once. Apart from that, in the rule control, I am not sure if you need to click on "2nd Access" Check box. Try to remove it and re-create a new sales document and see the behavior.
Hope this helps.
Babu Kilari