I tried this and it did not work. I speculate that this feature is not available for AA, LH and other co-branded cards where the partner has (or may reserve the right to have) their own shopping portal. However, I have no knowledge, it's just a conjecture.
Hm, that is too bad. This does work with Citi Thank You points, though I was probably the only one who had to call in - "oh you just log in and it works." It did after some tinkering by Citi IT guy, as it did not work out of the box like advertised
