I am in the middle of a YUL-AMM-BKK trip that I am crediting to AS. I haven't even started the second leg (I have 30 hours in Amman), checked my AS account and saw that have already received the flight credit for the first leg. Luckily, after three previous unsuccessful tries I was able to get the AS number entered in Montreal. Clearly they have revamped the system (on a recent AS flight from PHL to SEA, I received the credit before the flight had even landed!)