Originally Posted by
awheelhouse
Two flights I made last year booked with Diners and Avion points gave me the same amount of Aeroplan status points as I would have expected if I'd paid for the flights in the normal way.
The booking with Diners was with US Airways and the Avion was with Air Canada.
My experience would seem to support what YXUFlyboy has said, that reward bookings from companies other than Aeroplan book a revenue class of ticket.
To get back to the specifics of the OP. Airmiles rewards tickets are not eligible for Aeroplan Status Miles or earning any miles for that matter. That they sometimes do, doesn't change the rule, it only proves that AC IT is buggy. Airmiles rewards are booked into a particular booking class and do not have the same kind of availability as Avion or Diners. Avion points will let you buy any booking class that is within the $limit and you will earn whatever Aeroplan (or whatever) points that that class is entitled too.