AA Million Miler FAQ:
Which miles will count for the AAdvantage Million Miler program?
Flight distance on American marketed flights or the base miles earned for travel on eligible partner marketed flights will count toward AAdvantage Million Miler status.
Award travel, bonus miles do not count. Only revenue flying counts toward MM status, literally paid “butt in seat” miles.
As has been said, occasionally during IROPS / OSO one can be reticketed in a miles-earning fare category, but that’s a fluke and should never be counted on - and iirc there are a very few reported instances of AA clawing those back.