Call AA Reservations about a flight change.
I have an upcoming MIA-LHR-MAD-CMN trip where the MAD-CMN segment has dropped out of the itinerary. I've gotten a "Call AA Reservations about a flight change." notification. When I look for possible options to get to CMN (while maintaining the MIA-LHR-MAD routing) I can't find anything on ITA. Individual segments are available but the routing as a whole is not.
How much flexibility have AA been giving people for these types of changes? My flights aren't until next month but I'd like to get the itinerary re-ticketed soon.