Award Ticket Issues: AA SHA-LAX-MIA-HAV
I tried JMB Partner Airlines Award Tickets planning a trip SHA-LAX-MIA-HAV by AA, each bound has enough tickets; but at the end, it continued to pop up "error: The selected itinerary cannot be used due to carriage restrictions. (26810 - 8320)". I am not sure what I did wrong, please help, with many thanks!
PS: Also I am trying an One-World trip: SHA-LAX-MIA-HAV-PAR-TYO; the first half SHA-LAX-MIA-HAV using AA, and the rest for AF. BUT, also failed!