Originally Posted by jsloan

Saver/partner business award inventory on EWR-SFO is extremely difficult to find. The chance that there's another flight to change to is negligible...


... which is good, because you're not eligible for SDC. Your ticket is under Aeroplan's rules, not UA's.

If the app allowed you to SDC, everything might be fine. Or, it might require that the ticket be reissued... and UA can't reissue the ticket, because they didn't issue it in the first place.

You may be able to stand by for an earlier flight -- which doesn't involve changing the ticket and so is safe -- but you'd likely end up in Economy.