Originally Posted by
littlefish
Whatever … all told a quite extraordinary scenario to be faced with at MIA check-in. Even armed with what I know now from this thread, no idea how I'd cajole a check-in agent to get the systems to play ball.
Very odd.
One possibility is that the codeshare got dropped off the MIA-YYZ (e.g. changed timings / equipment on the AA side?) and so the agent was looking at a purely AA booking. It may have been using the magical words "it's a BAnnnn codeshare flight" may have liberated MCT on AA's system. Ultimately I'm not sure it would have made much difference since the re-check desk in YYZ would have re-labelled the bags if necessary, and so long as the flights were on time I don't see much of an issue. Though the process is convoluted - entering Canada, clearing customs technically, another round of security - and there is a fast track channel within T3 for this, the distances are fairly short. So had the items been labelled only to YYZ then it would have been fixable.