Originally Posted by
Marsh11
Didn't see a response to
https://www.flyertalk.com/forum/29202871-post2261.html and then the thread got closed, so I'll post here and answer my own question:
I checked with AA and they advised me that I would have to claim my bags in MUC and recheck them on A3. So just in case anyone else has this same question, here's the answer
AA definitely has an interline agreement with A3 (just checked ExpertFlyer), so your bags
should be tagged all the way to HER. If you just called the normal reservations number, most phone AAgents will have no idea about something like that.