Originally Posted by
oliver2002
Nothing to do with IT, airlines can only check you in once the itenary is in their control. In this case LH takes over when you land in MUC and at that point you can check in with LH. I had the same issue flying DTW-YUL-MUC in June. LH.com would always default to AC.com for any checkin activity. Once I landed in YUL, LH.com and the app worked fine.
LO may be part of M&M, but doesn't mean they give full system acces to LH at any time. LH only has access to LO checkin systems where they do the ground handling for them for example.
You were correct, once I checked into the remote lounge, I asked the staffer if she could reissue my boarding pass. She looked at me quizically and I explained that my Known Traveller Number did not appear on the BP issued by LOT. She looked in her data and read off the number, which I confirmed, and she sounded surprised that it was missing, but readily printed it off. I was grateful, since the line for secondary inspection had about 25 people in it.