Originally Posted by
Kacee
While they both use Amadeus, the user interface, databases and back office are separate. Neither airline's is any good, though LX's is worse. I always find it amusing though how the cs agents for both airlines will never admit the IT made a mistake - it's always the fault of either UA or the passenger
LX/OS/SN use the same Amadeus Altea system as LH, the user interface is also the same. LX still uses other call centers to handle calls, but the system is the same. This happened in 2014-15.
Seat assignments are done in LH/LX system and paid for using an EMD. The synch of booking between UA's flavor of shares and Amadeus Altea is patchy at best.