Originally Posted by
findark
If you want to share the exact itinerary, someone here might be able to look into the inventory problem.
The bottom line is going to be some sort of issue with the non-UA flights not posting correct inventory to the United website; the information transfer isn't perfect and when trying to ticket it will actually go out and get LH to confirm.
Thanks for further clarity on the issue of United tickets with partner flights, including Lufthansa Group (LHG). I find it interesting that I have flown problably 100+ United tickets with LHG flight segments over the past 25 years without knowing such a problem existed. It certainly makes sense now that such problems could exist and helps to educate me for the future. I have actually decided not to go ahead with the trip in February as other opportunities to use the PlusPoints have emerged, so I no longer am trying to book it. But this experience has been very helpful to me in better understanding the dynamics behind this types of tickets.