Miles & More (Lufthansa, Austrian, Swiss, and other partners) - Austrian Record Locator # same as Lufthansa's?

Hi, I made a booking from my UA account with flights on both OS and LH. I was only given the LH record locator number along with ticket number. I was able to select seats on OS. Will there be a separate OS record? or do they share the same system? Thanks.

Hi, I made a booking from my UA account with flights on both OS and LH. I was only given the LH record locator number along with ticket number. I was able to select seats on OS. Will there be a separate OS record? or do they share the same system? Thanks.

same for both