Thanks Bernard!
I understood the 2nd option 'consistency check for Default values' is similar to SU24_AUTO_REPAIR.
I don't see any point related to 'clean up Application Header Data' in the given note or related to SU24_AUTO_REPAIR , instead found one note 2124828 for the same . But I still don't get the background /why this option is placed in SU25.
When I ran this step in sandbox i'm getting message in bottom 'XX no of applications registered in Su22' , not sure what it is.
Any help?
Thanks,Krishna