Originally Posted by
WineCountryUA
UA issued tickets can only have a single crediting program. You can try to change programs between flights but since most carriers do not post immediately you can end up crediting to wrong programs. If there is sufficent time between flights and the first flight has posted then it is safe to change the second flight.
Thank you, did not know this. I was hoping to dump the long haul NH P into VS and OZ(Z), BR(J) into AC and 7G(Y) into NH, but looks like I'll probably just put it all on AC to save the trouble.