Originally Posted by
LRMErnst
Just logged into my reservation to change seats for ORD-ATL and ATL-SFO. I looked at my SDC options, and now I was able to SDC to ORD-LAX-SFO in confirmed F.
Was this due to the fact that my M fare was converted to PN? I looked at these flights previously, and I was only able to SDC into Y.
UA has recently started offering PN => PN SDCs. SDC'ing from R will put you back into Y; it only seems to work for PN.