HI! We're new here (very first post actually!), we landed on this thread after googling CPPO...
So here we are, UK residents, applied in
Sept 07, received a meaningless acknowledgement of receipt plus "do you still want", and then on
Feb 27 we got the "CPPO" letter as described above, asking us to send documents within 120 days - we posted everything on March 30. (incidentally a second, identical letter but with a different "OTT number" [?!?] was sent to us a week later-we ignored that and used the earlier one)
After that we don't know. Maybe too early for an AOR of our documents. Our initial office was the infamously backlogged London, so we thought Ottawa was good news, we started dreaming of a landing in Canada for the Autumn...But after reading stuff on this forum we're not so sure anymore.
If we understand correctly the next stage is we receive a medical request (which is basically a conditionnal YES), we send it and HOP, it's done? Any info would be greatly appreciated!
As for the reason for selection in the "small group"

NOC is 4141, so not in new list.
Guess it's to help London as they're so bad at it themselves?