Cancel and Re-book

[LSchrow]

That is true, but you CAN call MS and have them reallocate points so the ones that are left over end up being the current points instead of the banked ones. They are supposed to allocate that way anyway, but sometimes they don't. Once I got done with my change over, I knew there were about 24 points that could have been in that situation. I checked online though, and the program used all the right ones, so I didn't even have to call and reallocate.

sorry, i wasn't clear - and, of course, you are correct

clarification: borrowed points used for a cancelled reservation cannot be put back into their original UY. if a combination of current and borrowed were used, MS can allocate the borrowed to the new reservation (or can be done when rebooked online). if any borrowed points are left over from the original (cancelled) reservation after rebooking, those points can be cannot be put back, and would expire at the end of the use year they were borrowed into.
hopefully, that was just a bit clearer than mud