1. Route: SFO-PVG
2. Date: 1/28
3. Fare class: R
4. O -> J
5. # of Plus Points: 30
6. How many days/weeks in advance ticket was purchased: 1 week
7. How many hours/days/weeks before departure did upgrade clear: at the gate (already on boarding group 3 when I was called to the podium)

I had thought this would be an easy upgrade, since 1 week out the seat map looked wide open, and 24 hrs earlier the app showed (if I recall correctly) ~20 out of 60 seats booked. But it really was down to the wire!