In that case, wouldn't it say 'upgrade unavailable'?

mudpuppy, I have seen this periodically on reservations booked as FO/GM when there was no medallion level change affecting the trip. At least a few of the times where my upgrades weren't requested, the request was there when I booked and later disappeared.

Regardless of whether the upgrade was never requested or an IT glitch dropped you from the upgrade list, a tweet to @DeltaAssist with your PNR requesting your upgrades will fix this in only seconds.

This is a good PSA/reminder for us all to double check all itineraries at 6/4/2 days out (depending on medallion level) to ensure we don't miss out on a window upgrade and end up having to hope for the best at the gate.