B757 Undifferentiated or Other Model
Flight Crew Air Transport Pilot (ATP)
Situational Awareness; Training / Qualification
Deviation - Track / Heading All Types; Deviation / Discrepancy - Procedural Clearance
Air Traffic Control Issued Advisory / Alert; Air Traffic Control Issued New Clearance; Flight Crew Returned To Clearance; Flight Crew Became Reoriented
Procedure; Human Factors
Received the PDC by CPDLC. There was a statement of revised segment; but nothing for a revision was noted. The load prompt was not on the second page of the clearance.At cruise over LAS; Center asked what route we were on as they were showing us going to DRK and we were headed to DBL; (the original routing). Dispatch sent us a message that ATC might route [us] south over IIU for south arrival.Checked the PDC log on the acars and a prompt showed up for LOAD. Loaded the route onto the second route pages. After confirming the route with ATC and dispatch we flew the revised route.
B757 Captain reported not correctly loading a revised clearance received via CPDLC. The crew proceeded to takeoff and fly the old route until ATC intervened.