Date: 201901
Local time of day: 0601-1200
Location: CZQX.ARTCC, NF
Flight conditions: VMC
Light: Daylight
Aircraft: B767 Undifferentiated or Other Model
Operator: Air Carrier
Operating under: Part 121
Flight plan: IFR
Mission: Passenger
Flight phase: Cruise
Airspace: Class A CZQX
ATC / advisory: Center CZQX
Reporter organization: Air Carrier
Reporter function: Pilot Not Flying; Captain
Reporter qualification: Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Human factors: Workload; Situational Awareness; Human-Machine Interface
Second reporter function: First Officer; Pilot Flying
Anomaly: Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Clearance
Detector: Person Air Traffic Control
When detected: In-flight
Result: Air Traffic Control Issued New Clearance; Flight Crew Became Reoriented
Contributing factors: Procedure; Human Factors
Primary problem: Human Factors

Narrative: After receiving our random track oceanic clearance via CPDLC (Controller-Pilot Data Link Communication); the First Officer was the pilot flying and beat me to the FMC and displayed the clearance on his side. I acknowledged the clearance received via CPDLC and noticed the First Officer had begun circling the waypoints without my concurrence and told him to print out a copy so I could read the clearance while the First Officer circled the Lat/Long fixes as required by SOP. The First Officer insisted on finishing up the circling of the coordinates before printing. I looked at the clearance on the First Officer's FMC (Flight Management Computer) and thought all the waypoints were correct.By not printing out the clearance; page 2 was obscured but contained important details that both of us missed which were the notes that contained 'Route Change; Altitude Change'. The aircraft was at the properly assigned altitude of 34000 feet. What was missed was a subtle waypoint change after N4940W from N4950W to N4850W. After the first officers swapped seats for rest break; and approximately 200 miles east of N4940W; we received a SELCAL (Selective Calling) from Gander radio asking if we had received our oceanic clearance. I acknowledged affirmative and was asked to verify next waypoint which was N4940W. Gander called back with a new re-route which was after N4940W cleared to N4850W. After loading the FMC with the new route; the [Relief Pilot] noticed the new clearance was the same as the originally printed oceanic clearance and that we failed to change the waypoint from N4950W to N4850W.There was no route deviation; the new waypoint was entered into the FMC prior to reaching N4940W. Gander most likely noticed the discrepancy and was the reason for the reroute. When the flying First Officer returned from his rest break I debriefed him on the mistake and reiterated why the SOP must be followed. He was made aware of the SOP and the [Relief Pilot] showed him the procedure as outlined in the manual. The First Officer acknowledged his mistake; and the flight completed without any further incident.


Second narrative: [Report narrative contained no additional information.]


Synopsis: B767 flight crew reported missing a change in the clearance due to not following the SOP.