The team that scores more goals on aggregate over the two legs advance to the next round.
If the aggregate score is level at the end of normal time of the second leg, the away goals rule is no longer applied starting from this season.
[4] To decide the winner of the tie, extra time is played, and if the same number of goals are scored by both teams during extra time, the tie is decided by a penalty shoot-out.
The schedule of the competition is as follows (all draws are held at the UEFA headquarters in Nyon, Switzerland).
[1] The draw for the third qualifying round was held on 19 July 2021, 13:00 CEST.
The losers were transferred to the Europa Conference League play-off round of their respective path.
The draw for the play-off round was held on 2 August 2021, 13:00 CEST.
The losers were transferred to the Europa Conference League group stage.