As a rule, a player or a team official sent off from the field of play and/or its immediate surrounds, including the technical area, is automatically suspended for the next match in the competition. In case of serious offences, the UEFA Control, Ethics and Disciplinary Body is entitled to augment this punishment, including by extending it to other competitions.
In case of repeated cautions:
in the qualifying competition, players and team officials are suspended for the next competition match after the third, fifth and any subsequent caution;
in the final tournament, players and team officials are suspended for the next competition match after two cautions and any subsequent even-numbered caution (fourth, sixth, etc.).
Cautions that have not resulted in a suspension and pending yellow-card suspensions expire on completion of the qualifying competition. They are not carried forward to the final tournament.
Cautions from matches in the final tournament that have not resulted in a suspension expire on completion of the quarter-finals. They are not carried forward to the semi-finals.
Cautions and pending yellow-card suspensions from the final tournament expire at the end of the competition.