In each draw, teams are seeded based on their 2020 UEFA club coefficients. For any team whose club coefficients are not final at the time of a draw, their club coefficients at that time, taking into account of all 2019–20 UEFA Champions League and Europa League matches played up to that point, are used (Regulations Article 13.03). Teams are divided into seeded and unseeded pots containing the same number of teams, and a seeded team is drawn against an unseeded team. For each tie, a draw is made between the two teams, and the first team drawn is the home team in single-legged matches (or the administrative "home" team in preliminary round matches), or home team of the first leg in play-off round two-legged ties. If the identity of the winners of the previous round is not known at the time of the draws, the seeding is carried out under the assumption that the team with the higher coefficient of an undecided tie advances to this round, which means if the team with the lower coefficient is to advance, it simply takes the seeding of its opponent. Teams from associations with political conflicts as decided by UEFA may not be drawn into the same tie. Prior to the draws, UEFA may form "groups" in accordance with the principles set by the Club Competitions Committee and based on geographical, logistical and political reasons, and they are purely for convenience of the draw and do not resemble any real groupings in the sense of the competition.