Each team played six matches within their group, using the home-and-away round-robin format on double matchdays in September, October and November 2020.

[6][7] The seeding pots for the league phase were confirmed 4 December 2019,[8] and were based on the access list ranking.

[4][9] The draw for the league phase took place at the Beurs van Berlage Conference Centre in Amsterdam, Netherlands on 3 March 2020, 18:00 CET.

[15][16] Following the change, a revised schedule for the October and November 2020 fixtures was released by UEFA on 26 June 2020.

The relegation play-outs were scheduled on the same dates as the 2022 FIFA World Cup qualifying play-offs.