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

[5][6] The seeding pots for the league phase were confirmed 4 December 2019,[7] and were based on the access list ranking.

[4][8] 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.

The original fixture list was confirmed by UEFA on 3 March 2020 following the draw.

[14][15] Following the change, a revised schedule for the October and November 2020 fixtures was released by UEFA on 26 June 2020.