SG Flensburg-Handewitt won their second title after winning an all-German final against defending champions Füchse Berlin.
[6] The labels in the parentheses show how each team qualified for the place of its starting round: All draws were held at the EHF headquarters in Vienna, Austria.
Füchse Berlin Sporting CP HBC Nantes REBI BM Cuenca Górnik Zabrze RK Nexe Bjerringbro-Silkeborg Kadetten Schaffhausen IFK Kristianstad HC Alkaloid MOL-Tatabánya KC RK Gorenje Velenje MŠK Považská Bystrica Dinamo București AEK Athens Elverum Håndball SG Flensburg-Handewitt SL Benfica Chambéry Savoie MBH Logroño La Rioja Chrobry Głogów Skjern Håndbold HC Kriens-Luzern IK Sävehof Play Off Winner 1[a] Play Off Winner 2[b] Play Off Winner 3[c] Play Off Winner 4[d] Play Off Winner 5[e] RK Vojvodina RK Izviđač RK Lovćen The draw for the qualification round was conducted on 18 July 2023.
At the end of the main round, The four group winners advance to the quarter-finals, while the 2nd and 3rd place teams qualify for the play-offs.
In the playoffs, the eight teams ranked 2nd–3rd in Main round Groups I-IV play against each other in two-legged home-and-away matches.