In round 3, twenty four teams are divided into twelve home and away play offs.
The draw for the qualification round was conducted on 16 July 2024 in Vienna, Austria.
SU ZRK Crvena Zvezda DHK Baník Most Armada Praxis Yalikavakspor Hypo Niederösterreich HC DAC Dunajská Streda Cabooter Fortes Venlo HC Gjorche Petrov-WHC Skopje SL Benfica Fredrikstad BK KPR Gminy Kobierzyce Super Amara Bera Bera H65 Höörs HK GC Amicitia Zürich Ankara Yenimahalle BSK HSG Blomberg-Lippe SCM Râmnicu Vâlcea JDA Bourgogne Dijon HB Vác The first legs were played on 5–6 October and the second legs were played on 12–13 October 2024.
The draw for the qualification round was conducted on 16 July 2024 in Vienna, Austria.
Thüringer HC TuS Metzingen Sola HK Paris 92 Motherson Mosonmagyaróvár RK Lokomotiva Zagreb KGHM MKS Zagłębie Lubin Borussia Dortmund Larvik HK DVSC Schaeffler ŽRK Zrinski Čakovec MKS FunFloor Lublin Atticgo BM Elche LC Brühl Handball IK Sävehof H65 Höörs HK[A] Super Amara Bera Bera[B] DHK Baník Most[C] Vác[D] Fredrikstad BK[E] JDA Bourgogne Dijon HB[F] HSG Blomberg-Lippe[G] SCM Râmnicu Vâlcea[H] KPR Gminy Kobierzyce[I] The first legs were played on 9–10 November and the second legs were played on 16–17 November 2024.
After Motherson Mosonmagyaróvár automatically reached the group stage, this tie was cancelled and both teams advanced.