The draw for the first and second qualifying round is in two weeks with matches starting in the last week of June.
1st Qualifying Round
Seeded: The New Saints (WAL), Linfield Belfast (NIR), Vikingur (FAR), Hibernians FC (MAL), FC Santa Coloma (AND)
Unseeded: Alashkert FC (ARM), La Fiorita (SMA), Europa FC (GIB), Infonet Tallinn (EST), Trepca '89 (KOS)
2nd Qualifying Round
Seeded: Celtic (SCO), FC Salzburg (AUT), FC København (DEN), Ludogorets Razgrad (BUL), BATE Borisov (BLS), Legia Warzawa (POL), APOEL Nicosia (CYP), NK Maribor (SLO), Garabag Agdam (AZB), Malmö FF (SWE), FK Astana (KAZ), Partizan Belgrade (SRB), NK Rijeka (CRO), Rosenborg BK (NOR), Sheriff Tiraspol (MOL), Hapoel Beer-Sheva (ISR), FH Hafnarfjordur (ISL)
Unseeded: MSK Zilina (SVK), Zalgiris Vilnius (LIT), Dundalk (IRL), The New Saints* (WAL), Vardar Skopje (MAC), F91 Dudelange (LUX), FK Kükesi (ALB), Zrinjski Mostar (BOS), Linfield Belfast* (NIR), Buducnost Podgorica (MON), Vikingur* (FAR), Honved Budapest (HUN), Hibernians FC* (MLT), FC Santa Coloma* (AND), IFK Mariehamn (FIN), Spartaks Jurmala (LAT), Samtredia (GEO)
1st Qualifying Round
Seeded: The New Saints (WAL), Linfield Belfast (NIR), Vikingur (FAR), Hibernians FC (MAL), FC Santa Coloma (AND)
Unseeded: Alashkert FC (ARM), La Fiorita (SMA), Europa FC (GIB), Infonet Tallinn (EST), Trepca '89 (KOS)
2nd Qualifying Round
Seeded: Celtic (SCO), FC Salzburg (AUT), FC København (DEN), Ludogorets Razgrad (BUL), BATE Borisov (BLS), Legia Warzawa (POL), APOEL Nicosia (CYP), NK Maribor (SLO), Garabag Agdam (AZB), Malmö FF (SWE), FK Astana (KAZ), Partizan Belgrade (SRB), NK Rijeka (CRO), Rosenborg BK (NOR), Sheriff Tiraspol (MOL), Hapoel Beer-Sheva (ISR), FH Hafnarfjordur (ISL)
Unseeded: MSK Zilina (SVK), Zalgiris Vilnius (LIT), Dundalk (IRL), The New Saints* (WAL), Vardar Skopje (MAC), F91 Dudelange (LUX), FK Kükesi (ALB), Zrinjski Mostar (BOS), Linfield Belfast* (NIR), Buducnost Podgorica (MON), Vikingur* (FAR), Honved Budapest (HUN), Hibernians FC* (MLT), FC Santa Coloma* (AND), IFK Mariehamn (FIN), Spartaks Jurmala (LAT), Samtredia (GEO)