Scotland will have four clubs competing in European competition next season, with Rangers leading the way in the lucrative Champions League.
The Ibrox side will be seeded for the third qualifying round, starting on 26 July, and will face a further play-off round to reach the group stages.
Celtic enter the Europa League at the fourth and final qualifying round while Hearts drop in at the preceding round.
Dundee United will face three Europa League qualifying rounds.
The Tannadice side will discover their opponents when the draw for the first two qualifying rounds of the Europa League takes place on 20 June.
Rangers will find out who they will play when the draw for the Champions League third qualifying round is held on 15 July, the same day as the draw for the Europa League third qualifying round.
The Champions League and Europa League play-off draws are scheduled for 5 August.
Rangers were automatically entered into the lucrative group stages of the Champions League for the season just ended, while Celtic stumbled at the third qualifying round against the eventual Europa League finalists Braga.
Under Walter Smith, the Ibrox club finished third in a group that included Bursaspor, Valencia and finalists Manchester United before beating Sporting Lisbon in the Europa League round of 32, and eventually losing out to PSV Eindhoven in the last 16.
Motherwell, Hibernian and Dundee United also competed in last season's Europa League qualifiers, with Hibs slipping up at the third round against Maribor.
Celtic, United and Motherwell all failed to reach the group stages after defeats by Utrecht, AEK Athens and Odense respectively in the play-off round.
Champions League qualifying will begin on the 26/27 July, while the second qualifying round of the Europa League will begin on 14 July.
European qualifying schedule in full:RangersChampions League third round of qualifying on 26/27 July (second leg on 2/3 August)
CelticEuropa League fourth and final round of qualifying on 18 August (second leg on 25 August)
HeartsEuropa League third round of qualifying on 28 July (second leg on 4 August)
Dundee UnitedEuropa League second round of qualifying on 14 July (second leg on 21 July)